User Tools
tech:network:cisco:ip-sla:ip-sla
Table of Contents
Cisco: IP SLA
Blueprint
-
-
- 4.0 Network Assurance
- 4.5 Configure and verify IPSLA
-
- 4.0 Infrastructure Security and Services
- 4.6 Network optimization
- 4.6.a IP SLA
- 4.6.a i ICMP probes
- 4.6.a ii UDP probes
- 4.6.a iii TCP probes
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-
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- 6.0 Infrastructure Services
- 6.4 Network optimization
- 6.4.a Implement and troubleshoot IP SLA
- 6.4.a [i] ICMP, UDP, Jitter, VoIP
- 6.4.b Implement and troubleshoot tracking object
- 6.4.b [i] Tracking object, tracking list
- 6.4.b [ii] Tracking different entities [e.g. interfaces, routes, IPSLA, and such]
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- 5.0 Infrastructure Services
- 5.4 Network optimization
- 5.4.a Implement and troubleshoot IP SLA
- 5.4.a [i] ICMP, UDP, jitter, VoIP
- 5.4.b Implement and troubleshoot tracking object
- 5.4.b [i] Tracking object, tracking list
- 5.4.b [ii] Tracking different entities [e.g. interfaces, routes, IPSLA, and such]
-
IP SLA Active Monitoring Lab
- R1
configure terminal ! hostname R1 ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! interface GigabitEthernet 0/0 ip address 10.1.3.1 255.255.255.0 no shutdown interface GigabitEthernet 0/1 ip address 10.1.2.1 255.255.255.0 no shutdown interface GigabitEthernet 0/2 ip address 10.1.5.1 255.255.255.0 no shutdown interface GigabitEthernet 0/3 ip address 10.0.128.1 255.255.255.0 no shutdown ! router ospf 1 network 10.1.3.1 0.0.0.0 area 0 network 10.1.2.1 0.0.0.0 area 0 network 10.1.5.1 0.0.0.0 area 0 network 10.0.128.1 0.0.0.0 area 0 ! end wr
- R2
configure terminal ! hostname R2 ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! interface GigabitEthernet 0/0 ip address 10.1.2.2 255.255.255.0 no shutdown interface GigabitEthernet 0/1 ip address 10.2.4.2 255.255.255.0 no shutdown ! router ospf 1 network 10.1.2.2 0.0.0.0 area 0 network 10.2.4.2 0.0.0.0 area 0 ! end wr
- R3
configure terminal ! hostname R3 ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! interface GigabitEthernet 0/0 ip address 10.3.4.3 255.255.255.0 no shutdown interface GigabitEthernet 0/1 ip address 10.1.3.3 255.255.255.0 no shutdown ! router ospf 1 network 10.3.4.3 0.0.0.0 area 0 network 10.1.3.3 0.0.0.0 area 0 ! end wr
- R4
configure terminal ! hostname R4 ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! interface Loopback 0 ip address 10.4.4.4 255.255.255.255 interface GigabitEthernet 0/0 ip address 10.2.4.4 255.255.255.0 no shutdown interface GigabitEthernet 0/1 ip address 10.3.4.4 255.255.255.0 no shutdown interface GigabitEthernet 0/2 ip address 10.4.5.4 255.255.255.0 no shutdown ! router ospf 1 network 10.4.4.4 0.0.0.0 area 0 network 10.2.4.4 0.0.0.0 area 0 network 10.3.4.4 0.0.0.0 area 0 network 10.4.5.4 0.0.0.0 area 0 ! end wr
- R5
configure terminal ! hostname R5 ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! interface GigabitEthernet 0/0 ip address 10.4.5.5 255.255.255.0 no shutdown interface GigabitEthernet 0/1 ip address 10.1.5.5 255.255.255.0 no shutdown ! router ospf 1 network 10.4.5.5 0.0.0.0 area 0 network 10.1.5.5 0.0.0.0 area 0 ! end wr
- R4
configure terminal ! ip sla responder ! end
- R1
configure terminal ! ip sla 1 ! destination port is 16384/udp udp-jitter 10.4.4.4 16384 codec g711ulaw !tos 160 ! EF(Expedited Forwarding, 46) tos 184 exit ip sla schedule 1 life forever start-time now ! end
- R1
configure terminal ! snmp-server host 10.0.128.254 public snmp-server enable traps ipsla ! Legacy !snmp-server enable traps rtr ! ip sla reaction-configuration 1 react mos threshold-value 500 300 threshold-type immediate action-type trapOnly ! end
- /etc/snmp/snmptrapd.conf
authCommunity log,execute,net public
sudo systemctl restart snmptrapd systemctl status snmptrapd tail -f /var/log/syslog | grep --line-buffered snmp
show ip sla statistics
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 12:20:08 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 1000 RTT Min/Avg/Max: 1/12/19 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 999
Number of DS Jitter Samples: 999
Source to Destination Jitter Min/Avg/Max: 0/2/998 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/10/1000 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 0
Source to Destination Loss Periods Number: 0
Source to Destination Loss Period Length Min/Max: 0/0
Source to Destination Inter Loss Period Length Min/Max: 0/0
Loss Destination to Source: 0
Destination to Source Loss Periods Number: 0
Destination to Source Loss Period Length Min/Max: 0/0
Destination to Source Inter Loss Period Length Min/Max: 0/0
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 1
MOS score: 4.34
Number of successes: 6
Number of failures: 0
Operation time to live: Forever
R1#
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 11 milliseconds
Latest operation start time: 18:02:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 1000 RTT Min/Avg/Max: 1/11/21 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 999
Number of DS Jitter Samples: 999
Source to Destination Jitter Min/Avg/Max: 0/5/1001 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/7/1004 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 0
Source to Destination Loss Periods Number: 0
Source to Destination Loss Period Length Min/Max: 0/0
Source to Destination Inter Loss Period Length Min/Max: 0/0
Loss Destination to Source: 0
Destination to Source Loss Periods Number: 0
Destination to Source Loss Period Length Min/Max: 0/0
Destination to Source Inter Loss Period Length Min/Max: 0/0
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 1
MOS score: 4.34
Number of successes: 2
Number of failures: 0
Operation time to live: Forever
Let's say to apply packet filter: Packet loss, Delay.
