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.
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