[c-nsp] Cisco GigaSwitch with Throughput of 800 Megas or More?
Peter Rathlev
peter at rathlev.dk
Wed Aug 3 12:32:06 EDT 2011
On Wed, 2011-08-03 at 11:51 -0430, Juan C. Crespo R. wrote:
> This switch will be used by one ISP, with a medium load (close to 20k
> customers)
Still not enough information. :-) Try asking yourself this:
- Total forwarding capacity, all ports (800 Mbps x 2 (in/out)?)
- QoS requirements? (Classification (CoS, DSCP?), scheduling (priority
queueing?), marking)
- STP? PVST+? Rapid-PVST+? MST?
- MAC address table size? Would it just forward between a number of
routers, or also forward customer traffic? Should it be able to hold
20k unique MAC addresses?
- Just L2 switching?
There's probably many times more questions that would be relevant, but
it's hard reading minds at a distance. ;-)
--
Peter
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