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 4.34
R1#sh ip sla statistics | i MOS
MOS score: 1.00
R1#sh ip sla statistics | i MOS
MOS score: 1.00
R1#sh ip sla statistics | i MOS
MOS score: 1.00
R1#sh ip sla statistics | i MOS
MOS score: 1.00
R1#sh ip sla statistics | i MOS
MOS score: 1.00
R1#sh ip sla statistics | i MOS
MOS score: 1.00
R1#
Oct 22 03:06:55 kozue snmptrapd[2370]: 2019-10-22 03:06:55 10.0.128.1(via UDP: [10.0.128.1]:54351->[10.0.128.254]:162) TRAP, SNMP v1, community public#012#011iso.3.6.1.4.1.9.9.42.2 Enterprise Specific Trap (5) Uptime: 0:07:10.40#012#011iso.3.6.1.4.1.9.9.42.1.2.1.1.3.1 = ""#011iso.3.6.1.4.1.9.9.42.1.4.1.1.5.1 = Hex-STRING: 0A 04 04 04 #011iso.3.6.1.4.1.9.9.42.1.2.19.1.2.1 = INTEGER: 6#011iso.3.6.1.4.1.9.9.42.1.2.19.1.10.1 = INTEGER: 1#011iso.3.6.1.4.1.9.9.42.1.2.19.1.9.1 = INTEGER: 100#011iso.3.6.1.4.1.9.9.42.1.2.19.1.5.1 = INTEGER: 500#011iso.3.6.1.4.1.9.9.42.1.2.19.1.6.1 = INTEGER: 300#011iso.3.6.1.4.1.9.9.42.1.2.2.1.33.1 = Hex-STRING: 00 00 00 00 00 00 00 0A 10 BA FE 90 10 D5 AA E0 #01290 FE BA 10 10 D5 AA E0 10 BA FE 90 Oct 22 03:06:56 kozue snmptrapd[2370]: 2019-10-22 03:06:56 10.0.128.1(via UDP: [10.0.128.1]:54351->[10.0.128.254]:162) TRAP, SNMP v1, community public#012#011iso.3.6.1.4.1.9.9.42.2 Enterprise Specific Trap (5) Uptime: 0:07:10.40#012#011iso.3.6.1.4.1.9.9.42.1.2.1.1.12.1 = ""#011iso.3.6.1.4.1.9.9.42.1.4.1.1.5.1 = Hex-STRING: 0A 04 04 04 #011iso.3.6.1.4.1.9.9.42.1.2.19.1.2.1 = INTEGER: 6#011iso.3.6.1.4.1.9.9.42.1.2.19.1.10.1 = INTEGER: 1#011iso.3.6.1.4.1.9.9.42.1.2.19.1.9.1 = INTEGER: 100#011iso.3.6.1.4.1.9.9.42.1.2.19.1.5.1 = INTEGER: 500#011iso.3.6.1.4.1.9.9.42.1.2.19.1.6.1 = INTEGER: 300#011iso.3.6.1.4.1.9.9.42.1.2.2.1.33.1 = Hex-STRING: 00 00 00 00 00 00 00 0B 10 D5 AA E0 10 BA FE 90 #01200 00 00 00 00 00 00 0A 10 BA FE 90 Oct 22 03:07:13 kozue snmpd[871]: error on subcontainer 'ia_addr' insert (-1)
MIB
1.3.6.1.4.1.9.9.42.1.2.19.1.9
rttMonReactValue
Free CISCO-RTTMON-MIB SNMP MIB Download - Free MIB Download - Search MIBs - OiDViEW
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:24:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 1000 RTT Min/Avg/Max: 1/12/19 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 999
Number of DS Jitter Samples: 999
Source to Destination Jitter Min/Avg/Max: 0/2/6 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/9/1001 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 0
Source to Destination Loss Periods Number: 0
Source to Destination Loss Period Length Min/Max: 0/0
Source to Destination Inter Loss Period Length Min/Max: 0/0
Loss Destination to Source: 0
Destination to Source Loss Periods Number: 0
Destination to Source Loss Period Length Min/Max: 0/0
Destination to Source Inter Loss Period Length Min/Max: 0/0
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 1
MOS score: 4.34
Number of successes: 24
Number of failures: 0
Operation time to live: Forever
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:24:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 1000 RTT Min/Avg/Max: 1/12/19 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 999
Number of DS Jitter Samples: 999
Source to Destination Jitter Min/Avg/Max: 0/2/6 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/9/1001 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 0
Source to Destination Loss Periods Number: 0
Source to Destination Loss Period Length Min/Max: 0/0
Source to Destination Inter Loss Period Length Min/Max: 0/0
Loss Destination to Source: 0
Destination to Source Loss Periods Number: 0
Destination to Source Loss Period Length Min/Max: 0/0
Destination to Source Inter Loss Period Length Min/Max: 0/0
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 1
MOS score: 4.34
Number of successes: 24
Number of failures: 0
Operation time to live: Forever
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:24:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 1000 RTT Min/Avg/Max: 1/12/19 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 999
Number of DS Jitter Samples: 999
Source to Destination Jitter Min/Avg/Max: 0/2/6 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/9/1001 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 0
Source to Destination Loss Periods Number: 0
Source to Destination Loss Period Length Min/Max: 0/0
Source to Destination Inter Loss Period Length Min/Max: 0/0
Loss Destination to Source: 0
Destination to Source Loss Periods Number: 0
Destination to Source Loss Period Length Min/Max: 0/0
Destination to Source Inter Loss Period Length Min/Max: 0/0
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 1
MOS score: 4.34
Number of successes: 24
Number of failures: 0
Operation time to live: Forever
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:24:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 1000 RTT Min/Avg/Max: 1/12/19 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 999
Number of DS Jitter Samples: 999
Source to Destination Jitter Min/Avg/Max: 0/2/6 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/9/1001 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 0
Source to Destination Loss Periods Number: 0
Source to Destination Loss Period Length Min/Max: 0/0
Source to Destination Inter Loss Period Length Min/Max: 0/0
Loss Destination to Source: 0
Destination to Source Loss Periods Number: 0
Destination to Source Loss Period Length Min/Max: 0/0
Destination to Source Inter Loss Period Length Min/Max: 0/0
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 1
MOS score: 4.34
Number of successes: 24
Number of failures: 0
Operation time to live: Forever
Let's say set Packet loss chance to 10%.
