From: Brad Kessler (bkessler@issnetworking.com)
Date: Tue Nov 25 2003 - 17:09:43 GMT-3
never done this with nortel but do it with foundry all of the time. First
and fore most you have to force the trunk mode on the Cisco box to "on".
Second on the Nortel box you need to make the port that connects to the
Cisco box force to trunk "ON" and make that port a "Tagged" member of all of
the vlans that you are trying to trunk across. Are you using just one port
or are you trying to aggregate ports between the switches. In the case that
you are, you will need to use LACP aggregation and not cisco etherchannel
(PAGP) nortel will not support the proprietary protocol. Hope this helps...
-Brad Kessler
Murali Rao writes:
> Guys,
> Can some one guide me to get dot1q trunk between a cat4507
> and nortel baystack 450T to work?
> I have configured 2 vlans(untagged members) on nortel box
> and getting a 4507 to route between these 2 vlans. The
> 802.1q trunk is shown as up and trunking on cisco switch
> but am not able to get the routing between these two vlans
> in place.
>
> Cisco config:
> interface FastEthernet3/27
> description link to switch f07
> switchport trunk encapsulation dot1q
> switchport mode trunk
> load-interval 30
> interface Vlan1
> ip address 172.16.100.1 255.255.255.0
> !
> interface Vlan20
> ip address 172.16.20.10 255.255.255.0
> !
> interface Vlan21
> ip address 172.16.21.10 255.255.255.0
> -----------------------------------------------
>
> L3#sh int fa3/27 trunk
>
> Port Mode Encapsulation Status Native
> vlan
> Fa3/27 on 802.1q trunking 1
>
> Port Vlans allowed on trunk
> Fa3/27 1-4094
>
> Port Vlans allowed and active in management domain
> Fa3/27 1,20-21,1002-1005
>
> Port Vlans in spanning tree forwarding state and not
> pruned
> Fa3/27 1,20-21,1002-1005
>
> -----------------------------------------------------
>
>
> Any help is highly appreciated.
>
> Thanks
> Murali
>
>
>
>
>
>
>
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