[c-nsp] QOS - 6509 - Next Step?

[Peter Salanki]

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Hardware assisted NBAR is not supported in 6500 at this time.  
Although the upcoming PISA for sup32 (sup720?) will be able to do it.

1 feb 2007 kl. 16.23 skrev Paul Stewart:

> Hi there...
>
> I'm working on providing priority within our core of 6509's  and  
> prefer to
> do marking via NBAR.  Is this a very bad idea in general?  We have  
> NBAR
> support in all our routers pretty much throughout...
>
> This is not to address congestion as our core and distribution has no
> congestion (referring to maxxing out link speeds etc. specifically)...
>
> So I have started working with several VLAN interfaces on our 6509  
> (layer 3
> interfaces) and have DSCP=EF for SIP/MGCP/RTP traffic like this:
>
> class-map match-any QOS-VOIP
>   match protocol sip
>   match protocol rtp
>   match protocol mgcp
> !
> !
> policy-map QOS
>   class QOS-VOIP
>    set dscp ef
>   class class-default
>    set dscp default
>
> interface Vlan104
>  description xxxxxxxxxxxxxxxxxxx
>  bandwidth 100000
>  ip address xxx.xxx.xxx.105 255.255.255.248
>  ip nbar protocol-discovery
>  service-policy input QOS
>
> On VLAN interfaces I can only apply the service policy inbound - not
> outbound:
>
> dis1-rtr-mb(config-if)#service-policy output QOS
> MQC features are not supported in output direction for this interface
>
> I don't believe this is a problem because I understand that QOS is  
> applied
> in one direction only - outbound, which on a VLAN layer3 interface  
> would
> actually mean traffic *leaving* the interface is marked .. correct??
>
> So, I've been doing a lot of reading from "End-to-End QOS Network  
> Design"
> which is a great book... I'm faced right now with too much  
> information..;)
>
> Next step would be to assign queues on the actual interfaces?  Can  
> I assign
> queues to vlan interfaces or only physical interfaces?  My problem  
> is that
> the cards are 6148 and 6248 cards so limited queues.... as I  
> understand it
> the 6248 is 1Q4T and the 6148 is 1P2Q2T?
>
> I hope someone can point me in the right direction for the "next  
> step"...;)
>
> Thanks very much,
>
> Paul
>
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Med vänliga hälsningar

Peter Salanki
Nätansvarig
Bahnhof AB (AS8473)
www.bahnhof.se
Kontor: +46855577132
Mobil: +46709174932



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