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:25:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 803 RTT Min/Avg/Max: 1/12/17 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 645
Number of DS Jitter Samples: 729
Source to Destination Jitter Min/Avg/Max: 0/4/998 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/5/1000 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 116
Source to Destination Loss Periods Number: 136
Source to Destination Loss Period Length Min/Max: 1/4
Source to Destination Inter Loss Period Length Min/Max: 1/123
Loss Destination to Source: 81
Destination to Source Loss Periods Number: 73
Destination to Source Loss Period Length Min/Max: 1/2
Destination to Source Inter Loss Period Length Min/Max: 1/54
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 93
MOS score: 1.00
Number of successes: 25
Number of failures: 0
Operation time to live: Forever
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:26:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 791 RTT Min/Avg/Max: 1/12/18 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 618
Number of DS Jitter Samples: 697
Source to Destination Jitter Min/Avg/Max: 0/2/6 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/4/1003 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 101
Source to Destination Loss Periods Number: 136
Source to Destination Loss Period Length Min/Max: 1/3
Source to Destination Inter Loss Period Length Min/Max: 1/105
Loss Destination to Source: 108
Destination to Source Loss Periods Number: 93
Destination to Source Loss Period Length Min/Max: 1/3
Destination to Source Inter Loss Period Length Min/Max: 1/32
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 93
MOS score: 1.00
Number of successes: 26
Number of failures: 0
Operation time to live: Forever
R1#
set to 2%.
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 12 milliseconds
Latest operation start time: 18:31:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 939 RTT Min/Avg/Max: 1/12/25 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 883
Number of DS Jitter Samples: 906
Source to Destination Jitter Min/Avg/Max: 0/4/1001 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/5/1002 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 27
Source to Destination Loss Periods Number: 53
Source to Destination Loss Period Length Min/Max: 1/2
Source to Destination Inter Loss Period Length Min/Max: 1/90
Loss Destination to Source: 34
Destination to Source Loss Periods Number: 32
Destination to Source Loss Period Length Min/Max: 1/2
Destination to Source Inter Loss Period Length Min/Max: 1/160
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 18
MOS score: 3.80
Number of successes: 31
Number of failures: 0
Operation time to live: Forever
set to 1%.
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: udp-jitter
Latest RTT: 11 milliseconds
Latest operation start time: 18:33:42 UTC Mon Oct 21 2019
Latest operation return code: OK
RTT Values:
Number Of RTT: 958 RTT Min/Avg/Max: 1/11/20 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 917
Number of DS Jitter Samples: 940
Source to Destination Jitter Min/Avg/Max: 0/4/1002 milliseconds
Destination to Source Jitter Min/Avg/Max: 0/6/1003 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Loss Values:
Loss Source to Destination: 24
Source to Destination Loss Periods Number: 34
Source to Destination Loss Period Length Min/Max: 1/2
Source to Destination Inter Loss Period Length Min/Max: 3/218
Loss Destination to Source: 18
Destination to Source Loss Periods Number: 17
Destination to Source Loss Period Length Min/Max: 1/2
Destination to Source Inter Loss Period Length Min/Max: 3/178
Out Of Sequence: 0 Tail Drop: 0
Packet Late Arrival: 0 Packet Skipped: 0
Voice Score Values:
Calculated Planning Impairment Factor (ICPIF): 14
MOS score: 3.96
Number of successes: 33
Number of failures: 0
Operation time to live: Forever
IP SLA HSRP Object Tracking
- R1
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R1 ! access-list 1 permit 172.16.0.0 0.0.0.255 ! ip nat inside source list 1 interface GigabitEthernet 0/2 overload ! interface GigabitEthernet 0/1 ip address 172.16.0.1 255.255.255.0 no shutdown standby 1 ip 172.16.0.254 standby 1 priority 105 standby 1 preempt ip nat inside interface GigabitEthernet 0/2 ip address 10.1.3.1 255.255.255.0 no shutdown ip nat outside ! ip route 0.0.0.0 0.0.0.0 10.1.3.3
- R2
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R2 ! access-list 1 permit 172.16.0.0 0.0.0.255 ! ip nat inside source list 1 interface GigabitEthernet 0/2 overload ! interface GigabitEthernet 0/1 ip address 172.16.0.2 255.255.255.0 no shutdown standby 1 ip 172.16.0.254 standby 1 priority 100 standby 1 preempt ip nat inside interface GigabitEthernet 0/2 ip address 10.2.3.2 255.255.255.0 no shutdown ip nat outside ! ip route 0.0.0.0 0.0.0.0 10.2.3.3
- R3
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R3 ! interface GigabitEthernet 0/1 ip address 10.1.3.3 255.255.255.0 no shutdown interface GigabitEthernet 0/2 ip address 10.2.3.3 255.255.255.0 no shutdown interface Loopback 0 ip address 10.3.3.3 255.255.255.255 no shutdown
- R4
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R4 ! interface GigabitEthernet 0/1 ip address 172.16.0.4 255.255.255.0 no shutdown ! ip route 0.0.0.0 0.0.0.0 172.16.0.254
- R1
configure terminal ! ip sla 1 icmp-echo 10.1.3.3 source-interface GigabitEthernet 0/2 timeout 5000 frequency 10 exit ip sla schedule 1 life forever start-time now ! track 101 ip sla 1 reachability exit track 102 interface GigabitEthernet 0/2 line-protocol exit ! interface GigabitEthernet 0/1 standby 1 track 101 standby 1 track 102 ! end
