[c-nsp] Cisco GigaSwitch with Throughput of 800 Megas or More?
Juan C. Crespo R.
jcrespo at ifxnw.com.ve
Wed Aug 3 15:18:16 EDT 2011
- Total forwarding capacity, on all ports 800 Mbps x 8 o 12 (in/out)?)
- Classification (CoS or DSCP)
- MAC address table:2048 MAC (low)
- Lv2 Switch
I guess that would be enough :)
Thanks
On 03/08/2011 12:02 p.m., Peter Rathlev wrote:
> 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. ;-)
>
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