tech:network:vlan-access-port-configuration:vlan-access-port-configuration
Table of Contents
VLAN Access Port Configuration
VLAN Creation
DSW2#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0/1, Fa1/0/2, Fa1/0/3
Fa1/0/4, Fa1/0/5, Fa1/0/6
Fa1/0/7, Fa1/0/8, Fa1/0/9
Fa1/0/10, Fa1/0/11, Fa1/0/12
Fa1/0/13, Fa1/0/14, Fa1/0/15
Fa1/0/16, Fa1/0/17, Fa1/0/18
Fa1/0/19, Fa1/0/20, Fa1/0/21
Fa1/0/22, Fa1/0/23, Fa1/0/24
Gi1/0/1, Gi1/0/2
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
en conf t vlan 10 name Executive vlan 20,30 vlan 40-45 end
DSW2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
DSW2(config)#vlan 10
DSW2(config-vlan)#name Executive
DSW2(config-vlan)#vlan 20,30
DSW2(config-vlan)#vlan 40-45
DSW2(config-vlan)#end
DSW2#
*Mar 1 00:05:37.381: %SYS-5-CONFIG_I: Configured from console by console
DSW2#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0/1, Fa1/0/2, Fa1/0/3
Fa1/0/4, Fa1/0/5, Fa1/0/6
Fa1/0/7, Fa1/0/8, Fa1/0/9
Fa1/0/10, Fa1/0/11, Fa1/0/12
Fa1/0/13, Fa1/0/14, Fa1/0/15
Fa1/0/16, Fa1/0/17, Fa1/0/18
Fa1/0/19, Fa1/0/20, Fa1/0/21
Fa1/0/22, Fa1/0/23, Fa1/0/24
Gi1/0/1, Gi1/0/2
10 Executive active
20 VLAN0020 active
30 VLAN0030 active
40 VLAN0040 active
41 VLAN0041 active
42 VLAN0042 active
43 VLAN0043 active
44 VLAN0044 active
45 VLAN0045 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
10 enet 100010 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0
30 enet 100030 1500 - - - - - 0 0
40 enet 100040 1500 - - - - - 0 0
41 enet 100041 1500 - - - - - 0 0
42 enet 100042 1500 - - - - - 0 0
43 enet 100043 1500 - - - - - 0 0
44 enet 100044 1500 - - - - - 0 0
45 enet 100045 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
delete vlan 10. and names vlan 43 Internetwork Expert.
conf t no vlan 10 vlan 43 name "Internetwork Expert"
DSW2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
DSW2(config)#no vlan 10
DSW2(config)#vlan 43
DSW2(config-vlan)#name Internetwork Expert
^
% Invalid input detected at '^' marker.
Oops, space included name not permitted. Let's quote space contained name.
DSW2(config-vlan)#name "Internetwork Expert" DSW2(config-vlan)#^Z DSW2# *Mar 1 00:07:54.375: %SYS-5-CONFIG_I: Configured from console by console
passed.
DSW2#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0/1, Fa1/0/2, Fa1/0/3
Fa1/0/4, Fa1/0/5, Fa1/0/6
Fa1/0/7, Fa1/0/8, Fa1/0/9
Fa1/0/10, Fa1/0/11, Fa1/0/12
Fa1/0/13, Fa1/0/14, Fa1/0/15
Fa1/0/16, Fa1/0/17, Fa1/0/18
Fa1/0/19, Fa1/0/20, Fa1/0/21
Fa1/0/22, Fa1/0/23, Fa1/0/24
Gi1/0/1, Gi1/0/2
20 VLAN0020 active
30 VLAN0030 active
40 VLAN0040 active
41 VLAN0041 active
42 VLAN0042 active
43 Internetwork Expert active
44 VLAN0044 active
45 VLAN0045 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0
30 enet 100030 1500 - - - - - 0 0
40 enet 100040 1500 - - - - - 0 0
41 enet 100041 1500 - - - - - 0 0
42 enet 100042 1500 - - - - - 0 0
43 enet 100043 1500 - - - - - 0 0
44 enet 100044 1500 - - - - - 0 0
45 enet 100045 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
remove default vlans.
conf t no vlan 1 no vlan 1002 no vlan 1003 no vlan 1004 no vlan 1005 no vlan 1002-1005 end
results
DSW2# conf t
Enter configuration commands, one per line. End with CNTL/Z.
DSW2(config)#no vlan 1
%Default VLAN 1 may not be deleted.
DSW2(config)#no vlan 1002
%Default VLAN 1002 may not be deleted.
DSW2(config)#no vlan 1003
%Default VLAN 1003 may not be deleted.
DSW2(config)#no vlan 1004
%Default VLAN 1004 may not be deleted.