- R1
R1#sh standby
GigabitEthernet0/1 - Group 1
State is Active
1 state change, last state change 04:17:06
Virtual IP address is 172.16.0.254
Active virtual MAC address is 0000.0c07.ac01
Local virtual MAC address is 0000.0c07.ac01 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.008 secs
Preemption enabled
Active router is local
Standby router is 172.16.0.2, priority 100 (expires in 9.472 sec)
Priority 105 (configured 105)
Track object 101 state Up decrement 10
Track object 102 state Up decrement 10
Group name is "hsrp-Gi0/1-1" (default)
R1#
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 2 milliseconds
Latest operation start time: 03:43:16 UTC Wed Nov 6 2019
Latest operation return code: OK
Number of successes: 36
Number of failures: 0
Operation time to live: Forever
R1#sh ip sla statistics
*Nov 6 03:44:42.638: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 03:44:36 UTC Wed Nov 6 2019
Latest operation return code: Timeout
Number of successes: 43
Number of failures: 1
Operation time to live: Forever
R1#show standby
GigabitEthernet0/1 - Group 1
State is Speak
8 state changes, last state change 00:00:05
Virtual IP address is 172.16.0.254
Active virtual MAC address is 0000.0c07.ac01
Local virtual MAC address is 0000.0c07.ac01 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.112 secs
Preemption enabled
Active router is 172.16.0.2, priority 100 (expires in 8.224 sec)
Standby router is unknown
Priority 95 (configured 105)
Track object 101 state Down decrement 10
Track object 102 state Up decrement 10
Group name is "hsrp-Gi0/1-1" (default)
R1#
*Nov 6 03:49:55.637: %HSRP-5-STATECHANGE: GigabitEthernet0/1 Grp 1 state Speak -> Standby
R1#
R1#
*Nov 6 03:44:43.013: %HSRP-5-STATECHANGE: GigabitEthernet0/1 Grp 1 state Active -> Speak
R1#
*Nov 6 03:44:54.730: %HSRP-5-STATECHANGE: GigabitEthernet0/1 Grp 1 state Speak -> Standby
R1#
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int gig0/2
R1(config-if)#shut
R1(config-if)#
*Nov 6 03:48:10.929: %TRACK-6-STATE: 102 interface Gi0/2 line-protocol Up -> Down
R1(config-if)#do sh
*Nov 6 03:48:11.065: %HSRP-5-STATECHANGE: GigabitEthernet0/1 Grp 1 state Active -> Speak
R1(config-if)#do sh standby
*Nov 6 03:48:12.904: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 6 03:48:13.904: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to down
R1(config-if)#do sh standby
GigabitEthernet0/1 - Group 1
State is Speak
5 state changes, last state change 00:00:03
Virtual IP address is 172.16.0.254
Active virtual MAC address is 0000.0c07.ac01
Local virtual MAC address is 0000.0c07.ac01 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 1.440 secs
Preemption enabled
Active router is 172.16.0.2, priority 100 (expires in 9.984 sec)
Standby router is unknown
Priority 95 (configured 105)
Track object 101 state Up decrement 10
Track object 102 state Down decrement 10
Group name is "hsrp-Gi0/1-1" (default)
R1(config-if)#
*Nov 6 03:48:17.644: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#
*Nov 6 03:48:22.383: %HSRP-5-STATECHANGE: GigabitEthernet0/1 Grp 1 state Speak -> Standby
R1(config-if)#
- R2
R2#sh standby
GigabitEthernet0/1 - Group 1
State is Standby
10 state changes, last state change 04:13:26
Virtual IP address is 172.16.0.254
Active virtual MAC address is 0000.0c07.ac01
Local virtual MAC address is 0000.0c07.ac01 (v1 default)
Hello time 3 sec, hold time 10 sec
Next hello sent in 0.208 secs
Preemption enabled
Active router is 172.16.0.1, priority 105 (expires in 10.768 sec)
Standby router is local
Priority 100 (default 100)
Group name is "hsrp-Gi0/1-1" (default)
R2#
R2#
*Nov 6 03:44:30.084: %HSRP-5-STATECHANGE: GigabitEthernet0/1 Grp 1 state Standby -> Active
R2#
IP SLA Floating Static Route Object Tracking
- R1
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R1 ! access-list 1 permit 172.16.0.0 0.0.0.255 ! ip nat inside source list 1 interface GigabitEthernet 0/2 overload ! interface GigabitEthernet 0/1 ip address 172.16.0.1 255.255.255.0 no shutdown ip nat inside interface GigabitEthernet 0/2 ip address 10.1.3.1 255.255.255.0 no shutdown ip nat outside ! ip route 0.0.0.0 0.0.0.0 10.1.3.3
- R2
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R2 ! access-list 1 permit 172.16.0.0 0.0.0.255 ! ip nat inside source list 1 interface GigabitEthernet 0/2 overload ! interface GigabitEthernet 0/1 ip address 172.16.0.2 255.255.255.0 no shutdown ip nat inside interface GigabitEthernet 0/2 ip address 10.2.3.2 255.255.255.0 no shutdown ip nat outside ! ip route 0.0.0.0 0.0.0.0 10.2.3.3
- R3
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R3 ! interface GigabitEthernet 0/1 ip address 10.1.3.3 255.255.255.0 no shutdown interface GigabitEthernet 0/2 ip address 10.2.3.3 255.255.255.0 no shutdown interface Loopback 0 ip address 10.3.3.3 255.255.255.255 no shutdown
- R4
enable configure terminal ! ! no ip domain-lookup line console 0 no login exec-timeout 0 0 logging synchronous privilege level 15 exit line vty 0 15 no login privilege level 15 exit ! hostname R4 ! interface GigabitEthernet 0/1 ip address 172.16.0.4 255.255.255.0 no shutdown ! ip route 0.0.0.0 0.0.0.0 172.16.0.1
IP SLA Object Tracking Floating Static Route Configuration
- R1
configure terminal ! ip sla 1 icmp-echo 10.3.3.3 source-interface GigabitEthernet 0/2 timeout 5000 frequency 10 exit ip sla schedule 1 life forever start-time now ! track 101 ip sla 1 reachability exit ! no ip route 0.0.0.0 0.0.0.0 10.1.3.3 ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101 ip route 0.0.0.0 0.0.0.0 172.16.0.2 250 ! end
