[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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