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CB3500 to CB3500 connection

CB3500 to CB3500 connection

CB3500 to CB3500 connection

(OP)
How do I connect two CB3500 systems so they pass IP traffic between each other?

I have a central site with network presences for nets a-f defined on a CB3500.  Nets a-d are located at the central site, nets e-f are located in an adjacent building, and  connected to the central site via fiber optic between SSII3000 switches and the CB3500 at the central site.

I want to connect an additional CB3500 in the adjacent building to prepare for upgrade to GB Ethernet.  To do this, I need to be able to connect the two CB3500 systems together.  I thought that if I set up the CB3500 in the adjacent building and defined nets e-f on it, that I could connect additionall-defined e-f ports from the CB3500 in the central building.  This locks up the e-f network.

Someone said to try Q-tagging the nets between the CB3500 systems.  Do I Q-tag on both CB3500s or just one?  What other parameters must be set?

John

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