VLANs on a 3COM Superstack III

I recently had some issues where 2 of my 3300 switches in one of my stacks went bad. I'll refer to that as Stack 6; and I have Stacks 1 -

7 connected through Fiber to a Corebuilder 9000.

I replaced both of the bad switches on Stack 6 and everything seems to be working properly, with one exception. My defined VLANs don't seem to work anymore, at least not beyond the stack 6. I have defined a VLAN that several Ports are connected to. The users whose machines are in that VLAN and are connected to stack 6 can see each other. However, they can't see anything outside the VLAN, or anything within the VLAN that is not directly attached to stack 6, ie other machines in the VLAN but connected through a different stack.

Can anyone give me any advice at where to look now?

Reply to
GRaybin
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It is very easy to mess up VLAN tagging on a Superstack. It is possible to define a port to be a tagged an untagged VLAN member at the same time. So you should go and check thoroughly the trunk ports for consistency (e.g. "b p det 25"). BTW it is the VLAN ID that is important, not the Local ID.

Reply to
Manfred Kwiatkowski

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