[c-nsp] stange vlan 1 output

james list jameslist72 at gmail.com
Fri Oct 7 12:54:05 EDT 2016


xxx#sh int gigabitEthernet 8/45 switchport
Name: Gi8/45
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
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Operational private-vlan: none
Trunking VLANs Enabled: 269
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled

xxx#sh int gigabitEthernet 9/27 switchport
Name: Gi9/27
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: native
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Operational private-vlan: none
Trunking VLANs Enabled: 48
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL

Unknown unicast blocked: disabled
Unknown multicast blocked: disabled



2016-10-07 18:20 GMT+02:00 Nick Cutting <ncutting at edgetg.com>:

> This is the perfect time to run
>
> sh int g8/45 switchport
> sh int g9/27 switchport
>
> to get configured values VS negotiations
>
> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> james list
> Sent: Friday, October 7, 2016 12:18 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] stange vlan 1 output
>
> Hi experts,
>
> an issue on my c6500 sup720 12.2(33)SXI5.
>
>
>
> I have two equal trunk configuration ports:
>
>
>
> xxx#sh run int g8/45
>
> interface GigabitEthernet8/45
>
> switchport
>
>  switchport trunk encapsulation dot1q
>
>  switchport trunk allowed vlan 269
>
>  switchport mode trunk
>
>  logging event link-status
>
>  logging event trunk-status
>
>  load-interval 30
>
>  spanning-tree portfast edge trunk
>
>
>
> xxx#sh run int g9/27
>
> interface GigabitEthernet9/27
>
> switchport
>
>  switchport trunk encapsulation dot1q
>
>  switchport trunk allowed vlan 48
>
>  switchport mode trunk
>
>  logging event link-status
>
>  logging event trunk-status
>
>  load-interval 30
>
>  udld port
>
>  spanning-tree portfast edge trunk
>
>
>
> Do you see any reason why using "show interface status" I see vlan 1
> associated to g9/27 instead of trunk as for example of interface g8/45 ?
>
>
>
> xxx#sh interface status
>
> Port            Name                              Status       Vlan
>      Duplex  Speed Type
>
> Gi8/45       xxxx                            connected    trunk
> full   1000 1000BaseT
>
> Gi9/27       xxxx                             connected    1
>   full   1000 1000BaseT
>
>
>
> I see as well native vlan is not associated to gi9/27
>
>
>
> xxx#sh interfaces trunk
>
>
>
> Port                Mode         Encapsulation  Status        Native vlan
>
> Te1/1               on           802.1q         trunking      1
>
> Te1/2               on           802.1q         trunking      1
>
> Te1/3               on           802.1q         trunking      1
>
> Te1/4               on           802.1q         trunking      1
>
> Te2/1               on           802.1q         trunking      1
>
> Te2/2               on           802.1q         trunking      1
>
> Te2/3               on           802.1q         trunking      1
>
> Te3/4               on           802.1q         trunking      1
>
> Te3/6               on           802.1q         trunking      1
>
> Te3/7               on           802.1q         trunking      1
>
> Te3/8               on           802.1q         trunking      1
>
> Te7/1               on           802.1q         trunking      1
>
> Te7/3               on           802.1q         trunking      1
>
> Te7/9               on           802.1q         trunking      1
>
> Te7/13              on           802.1q         trunking      1
>
> Te7/14              on           802.1q         trunking      1
>
> Gi8/3               on           802.1q         trunking      1
>
> Gi8/9               on           802.1q         trunking      1
>
> Gi8/13              on           802.1q         trunking      1
>
> Gi8/29              on           802.1q         trunking      1
>
> Gi8/30              on           802.1q         trunking      1
>
> Gi8/43              on           802.1q         trunking      1
>
> Gi8/44              on           802.1q         trunking      1
>
> Gi8/45              on           802.1q         trunking      1
>
> Gi9/8               on           802.1q         trunking      1
>
> Gi9/9               on           802.1q         trunking      1
>
> Gi9/17              on           802.1q         trunking      1
>
> Gi9/18              on           802.1q         trunking      1
>
> Gi9/20              on           802.1q         trunking      1
>
> Gi9/21              on           802.1q         trunking      1
>
> Gi9/29              on           802.1q         trunking      1
>
> Gi9/30              on           802.1q         trunking      1
>
> Gi9/33              on           802.1q         trunking      1
>
> Gi9/35              on           802.1q         trunking      1
>
> Gi9/40              on           802.1q         trunking      1
>
> Gi9/43              on           802.1q         trunking      1
>
> Gi9/45              on           802.1q         trunking      1
>
> Gi9/46              on           802.1q         trunking      1
>
>
>
> Thanks in advance for any feedback.
>
>
> Cheers
>
> James
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