- R4
R4#ping 10.3.3.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/6 ms R4#tracer R4#traceroute 10.3.3.3 Type escape sequence to abort. Tracing the route to 10.3.3.3 VRF info: (vrf in name/id, vrf out name/id) 1 172.16.0.1 4 msec 5 msec 4 msec 2 10.1.3.3 10 msec * 7 msec R4#
- R1
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#
R1(config)#
R1(config)#
R1(config)#ip sla 1
R1(config-ip-sla)#icmp
R1(config-ip-sla)#icmp-echo
R1(config-ip-sla)#icmp-echo 10.3.3.3 sour
R1(config-ip-sla)#icmp-echo 10.3.3.3 source-in
R1(config-ip-sla)#icmp-echo 10.3.3.3 source-interface Giga
R1(config-ip-sla)#icmp-echo 10.3.3.3 source-interface GigabitEthernet 0/2
R1(config-ip-sla-echo)#tim
R1(config-ip-sla-echo)#timeout 5000
R1(config-ip-sla-echo)#fre
R1(config-ip-sla-echo)#frequency 10
R1(config-ip-sla-echo)#exit
R1(config)#ip sla
R1(config)#ip sla sch
R1(config)#ip sla schedule 1 li
R1(config)#ip sla schedule 1 life fo
R1(config)#ip sla schedule 1 life forever
*Nov 7 21:46:45.350: %PNP-6-PNP_DISCOVERY_STOPPED: PnP Discovery stopped (Config Wizard)
R1(config)#ip sla schedule 1 life forever star
R1(config)#ip sla schedule 1 life forever start-time no
R1(config)#ip sla schedule 1 life forever start-time now
R1(config)#do sh ip sla stati
R1(config)#do sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 1 milliseconds
Latest operation start time: 21:46:51 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 1
Number of failures: 0
Operation time to live: Forever
R1(config)#do sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 3 milliseconds
Latest operation start time: 21:47:01 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 2
Number of failures: 0
Operation time to live: Forever
R1(config)#tra
R1(config)#trac
R1(config)#track 101 ip sla
R1(config)#track 101 ip sla 1 ?
reachability Reachability
state Return code state
<cr>
R1(config)#track 101 ip sla 1 reach
R1(config)#track 101 ip sla 1 reachability
R1(config-track)#exit
R1(config)#do sh run | i ip route
ip route 0.0.0.0 0.0.0.0 10.1.3.3
R1(config)#no ip route 0.0.0.0 0.0.0.0 10.1.3.3
R1(config)#ip route 0.0.0.0 0.0
*Nov 7 21:48:07.450: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config)#ip route 0.0.0.0 0.0.0.0 10.1.3.3 tra
R1(config)#ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101
R1(config)#
R1(config)#do ping 10.3.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R1(config)#do ping 10.3.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R1(config)#ip route 0.0.0.0 0.0.0.0 172.16.0.2 ?
<1-255> Distance metric for this route
multicast multicast route
name Specify name of the next hop
permanent permanent route
tag Set tag for this route
track Install route depending on tracked item
<cr>
R1(config)#ip route 0.0.0.0 0.0.0.0 172.16.0.2 250
R1(config)#do sh ip s
*Nov 7 21:49:32.450: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config)#do sh ip sla stat
R1(config)#do sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 1 milliseconds
Latest operation start time: 21:49:31 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 8
Number of failures: 9
Operation time to live: Forever
R1(config)#do sh run | i ip route
ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101
ip route 0.0.0.0 0.0.0.0 172.16.0.2 250
R1(config)#do sh ip ro static
R1(config)#do sh ip ro static
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
R1(config)#do sh ip sla stati
R1(config)#do sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 3 milliseconds
Latest operation start time: 21:50:21 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 13
Number of failures: 9
Operation time to live: Forever
R1(config)#ping 10.3.3.3
^
% Invalid input detected at '^' marker.
R1(config)#do ping 10.3.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/6 ms
R1(config)#do ping 172.16.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/9 ms
R1(config)#sh ip ro 0.0.0.0
^
% Invalid input detected at '^' marker.
R1(config)#do sh ip ro 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "static", distance 1, metric 0, candidate default path
Routing Descriptor Blocks:
* 10.1.3.3
Route metric is 0, traffic share count is 1
R1(config)#int gig0/2
R1(config-if)#shut
R1(config-if)#do sh
*Nov 7 21:51:26.908: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 7 21:51:27.909: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to downi
R1(config-if)#do sh ip sla
R1(config-if)#do sh ip slastati
R1(config-if)#do sh ip slastati
^
% Invalid input detected at '^' marker.
R1(config-if)#do sh ip slast
*Nov 7 21:51:32.456: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#do sh ip sla stati
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 21:51:21 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 19
Number of failures: 10
Operation time to live: Forever
R1(config-if)#do sh ip ro statis
R1(config-if)#do sh ip ro stati
R1(config-if)#do sh ip ro static
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#do ping 10.3..33
% Unrecognized host or address, or protocol not running.
R1(config-if)#do ping 10.3.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 5/6/8 ms
R1(config-if)#
- R4
R4#traceroute 10.3.3.3
Type escape sequence to abort.
Tracing the route to 10.3.3.3
VRF info: (vrf in name/id, vrf out name/id)
1 172.16.0.1 3 msec 7 msec 4 msec
2 *
172.16.0.2 7 msec 5 msec
3 10.2.3.3 10 msec * 11 msec
R4#ping 10.3.3.3 repea
R4#ping 10.3.3.3 repeat 100000
Type escape sequence to abort.
Sending 100000, 100-byte ICMP Echos to 10.3.3.3, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!.
