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Webcast-Catalyst9k
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show controller in ASR 1002

ASR-1002#sh controllers        

GigabitEthernet0/0/0

     26712 input vlan errors  -----What's Wrong ?

     0 ingress over sub drops

GigabitEthernet0/0/1

     0 input vlan errors

     0 ingress over sub drops

GigabitEthernet0/0/2

     0 input vlan errors

     0 ingress over sub drops

GigabitEthernet0/0/3

     0 input vlan errors

     0 ingress over sub drops

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2 REPLIES
Cisco Employee

Re: show controller in ASR 1002

G0/0/0 is most likely configured for 802.1Q. This counter increments when frames are received with a VLAN tag which the router is not configured for.

Cisco Employee

Re: show controller in ASR 1002

This counter was built into the 'show controller' output to record drops due to MAC address filters and/or VLAN filters.  This does not necessarily indicate a problem but may be normal given the configuration or traffic hitting this interface.  Hope this helps.

Brandon

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