[c-nsp] 7600 Router Vlan / sub-interface question

[David Sinn]

Your best bet if you have to do this is to look into the "switchport  
vlan mapping" command since, as was pointed out earlier, the 7600 is  
a chassis VLAN unique box and not a interface VLAN unique box.  This  
would also require you to move to VLAN interfaces, but since the  
encapsulation command (and routed interfaces for that matter)  
actually are consuming internal VLAN's to begin with, it can be  
argued that it is more explicit to what is actually going on in the box.

David

On May 5, 2005, at 12:37 PM, Danielsen.Peter Christian PED wrote:

>> Any one, know if it's posible to add the same vlan id on to diffred
>> sub interface, i get a error when trying,
>> My setup looks like this, one 7609 connectet to to Cisco 3550  
>> switche,
>> alle running Layer3, i need to use the same vlan id on to or more sub
>> interfaces, all sub interfaces are Layer3 interfaces,
>>
>> My interface configuration on the 7609 is..
>> interface GigabitEthernet3/2
>>  description 3550-S1
>>  no ip address
>>  no ip proxy-arp
>>  spanning-tree portfast trunk
>> !
>> interface GigabitEthernet3/2.2
>>  encapsulation dot1Q 2
>>  ip vrf forwarding VRF00001
>>  ip address 172.31.7.85 255.255.255.252
>>  no ip proxy-arp
>> !
>> interface GigabitEthernet3/2.4
>>  encapsulation dot1Q 4
>>  ip vrf forwarding VRF0002
>>  ip address 172.30.7.85 255.255.255.252
>>  no ip proxy-arp
>> !
>> interface GigabitEthernet3/3
>>  description 3550-S2
>>  no ip address
>>  no ip proxy-arp
>>  spanning-tree portfast trunk
>> !
>> interface GigabitEthernet3/3.2
>>  encapsulation dot1Q 2
>>  ip vrf forwarding VRF00003
>>  ip address 172.32.7.85 255.255.255.252
>>  no ip proxy-arp
>>
>> If i try to add encapsulation dot1Q2 on sub-interface
>> GigabitEthernet3/3.2, i get the following error,
>> 7609(config-subif)#encapsulation dot1Q 2
>> Command rejected: VLAN 2 not available
>> 7609(config-subif)#
>>
>> Any one know how to get this to work !! ...
>>
>> /PED_DK
>>
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