[c-nsp] Mysterious VRF Interface on 6500

[Phil Mayers]

On 17/09/10 16:32, Devon True wrote:
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> All:
>
> I noticed that when I created a VRF on a 6500 running 12.2(33)SXH6, it created another interface:
>
> #sho vrf ipv4 interfaces
> Interface                        VRF                            Protocol   Address
> Vlan916                          VRFNAME                        up         x.x.x.162
> VRF_1_vlan1020                   VRFNAME                        up         x.x.x.162
>
> We are using "vrf definitions"
>
> vrf definition VRFNAME
>   rd x.x.x.x:914
>   !
>   address-family ipv4
>   route-target export asn:914
>   route-target import asn:914
>   route-target import asn:902
>   exit-address-family
>
> I cannot do a "show int VRF_1_vlan1020" on this mysterious interface. Any one have an idea why it was created?


VRFs on this platform use an internal vlan for various encaps/decaps 
features - see e.g. "sh vlan internal usage". You can ignore it, though 
it's a bit distracting it shows up in the CLI output.