DSW2(config)#no vlan 1005
%Default VLAN 1005 may not be deleted.
DSW2(config)#no vlan 1002-1005
%Default VLAN 1002 may not be deleted.
%Default VLAN 1003 may not be deleted.
%Default VLAN 1004 may not be deleted.
%Default VLAN 1005 may not be deleted.
DSW2(config)#end
DSW2#
*Mar 1 00:19:25.781: %SYS-5-CONFIG_I: Configured from console by console
DSW2#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0/1, Fa1/0/2, Fa1/0/3
Fa1/0/4, Fa1/0/5, Fa1/0/6
Fa1/0/7, Fa1/0/8, Fa1/0/9
Fa1/0/10, Fa1/0/11, Fa1/0/12
Fa1/0/13, Fa1/0/14, Fa1/0/15
Fa1/0/16, Fa1/0/17, Fa1/0/18
Fa1/0/19, Fa1/0/20, Fa1/0/21
Fa1/0/22, Fa1/0/23, Fa1/0/24
Gi1/0/1, Gi1/0/2
20 VLAN0020 active
30 VLAN0030 active
40 VLAN0040 active
41 VLAN0041 active
42 VLAN0042 active
43 Internetwork Expert active
44 VLAN0044 active
45 VLAN0045 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
20 enet 100020 1500 - - - - - 0 0
30 enet 100030 1500 - - - - - 0 0
40 enet 100040 1500 - - - - - 0 0
41 enet 100041 1500 - - - - - 0 0
42 enet 100042 1500 - - - - - 0 0
43 enet 100043 1500 - - - - - 0 0
44 enet 100044 1500 - - - - - 0 0
45 enet 100045 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - ibm - 0 0
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
Switch port mode configuration
Access Port Configuration
DSW2#conf t Enter configuration commands, one per line. End with CNTL/Z. DSW2(config)#swi DSW2(config)#int f1/0/23 DSW2(config-if)#switchport mode access DSW2(config-if)#switchport access vlan 43 DSW2(config-if)#^Z DSW2# *Mar 1 05:00:34.600: %SYS-5-CONFIG_I: Configured from console by console DSW2#sh run int f1/0/23 Building configuration... Current configuration : 87 bytes ! interface FastEthernet1/0/23 switchport access vlan 43 switchport mode access end
both end of link's configured mode operational result
| Remote | |||||
|---|---|---|---|---|---|
| access | trunk | dynamic desirable | dynamic auto | ||
| Local | access | access | N/A | access | access |
| trunk | N/A | trunk | trunk | trunk | |
| dynamic desirable | access | trunk | trunk | trunk | |
| dynamic auto | access | trunk | trunk | access | |
Let's see both end of link's configured switch port combination result in.
4 x 4 / 2 = 8 patterns.
Verify in ASW1-2 link f0/4.
pre-configuration.
en conf t vlan 10 name Executive vlan 20 name Engineer vlan 30 name Sales vlan 40 name Corporate end
ASW1#show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Gi0/1
10 Executive active
20 Engineer active
30 Sales active
40 Corporate active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
ASW2#show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Gi0/1
10 Executive active
20 Engineer active
30 Sales active
40 Corporate active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
access x access
- Configuration
conf t int f0/4 switchport mode access switchport access vlan 20 end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode access ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 22:21:15.588: %SYS-5-CONFIG_I: Configured from console by console ASW1#sh run int f0/4 Building configuration... Current configuration : 84 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode access end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Off Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode access ASW2(config-if)#switchport access vlan 20 ASW2(config-if)#end ASW2# *Mar 1 22:20:54.549: %SYS-5-CONFIG_I: Configured from console by console ASW2#sh run int f0/4 Building configuration... Current configuration : 84 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode access end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Off Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode access no switchport access vlan 20 end
trunk x trunk
- Configuration
conf t int f0/4 switchport mode trunk end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode trunk ASW1(config-if)#end ASW1# *Mar 1 22:35:14.071: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:35:15.070: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 22:35:18.098: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW1#sh run int f0/4 Building configuration... Current configuration : 56 bytes ! interface FastEthernet0/4 switchport mode trunk end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode trunk ASW2(config-if)#end ASW2# *Mar 1 22:34:53.024: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:34:54.022: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW2# *Mar 1 22:34:57.042: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW2#sh run int f0/4 Building configuration... Current configuration : 56 bytes ! interface FastEthernet0/4 switchport mode trunk end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
stop DTP(Dynamic Trunking Protocol).
