[c-nsp] MPLS PE Routers for a Mobile Carrier?

Rubens Kuhl Jr. rubensk at gmail.com
Sun Aug 3 15:23:31 EDT 2008


>> 12000. ME6524 seems a good fit for this environment, J-2320/6350 could
>> be the J-land options to explore (although ISR 38x5 are their
>> counterparts at C-land, not the ME6524).
>
> QoS in PE and catalyst doesn't seem good fit to me. Unless you have
> dedicated port to each customer. But in view most all PE usages
> include customers in VLAN, in which case, to do any QoS, you
> need HQoS, which LAN cards can not do. They are cheap for
> a reason.

"mls qos vlan-based" can be turned on to do PFC-QoS on VLANs... (at
least on PFC3C, but I thought it was supported on other PFC3
releases).

HQoS is nice for building services like "25% of the bandwidth has
voice priority, if no voice traffic present you can go up to 100%, if
more than 25% is voice than only 25% will have expedite forwarding",
but if you provide simple CIR/PIR services per VLAN, differentiating
needs by different VLANs, what could be achieved by HQoS that PFC-QoS
would do only by dedicating a port ?


Rubens



Rubens


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