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How many Catalyst 3500s can I daisey chain using fiber GBICs?

I need to create a topological ring using 3524s and 3548s equipped with fiber GBICs. For example switch 1 gig port 0/2 will connect to switch 2 gig port 0/1 200 feet away then from switch 2 gig port 0/2 connect to switch 3 gig port 0/1 another 200 feet away, so on and so on. Until I have a ring all the way around a manufacturing plant and back to switch 1 gig port 0/1. What are the limitations as to the number of switches in the complete ring.


Re: How many Catalyst 3500s can I daisey chain using fiber GBICs

The limitation would be the

amount of traffic expected to flow through the gig

connecting two 3XXX switches.

You have to look at the traffic that are local to each swicth and traffic that are going to have to cross each 1 gig link

and also this would serve as back up to downstream & upstream switches if one link fails.

calculate (total 1 switch traffic - local traffic ) _ n where n is the number of

switch in the loop.

If the result is less that one gig , then its cool to connect it like

that. Hence you'll surely have a bottle neck somewhere based on the pattern of traffic flow.

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