Success rate is 99 percent (435/436), round-trip min/avg/max = 2/5/16 ms
R4#
- R1
R1(config-if)#no shut
R1(config-if)#do sh ip
*Nov 7 21:54:21.545: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Nov 7 21:54:22.546: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up
R1(config-if)#do sh ip sla
R1(config-if)#do sh ip sla stai
R1(config-if)#do sh ip sla stati
R1(config-if)#do sh ip sla statistic
R1(config-if)#do sh ip sla statistic
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 3 milliseconds
Latest operation start time: 21:54:31 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 20
Number of failures: 27
Operation time to live: Forever
R1(config-if)#
*Nov 7 21:54:32.459: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config-if)#do sh ip ro static
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
R1(config-if)#do sh ip ro 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "static", distance 1, metric 0, candidate default path
Routing Descriptor Blocks:
* 10.1.3.3
Route metric is 0, traffic share count is 1
R1(config-if)#
- R3
R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#int gig0/1 R3(config-if)#shut R3(config-if)# *Nov 7 21:57:22.627: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down *Nov 7 21:57:23.627: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down R3(config-if)# *Nov 7 21:58:28.179: %PNP-6-PNP_DISCOVERY_STOPPED: PnP Discovery stopped (Config Wizard) R3(config-if)#
- R1
R1(config-if)#end
R1#sh ip
*Nov 7 21:57:25.618: %SYS-5-CONFIG_I: Configured from console by console
R1#sh ip sla stai
*Nov 7 21:57:27.466: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1#sh ip sla stai
R1#sh ip sla stai
^
% Invalid input detected at '^' marker.
R1#sh ip sla stati
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 21:57:21 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 36
Number of failures: 28
Operation time to live: Forever
R1#sh ip ro static
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1#
Optional Configuration
- R1
configure terminal ! track 101 ip sla 1 reachability delay down 15 up 30 exit ! end
- R1
R1#
R1#
R1#
R1#
R1#sh clock
*22:06:10.948 UTC Thu Nov 7 2019
R1#sh clock
*22:06:12.154 UTC Thu Nov 7 2019
R1#sh clock
*22:06:12.822 UTC Thu Nov 7 2019
R1#sh clock
*22:06:13.968 UTC Thu Nov 7 2019
R1#sh clock
*22:06:14.755 UTC Thu Nov 7 2019
R1#sh clock
*22:06:16.462 UTC Thu Nov 7 2019
R1#sh clock
*22:06:17.188 UTC Thu Nov 7 2019
R1#sh clock
*22:06:18.054 UTC Thu Nov 7 2019
R1#sh clock
*22:06:18.784 UTC Thu Nov 7 2019
R1#sh clock
*22:06:19.574 UTC Thu Nov 7 2019
R1#sh clock
*22:06:20.340 UTC Thu Nov 7 2019
R1#sh clock
*22:06:21.047 UTC Thu Nov 7 2019
R1#sh clock
*22:06:21.874 UTC Thu Nov 7 2019
R1#sh clock
*22:06:22.521 UTC Thu Nov 7 2019
R1#sh clock
*22:06:23.188 UTC Thu Nov 7 2019
R1#sh clock
*22:06:23.877 UTC Thu Nov 7 2019
R1#
*Nov 7 22:06:22.505: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1#sh clock
*22:06:24.553 UTC Thu Nov 7 2019
R1#sh clock
*22:06:25.683 UTC Thu Nov 7 2019
R1#
R1#
R1#sh clock
*22:06:26.751 UTC Thu Nov 7 2019
R1#sh clock
*22:06:27.317 UTC Thu Nov 7 2019
R1#sh clock
*22:06:27.864 UTC Thu Nov 7 2019
R1#sh clock
*22:06:29.194 UTC Thu Nov 7 2019
R1#sh clock
*22:06:29.860 UTC Thu Nov 7 2019
R1#sh clock
*22:06:30.427 UTC Thu Nov 7 2019
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#tra
R1(config)#tra?
track translate
R1(config)#trac
R1(config)#track 101 ip sla
R1(config)#track 101 ip sla 1 reac
R1(config)#track 101 ip sla 1 reachability
R1(config-track)#de
R1(config-track)#del
R1(config-track)#delay dow
R1(config-track)#delay down 15 ?
up Delay up change notification
<cr>
R1(config-track)#delay down 15 up 30
R1(config-track)#end
R1#
R1#
R1#
R1#
R1#
*Nov 7 22:07:07.223: %SYS-5-CONFIG_I: Configured from console by console
R1#
R1#
R1#
R1#
R1#
R1#
R1#do sh run | sec track
^
% Invalid input detected at '^' marker.
R1#sh run | sec track
track 101 ip sla 1 reachability
delay down 15 up 30
ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101
R1#
R1#
R1#
R1#
R1#
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config)#do sh ip sla stati
R1(config)#do sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 4 milliseconds
Latest operation start time: 22:09:11 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 56
Number of failures: 79
Operation time to live: Forever
R1(config)#int gig0/2
R1(config-if)#shut
R1(config-if)#do
*Nov 7 22:09:36.494: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 7 22:09:37.495: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to downs
R1(config-if)#do sh ip sla stai
R1(config-if)#do sh ip sla stati
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:09:31 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 58
Number of failures: 80
Operation time to live: Forever
R1(config-if)#do sh clock
*22:09:48.561 UTC Thu Nov 7 2019
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:09:31 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 58
Number of failures: 81
Operation time to live: Forever
R1(config-if)#do sh clock
*22:09:54.919 UTC Thu Nov 7 2019
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:09:31 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 58
Number of failures: 81
Operation time to live: Forever
R1(config-if)#do sh clock
*Nov 7 22:09:57.522: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#do sh clock
*22:10:00.369 UTC Thu Nov 7 2019
R1(config-if)#do sh clock
*22:10:03.816 UTC Thu Nov 7 2019
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#do sh clock
*22:10:20.901 UTC Thu Nov 7 2019
R1(config-if)#no shut
R1(config-if)#do sh clock
*Nov 7 22:10:30.353: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
R1(config-if)#do sh clock
*22:10:32.416 UTC Thu Nov 7 2019
R1(config-if)#
*Nov 7 22:10:31.352: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up
R1(config-if)#do sh clock
*22:10:35.521 UTC Thu Nov 7 2019
R1(config-if)#do sh clock
*22:10:37.048 UTC Thu Nov 7 2019
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh clock
*22:10:48.824 UTC Thu Nov 7 2019
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh clock
*22:10:56.773 UTC Thu Nov 7 2019
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh clock
*22:11:06.699 UTC Thu Nov 7 2019
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#
*Nov 7 22:11:12.524: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#shut
R1(config-if)#do sh clock
*22:12:16.039 UTC Thu Nov 7 2019
R1(config-if)#
*Nov 7 22:12:14.788: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 7 22:12:15.788: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to down
R1(config-if)#do sh clock
*22:12:18.419 UTC Thu Nov 7 2019
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#
*Nov 7 22:12:37.527: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#do sh ip sla stai
R1(config-if)#do sh ip sla stati
R1(config-if)#do sh ip sla statis
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:12:11 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 68
Number of failures: 92
Operation time to live: Forever
R1(config-if)#exit
R1(config)#track 101 ip sla 1 reac
R1(config)#track 101 ip sla 1 reachability
R1(config-track)#del
R1(config-track)#delay do
R1(config-track)#delay down 60 up
R1(config-track)#delay down 60 up 30
R1(config-track)#exit
R1(config)#int gig0/2
R1(config-if)#no shut
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#
*Nov 7 22:15:02.067: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Nov 7 22:15:03.068: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#sh ip sla
R1(config-if)#do sh ip sla statitstics
^
% Invalid input detected at '^' marker.
