[c-nsp] xconnect on subinterfaces c1841 possible?

[Christophe Lucas]

Hi,

Perhaps MTU problem between your C1841 and the remote end.

Best regards,

Le 06/12/2012 20:59, Christopher Hunt a écrit :
> Hello all,
>     I'm having some trouble getting xconnects to work on
> subinterfaces.  I have two back-to-back c1841s with a T1 between them,
> both running c1841-advipservicesk9-mz.124-12. The following config,
> which uses two untagged ethernet ports works fine:
> 
> ##working config##
> ip cef
> l2tp-class l2class
> !
> pseudowire-class pwire-DATA
>  encapsulation l2tpv3
>  protocol l2tpv3 l2class
>  ip local interface Loopback0
> !
> pseudowire-class pwire-VOICE
>  encapsulation l2tpv3
>  protocol l2tpv3 l2class
>  ip local interface Loopback0
> !
> interface Loopback0
>  ip address x.x.199.5 255.255.255.255
> !
> interface FastEthernet0/0
>  no ip address
>  duplex auto
>  speed auto
>  no cdp enable
>  xconnect x.x.199.6 100 pw-class pwire-VOICE
> !
> interface FastEthernet0/1
>  no ip address
>  duplex auto
>  speed auto
>  no cdp enable
>  xconnect x.x.199.6 101 pw-class pwire-DATA
> !
> interface Serial0/0/0
>  ip address x.x.199.1 255.255.255.252
>  no fair-queue
>  service-module t1 clock source internal
> !
> ip route x.x.199.6 255.255.255.255 x.x.199.2
> 
> But when I modify the config to put the xconnects on dot1q
> subinterfaces, the l2tpv3 tunnels don't come up:
> ## broken config##
> !
> interface FastEthernet0/0
>  no ip address
>  duplex auto
>  speed auto
>  no cdp enable
> !
> interface FastEthernet0/0.10
>  encapsulation dot1Q 10
>  no cdp enable
>  xconnect x.x.199.6 100 pw-class pwire-VOICE
> !
> interface FastEthernet0/0.20
>  encapsulation dot1Q 20
>  no cdp enable
>  xconnect x.x.199.6 101 pw-class pwire-DATA
> 
> 
> 
> Any ideas?  Is xconnect on a subinterface a special feature which
> isn't supported by this IOS?  TIA,
> 
> -Chris
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-- 
Christophe Lucas
http://www.clucas.fr/blog/