6500 QoS Config on "routed" ports

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Nov 28th, 2007
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What is the appropriate QoS config on a 6500's "routed" ports? These are ports that have the "no switchport" command on them, so any PFC QoS commands shouldn't apply(such as wrr-queue).

These "routed" links are purely inter-switch links, and dscp should be trusted on them. Does the "mls qos trust dscp" command apply for these? I surmise that mls is a PFC QoS command...

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bvsnarayana03 Wed, 11/28/2007 - 08:47
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Generally policy-maps are applied to routed interfaces, these are based on requirement. As such there is no hardening for QoS on such ports.

andrew.butterworth Wed, 11/28/2007 - 08:53
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For egress queuing its the same as on switched ports - i.e. wrr-queue commands to specify which queues marked packets are sent to. It doesn't matter whether it's a switched or routed port the queuing commands are the same.



andrew.butterworth Fri, 11/30/2007 - 13:05
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Oh no you have uncovered the big hole....

Seriously though QoS statistics for queueing on LAN switches is pretty limited. On the 6500 the command 'show queueing interface x/x' should show you counters for packets/queue. Other than that though unless you have policies configured there isn't much more you can get.



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