trunk to Cisco

[wilson2468]

I am trying to trunk sever 3com switches to a cisco 4503.

I have searched the forums and have done what was said and it still doesn't work.

I have:

3Com:
Created the additonal vlan (vlan2).
Set port one to be a member of both vlans.
On port one, vlanvl is untagged (native) and vlan2 is tagged (802.1Q).
All other vlan1 ports are untagged.
All other vlan2 ports are untagged.

Cisco 4503
Created the vlan and given it ip address.
Made it a trunk port.
Made vlan1 native vlan.
Allowed both vlans on the trunk.


On the Cisco the vlan is up/up, but I cannot pass traffic on vlan 2.
I have given the vlan a different name on the Cisco, but I don't think this matters.

Have I missed something?

 

[ADB100]

As you state the names are only locally significant to each switch. It sounds like what you have done is correct, however it might be worth posting the Cisco config - it should look something like:

interface FastEthernet3/1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 1
switchport trunk allowed vlan 1,2
switchport nonegotiate
!

HTH

Andy