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 3 milliseconds
Latest operation start time: 22:15:21 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 70
Number of failures: 102
Operation time to live: Forever
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#
*Nov 7 22:15:42.529: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config-if)#shut
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#
*Nov 7 22:15:57.997: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 7 22:15:58.998: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to down
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:15:51 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 73
Number of failures: 105
Operation time to live: Forever
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:15:51 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 73
Number of failures: 108
Operation time to live: Forever
R1(config-if)#
*Nov 7 22:17:02.531: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#
R1(config-if)#
R1(config-if)#
R1(config-if)#no shut
R1(config-if)#
*Nov 7 22:17:37.160: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Nov 7 22:17:38.163: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh run | i
*Nov 7 22:18:12.533: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh run | sec track
track 101 ip sla 1 reachability
delay down 60 up 30
ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101
R1(config-if)#
static floating route tracking down delay not works interface down, changes immediately.
but delay down timer works when opposite side router down.
up timer works fine.
- R3
R3(config-if)#shut R3(config-if)# *Nov 7 22:50:28.944: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down *Nov 7 22:50:29.944: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down R3(config-if)#
show clock show ip sla statistics show ip route | include 0.0.0.0 show track 101
- R1
R1#sh run | sec track
track 101 ip sla 1 reachability
delay down 60 up 30
ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101
R1#
R1#sh clock
*22:50:23.067 UTC Thu Nov 7 2019
R1#
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:50:21 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 8
Number of failures: 13
Operation time to live: Forever
R1#
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:50:31 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 8
Number of failures: 14
Operation time to live: Forever
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:50:41 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 8
Number of failures: 15
Operation time to live: Forever
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#sh clock
*22:50:55.818 UTC Thu Nov 7 2019
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:50:51 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 8
Number of failures: 16
Operation time to live: Forever
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#
R1#sh clock
*22:51:26.925 UTC Thu Nov 7 2019
R1#
*Nov 7 22:51:27.634: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#
- R3
R3(config-if)#no shut R3(config-if)# *Nov 7 22:55:40.208: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up *Nov 7 22:55:41.209: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up R3(config-if)#
- R1
R1#sh clock
*22:55:34.388 UTC Thu Nov 7 2019
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:55:31 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 10
Number of failures: 42
Operation time to live: Forever
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 22:55:31 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 10
Number of failures: 42
Operation time to live: Forever
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 2 milliseconds
Latest operation start time: 22:55:41 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 11
Number of failures: 42
Operation time to live: Forever
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1#sh ip sla statistics
*Nov 7 22:56:12.649: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 2 milliseconds
Latest operation start time: 22:56:11 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 14
Number of failures: 42
Operation time to live: Forever
R1#
- R1
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#no shut
R1(config-if)#
*Nov 7 23:04:00.427: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Nov 7 23:04:01.428: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down
20 changes, last change 00:04:48
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down, delayed Up (26 secs remaining)
20 changes, last change 00:04:53
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down, delayed Up (19 secs remaining)
20 changes, last change 00:05:00
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 4 milliseconds
Latest operation start time: 23:04:21 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 23
Number of failures: 82
Operation time to live: Forever
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down, delayed Up (10 secs remaining)
20 changes, last change 00:05:09
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down, delayed Up (7 secs remaining)
20 changes, last change 00:05:12
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 3 milliseconds
Latest operation start time: 23:04:31 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 24
Number of failures: 82
Operation time to live: Forever
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down, delayed Up (1 sec remaining)
20 changes, last change 00:05:18
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#
*Nov 7 23:04:42.665: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#
- R1
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 10.1.3.3 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
R1(config-if)#shut
R1(config-if)#shut
*Nov 7 23:06:15.496: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 7 23:06:16.497: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to do sh ip ro | i 0.0.0.0
R1(config-if)#do sh ip ro | i 0.0.0.0
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [250/0] via 172.16.0.2
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 23:06:11 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 34
Number of failures: 83
Operation time to live: Forever
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Up, delayed Down (49 secs remaining)
21 changes, last change 00:01:50
Delay up 30 secs, down 60 secs
Latest operation return code: OK
Latest RTT (millisecs) 2
Tracked by:
Static IP Routing 0
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 23:06:11 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 34
Number of failures: 84
Operation time to live: Forever
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Up, delayed Down (43 secs remaining)
21 changes, last change 00:01:56
Delay up 30 secs, down 60 secs
Latest operation return code: OK
Latest RTT (millisecs) 2
Tracked by:
Static IP Routing 0
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Up, delayed Down (41 secs remaining)
21 changes, last change 00:01:58
Delay up 30 secs, down 60 secs
Latest operation return code: OK
Latest RTT (millisecs) 2
Tracked by:
Static IP Routing 0
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Up, delayed Down (40 secs remaining)
21 changes, last change 00:01:59
Delay up 30 secs, down 60 secs
Latest operation return code: OK
Latest RTT (millisecs) 2
Tracked by:
Static IP Routing 0
R1(config-if)#do sh ip sla stati
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 23:06:11 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 34
Number of failures: 86
Operation time to live: Forever
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Up, delayed Down (20 secs remaining)
21 changes, last change 00:02:19
Delay up 30 secs, down 60 secs
Latest operation return code: OK
Latest RTT (millisecs) 2
Tracked by:
Static IP Routing 0
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Up, delayed Down (7 secs remaining)
21 changes, last change 00:02:32
Delay up 30 secs, down 60 secs
Latest operation return code: OK
Latest RTT (millisecs) 2
Tracked by:
Static IP Routing 0
R1(config-if)#
*Nov 7 23:07:22.693: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#do sh track 101
Track 101
IP SLA 1 reachability
Reachability is Down
22 changes, last change 00:00:14
Delay up 30 secs, down 60 secs
Latest operation return code: Timeout
Tracked by:
Static IP Routing 0
R1(config-if)#
following verification is not work as expected because misconfiguration that default track route and floating static route(backup default route) has default admininistrative distance.
