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Cisco Bug: CSCsz08054 - traffic is not classified in the time of congestion-ME3400E

Last Modified

Jan 29, 2017

Products (1)

Known Affected Releases


Description (partial)


apply scheduling on a port-channel based on 802.1p CoS marking.  On ingress all traffic is classified using input policy and given an internal qos-group marking based on CoS marking.   On egress (since the policies cannot be applied to the port-channel) the policy  is applied to the member interfaces of the port-channel to schedule traffic based on the qos-group marking.   
The problem is that the actual scheduling behavior is, under many circumstances, not actually applied to the ports.  The 'show policy-map interface fx/x out' will show the correct information, but when in a congested state all classes are treated uniformly rather than in the manner configured.  .   

After the schedulers are applied correctly, the performance of the schedulers for our purpose is good.  However, after a reboot, the schedulers come up in a broken state.
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