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Frequent Contributor

Cat 6500 Sup 2T and 6848 line card QoS question

Hello,

I am trying to wrap my head around Cat 6500 QoS with the new Sup 2T and 6848 line card and the new more-MQC-like QoS.

I am working with a client that intends to connect some servers and even a few power users to a 6500 with Sup 2T and 6848.

I have examined the Smart Business Architecture LAN Configuration docs (6500 in Appendix D):

http://www.cisco.com/en/US/docs/solutions/SBA/August2012/Cisco_SBA_BN_LANConfigurationFilesGuide-Aug2012.pdf

and examined the 6500 Sup 2T whitepaper:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/white_paper_c11-652042.html

and the 6500 software config guide QoS section:

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/15.1SY/config_guide/sup2T/qos_overview.html

And I still have a few questions.  The use of MQC-like language for Queuing is fairly understandable as it is similar to Cat 4500 with Sup6/7.  But where I am still a little confused is Ingress classification and marking.

For example, if I have a server or an end user directly attached to a 6848 port, and I want to classify inbound traffic using ACLs, class-maps and a policy-map, do I attach both a lan-queuing service policy AND an input service policy?

For example:

int g1/1

service-policy input qos-ACCESS

service-policy type lan-queuing input p_map_2q8t

service-policy type lan-queuing output p_map_1p3q8t

Best,

NPM

1 REPLY 1
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Beginner

Hello Nick,

Not sure if you were able to do the above successfully. When I apply an input classification/marking policy, and set the dscp values of the incoming traffic, I dont see the DSCP getting applied at all.

Did you have to do anything unique to make this work?

Thanks for your help

Toor

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