- Wrong
ip route 0.0.0.0 0.0.0.0 172.16.0.2 track 101 ip route 0.0.0.0 0.0.0.0 10.1.3.3
- Correct
ip route 0.0.0.0 0.0.0.0 10.1.3.3 track 101 ip route 0.0.0.0 0.0.0.0 172.16.0.2 250
- R1
R1#sh run | i ip route 0.0.0.0
ip route 0.0.0.0 0.0.0.0 172.16.0.2 track 101
ip route 0.0.0.0 0.0.0.0 10.1.3.3
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 172.16.0.2 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 172.16.0.2
[1/0] via 10.1.3.3
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.1.3.0/24 is directly connected, GigabitEthernet0/2
L 10.1.3.1/32 is directly connected, GigabitEthernet0/2
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.0.0/24 is directly connected, GigabitEthernet0/1
L 172.16.0.1/32 is directly connected, GigabitEthernet0/1
R1#sh ip ro 0.0.0.0
Routing entry for 0.0.0.0/0, supernet
Known via "static", distance 1, metric 0, candidate default path
Routing Descriptor Blocks:
172.16.0.2
Route metric is 0, traffic share count is 1
* 10.1.3.3
Route metric is 0, traffic share count is 1
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: 3 milliseconds
Latest operation start time: 04:34:38 UTC Thu Nov 7 2019
Latest operation return code: OK
Number of successes: 34
Number of failures: 0
Operation time to live: Forever
R1#
- R4
R4#traceroute 10.3.3.3 Type escape sequence to abort. Tracing the route to 10.3.3.3 VRF info: (vrf in name/id, vrf out name/id) 1 172.16.0.1 5 msec 5 msec 3 msec 2 10.1.3.3 11 msec * 11 msec R4#
- R1
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int gig0/2
R1(config-if)#shut
R1(config-if)#
*Nov 7 04:35:18.935: %LINK-2-INTVULN: In critical region with interrupt level=0, intfc=GigabitEthernet0/2 -Process= "IP SLAs XOS Event Processor", ipl= 0, pid= 48
-Traceback= 225BF1z 140323z 17733E7z 1776961z 14FA1Ez 14F094z 15A89Az 15B78Fz 22AF7Bz 1B107A6z 1B3C25Cz 1B3BDC4z 1B3BCE6z 1B4DF1Bz 1B4E587z 1B4E3C5z
R1(config-if)#
*Nov 7 04:35:21.991: %LINK-5-CHANGED: Interface GigabitEthernet0/2, changed state to administratively down
*Nov 7 04:35:22.992: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to down
R1(config-if)#
*Nov 7 04:35:30.863: %TRACK-6-STATE: 101 ip sla 1 reachability Up -> Down
R1(config-if)#do sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.0.0/24 is directly connected, GigabitEthernet0/1
L 172.16.0.1/32 is directly connected, GigabitEthernet0/1
R1(config-if)#end
R1#sh ip
*Nov 7 04:36:03.425: %SYS-5-CONFIG_I: Configured from console by console
R1#sh ip sl
R1#sh ip sla stat
R1#sh ip sla statistics
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Latest RTT: NoConnection/Busy/Timeout
Latest operation start time: 04:35:18 UTC Thu Nov 7 2019
Latest operation return code: Timeout
Number of successes: 38
Number of failures: 4
Operation time to live: Forever
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.0.0/24 is directly connected, GigabitEthernet0/1
L 172.16.0.1/32 is directly connected, GigabitEthernet0/1
R1#sh ip ro 0.0.0.0
% Network not in table
R1#sh
R1#show tra
R1#show tra
R1#show tra
R1#show tra
R1#show ip sl
R1#show ip sla ?
application IP SLAs Application
authentication IP SLAs Authentication Information
auto IP SLAs Auto Show Commands
configuration IP SLAs Configuration
endpoint-list IP SLAs Endpoint list configuration
enhanced-history IP SLAs Enhanced History
ethernet-monitor IP SLAs Auto Ethernet Monitor
event-publisher IP SLAs Event Publisher
group IP SLAs Group Scheduling/Configuration
history IP SLAs History
mpls-lsp-monitor IP SLAs MPLS LSP Monitor
reaction-configuration IP SLAs Reaction Configuration
reaction-trigger IP SLAs Reaction Trigger
responder IP SLAs Responder Information
statistics IP SLAs Statistics
summary IP SLAs Statistics Summary
twamp IP SLAs TWAMP
R1#show ip sla tra
R1#show ip tra
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#do ping 172.16.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/7 ms
R1(config)#do sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.0.0/24 is directly connected, GigabitEthernet0/1
L 172.16.0.1/32 is directly connected, GigabitEthernet0/1
R1(config)#int gig0/2
R1(config-if)#no shut
R1(config-if)#
*Nov 7 04:37:43.454: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up
*Nov 7 04:37:44.455: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/2, changed state to up
R1(config-if)#
*Nov 7 04:37:50.869: %TRACK-6-STATE: 101 ip sla 1 reachability Down -> Up
R1(config-if)#
why static route disappeared…
References
tech/network/cisco/ip-sla/ip-sla.txt · Last modified: 2019/11/09 08:39 by wnoguchi
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