[c-nsp] trunks, vlans and a metroLAN

[Shane Short]

Any particular reason you're not just running the MetroE link as  
access ports? Some MetroE providers don't allow trunking.

-Shane

On 01/05/2008, at 10:02 AM, Mark Kent wrote:

>
> I've got the following scenario:
>
> a) a 7201 with a trunk to a 4948
>
> b) a metroLAN from that 4948 to a 6509
>
> c) a 7206/npe-g2 with a trunk to that 6509
>
> I need the 7201 to be layer3-connected to the 7206.
>
> I can't get it to work.  This is what I have:
>
> The 7201:
>
> interface GigabitEthernet0/1.90
> encapsulation dot1Q 90
> ip address 192.0.2.56 255.255.255.254
>
> and
>
> The 4948 trunk port to the 7201:
>
> interface GigabitEthernet1/1
> description TRUNK to c7201-1 router port 0/1
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 87,90
> switchport mode trunk
>
> The 4948 port for the metrolan:
>
> interface GigabitEthernet1/48
> description metroLAN to c6509 g5/2
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 90
> switchport mode trunk
>
> The 6509 port for the metrolan:
>
> interface GigabitEthernet5/2
> description metroLAN to c4948 port 1/48
> switchport
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 90
> switchport mode trunk
>
> The 6509 port to the 7206:
>
> interface GigabitEthernet3/1
> description TRUNK to c7206 router port 0/3
> switchport
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 78,90
> switchport mode trunk
>
> And the 7206/NPE-G2:
>
> interface GigabitEthernet0/3.90
> encapsulation dot1Q 90
> ip address 192.0.2.57 255.255.255.254
>
> Now, I've also tried it with the ports on each end of the metroLAN
> configured not as trunks, but simply like this:
>
> interface GigabitEthernet1/48
> description metroLAN to c6509 g5/2
> switchport access vlan 90
>
> and
>
> interface GigabitEthernet5/2
> description metroLAN to c4948 port 1/48
> switchport access vlan 90
>
> but with no luck.
>
> What gives?  Do I really need the cooperation of the metroLAN
> provider to make this work?
>
> Thanks,
> -mark
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