conf t int f0/4 switchport nonegotiate end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport nonegotiate ASW1(config-if)#end ASW1# *Mar 1 22:40:04.980: %SYS-5-CONFIG_I: Configured from console by console ASW1#sh run int f0/4 Building configuration... Current configuration : 80 bytes ! interface FastEthernet0/4 switchport mode trunk switchport nonegotiate end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: Off Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport nonegotiate ASW2(config-if)#end ASW2# *Mar 1 22:39:43.924: %SYS-5-CONFIG_I: Configured from console by console ASW2#sh run int f0/4 Building configuration... Current configuration : 80 bytes ! interface FastEthernet0/4 switchport mode trunk switchport nonegotiate end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: Off Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode trunk no switchport nonegotiate end
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#no switchport mode trunk Command rejected: An interface must be configured to the "Access" or "Trunk" modes to be configured to "NoNegotiate." ASW1(config-if)#no switchport nonegotiate ASW1(config-if)#end ASW1# *Mar 1 22:41:03.490: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:41:04.463: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 22:41:07.500: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#no switchport mode trunk Command rejected: An interface must be configured to the "Access" or "Trunk" modes to be configured to "NoNegotiate." ASW2(config-if)#no switchport nonegotiate ASW2(config-if)#end ASW2# *Mar 1 22:40:42.435: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:40:43.416: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW2# *Mar 1 22:40:46.453: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up
no switchport mode trunk before no switchport nonegotiate command rejected.
says switchport nonegotiate must be configured explicitly access or trunk.
correct remove configuration list are:
conf t int f0/4 no switchport nonegotiate no switchport mode trunk end
then
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#no switchport mode trunk ASW1(config-if)#end ASW1# *Mar 1 22:46:16.587: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:46:17.560: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 22:46:20.580: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#no switchport mode trunk ASW2(config-if)#end ASW2# *Mar 1 22:45:55.531: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:45:56.504: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW2# *Mar 1 22:45:59.533: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up
access x trunk
Let's configure malformed combination.
- Configuration
conf t int f0/4 switchport mode access switchport access vlan 20 end
conf t int f0/4 switchport mode trunk end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
CDP Discover Native VLAN Mismatch.
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode access ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 22:52:57.386: %SYS-5-CONFIG_I: Configured from console by console ASW1# *Mar 1 22:53:06.865: %SPANTREE-7-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk FastEthernet0/4 VLAN20. *Mar 1 22:53:06.865: %SPANTREE-7-BLOCK_PORT_TYPE: Blocking FastEthernet0/4 on VLAN0020. Inconsistent port type. ASW1# *Mar 1 22:53:06.882: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:08.685: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:09.692: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:10.699: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:11.705: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:12.712: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20) , with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:13.719: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:14.725: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1# *Mar 1 22:53:15.732: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1). ASW1#sh run int f0/4 Building configuration... Current configuration : 84 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode access end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Off Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none ASW1# *Mar 1 22:54:15.736: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (20), with ASW2 FastEthernet0/4 (1).
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode trunk ASW2(config-if)#end ASW2# *Mar 1 22:52:41.808: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:52:42.807: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW2# *Mar 1 22:52:45.827: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW2# *Mar 1 22:53:07.603: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (1), with ASW1 FastEthernet0/4 (20). ASW2#sh run int f0/4 Building configuration... Current configuration : 56 bytes ! interface FastEthernet0/4 switchport mode trunk end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none ASW2# *Mar 1 22:54:07.607: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/4 (1), with ASW1 FastEthernet0/4 (20).
- Cleanup configuration
conf t int f0/4 no switchport mode access no switchport access vlan 20 end
conf t int f0/4 no switchport mode trunk end
dynamic desirable x dynamic desirable
- Configuration
conf t int f0/4 switchport mode dynamic desirable switchport access vlan 20 end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
Administrative Mode: dynamic desirable, result in Operational Mode: trunk.
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode dynamic desirable ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 22:57:00.177: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:57:01.159: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 22:57:04.204: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW1#sh run int f0/4 Building configuration... Current configuration : 95 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode dynamic desirable end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic desirable Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode dynamic desirable ASW2(config-if)#switchport access vlan 20 ASW2(config-if)#end ASW2# *Mar 1 22:56:39.122: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 22:56:40.104: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW2# *Mar 1 22:56:43.149: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW2#sh run int f0/4 Building configuration... Current configuration : 95 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode dynamic desirable end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic desirable Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode dynamic desirable no switchport access vlan 20 end
dynamic auto x dynamic auto
- Configuration
conf t int f0/4 switchport mode dynamic auto switchport access vlan 20 end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
Administrative Mode: dynamic auto, result in Operational Mode: static access.
