[c-nsp] EoMPLS between 7600 & 7200 config clarification

[Bill Wade (wwade)]

Jose,

SVI (vlan interface) based EoMPLS requires an OSM, SIP-400, SIP-600
or ES-20 as core facing interface.

Bill



> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jose
> Sent: Tuesday, February 05, 2008 11:16 AM
> To: Cisco
> Subject: [c-nsp] EoMPLS between 7600 & 7200 config clarification
> 
> Hi everyone.  I'm doing some preliminary testing in our lab 
> in order to deploy EoMPLS on our ethernet network but I've 
> run into a little bit of a snag and was wondering if anyone 
> could clarify something for me.
> 
> The setup I have is 3550---7603-SUP32---7204VXR---3550
> 
> I have VLAN 800 setup to cross from one 3550 to the other.  
> The relevant portions of the config are as follows:
> 
> 7603:
> interface GigabitEthernet2/2
>  description to 3550
>  switchport
>  switchport trunk encapsulation dot1q
>  switchport trunk allowed vlan 800
>  switchport mode trunk
>  no ip address
>  load-interval 30
> !
> interface Vlan800
>  xconnect 10.0.1.4 800 encapsulation mpls !
> interface GigabitEthernet1/1
>  description 7603 to 7204
>  switchport
>  switchport trunk encapsulation dot1q
>  switchport trunk allowed vlan 220
>  switchport mode trunk
>  no ip address
>  load-interval 30
> !
> interface Vlan220
>  ip address 10.0.0.18 255.255.255.252
>  load-interval 30
>  tag-switching mtu 1520
>  tag-switching ip
> !
> 
> 7204VXR:
> interface FastEthernet1/0.220
>  encapsulation dot1Q 220
>  ip address 10.0.0.17 255.255.255.252
>  ip ospf cost 40
>  tag-switching mtu 1520
>  tag-switching ip
> !
> interface FastEthernet3/0.800
>  encapsulation dot1Q 800
>  xconnect 10.0.1.1 800 encapsulation mpls !
> 
> Now when I do a "show mpls l2 vc" I can see the circuit up 
> from the 7204 side but down from the 7603 side.  I think I 
> have everything setup properly but can't figure out why it 
> wouldn't work.
> 
> If I change things around a bit and reconfigure the 7603 to 
> use sub-interfaces with dot1q instead of vlan interfaces like this:
> 
> interface GigabitEthernet2/2.800
>  encapsulation dot1Q 800
>  xconnect 10.0.1.4 800 encapsulation mpls !
> 
> The circuit is up from both ends and pings from/to each 3550 
> are successful:
> 
> frort01-lab#sh mpls l2 vc
> 
> Local intf     Local circuit        Dest address    VC ID     
>  Status    
> -------------  -------------------- --------------- 
> ---------- ----------
> Gi2/2.800      Eth VLAN 800         10.0.1.4        800       
>  UP        
> 7603-lab#
> 
> Is this the only way to get EoMPLS to work between these two 
> devices?  
> I'm sure I've seen the xconnect command used on VLAN 
> interfaces before and it has worked fine.
> 
> Any thoughts or comments would be greatly appreaciated.
> 
> Thanks.
> 
> Jose
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