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode dynamic auto ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 22:58:43.852: %SYS-5-CONFIG_I: Configured from console by console ASW1#sh run int f0/4 Building configuration... Current configuration : 60 bytes ! interface FastEthernet0/4 switchport access vlan 20 end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic auto Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode dynamic auto ASW2(config-if)#switchport access vlan 20 ASW2(config-if)#end ASW2# *Mar 1 22:58:22.797: %SYS-5-CONFIG_I: Configured from console by console ASW2#sh run int f0/4 Building configuration... Current configuration : 60 bytes ! interface FastEthernet0/4 switchport access vlan 20 end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic auto Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode dynamic auto no switchport access vlan 20 end
dynamic desirable x dynamic auto
- Configuration
conf t int f0/4 switchport mode dynamic desirable switchport access vlan 20 end
conf t int f0/4 switchport mode dynamic auto switchport access vlan 20 end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
Result in Operational Mode: trunk.
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode dynamic desirable ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 23:00:58.129: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 23:00:59.110: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 23:01:02.155: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW1#sh run int f0/4 Building configuration... Current configuration : 95 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode dynamic desirable end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic desirable Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode dynamic auto ASW2(config-if)#switchport access vlan 20 ASW2(config-if)#end ASW2# *Mar 1 23:00:47.895: %SYS-5-CONFIG_I: Configured from console by console ASW2#sh run int f0/4 Building configuration... Current configuration : 60 bytes ! interface FastEthernet0/4 switchport access vlan 20 end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic auto Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode dynamic desirable no switchport access vlan 20 end
conf t int f0/4 no switchport mode dynamic auto no switchport access vlan 20 end
dynamic desirable x access
- Configuration
conf t int f0/4 switchport mode dynamic desirable switchport access vlan 20 end
conf t int f0/4 switchport mode access switchport access vlan 20 end
- Verify command
sh run int f0/4 sh int f0/4 switchport
- Console I/O
Result in Operational Mode: static access.
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode dynamic desirable ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 23:04:04.389: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 23:04:05.362: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1#| *Mar 1 23:04:08.408: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW1# *Mar 1 23:04:17.350: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 23:04:20.370: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW1#sh run int f0/4 Building configuration... Current configuration : 95 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode dynamic desirable end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic desirable Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode access ASW2(config-if)#switchport access vlan 20 ASW2(config-if)#end ASW2# *Mar 1 23:03:55.338: %SYS-5-CONFIG_I: Configured from console by console ASW2#sh run int f0/4 Building configuration... Current configuration : 84 bytes ! interface FastEthernet0/4 switchport access vlan 20 switchport mode access end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Off Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode dynamic desirable no switchport access vlan 20 end
conf t int f0/4 no switchport mode access no switchport access vlan 20 end
dynamic auto x trunk
- Configuration
conf t int f0/4 switchport mode dynamic auto switchport access vlan 20 end
conf t int f0/4 switchport mode trunk end
- Verify command
sh run int f0/4 sh int f0/4 switchport
Result in Operational Mode: trunk.
- Console I/O
ASW1#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW1(config)#int f0/4 ASW1(config-if)#switchport mode dynamic auto ASW1(config-if)#switchport access vlan 20 ASW1(config-if)#end ASW1# *Mar 1 23:28:52.713: %SYS-5-CONFIG_I: Configured from console by console ASW1# *Mar 1 23:29:02.888: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW1# *Mar 1 23:29:05.908: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW1#sh run int f0/4 Building configuration... Current configuration : 60 bytes ! interface FastEthernet0/4 switchport access vlan 20 end ASW1#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: dynamic auto Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 20 (Engineer) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
ASW2#conf t Enter configuration commands, one per line. End with CNTL/Z. ASW2(config)#int f0/4 ASW2(config-if)#switchport mode trunk ASW2(config-if)#end ASW2# *Mar 1 23:28:40.826: %SYS-5-CONFIG_I: Configured from console by console *Mar 1 23:28:41.816: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to down ASW2# *Mar 1 23:28:44.844: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up ASW2#sh run int f0/4 Building configuration... Current configuration : 56 bytes ! interface FastEthernet0/4 switchport mode trunk end ASW2#sh int f0/4 switchport Name: Fa0/4 Switchport: Enabled Administrative Mode: trunk Operational Mode: trunk Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: dot1q Negotiation of Trunking: On Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk Native VLAN tagging: enabled Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk associations: none Administrative private-vlan trunk mappings: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Protected: false Unknown unicast blocked: disabled Unknown multicast blocked: disabled Appliance trust: none
- Cleanup configuration
conf t int f0/4 no switchport mode dynamic auto no switchport access vlan 20 end
conf t int f0/4 no switchport mode trunk end
Configuration and Verification that's all.
References
tech/network/vlan-access-port-configuration/vlan-access-port-configuration.txt · Last modified: 2018/04/02 02:52 by 5.9.98.130
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