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Troubleshooting tips:
1. Make sure that the configuration doesn't result in less than 1 Kbps in any of the
2. Verify that there will not be any buffer issues on any interface due to the new
3. If the configuration fails for only one interface and succeeds for other interfaces,
Packets getting dropped for a class when CBQ enabled
Symptom: More number of packets will be dropped for a particular class.
Problem description: When CBQ is enabled, Class level RED will be functioning to ensure that
the class won't exceed the allowed Committed Rate. RED values are calculated based on the
CBQ values and the RED percentage values configured. If the values are not large enough to
hold the traffic, then it may lead to excessive packet loss.
Troubleshooting
mapped interfaces.
configuration.
then un-map the policy-map from that interface. Clone the policy-map and service
it to that interface and modify the CBQ parameters in the actual policy-map.
Chassis QoS troubleshooting
August 2013
253
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Table of Contents
Troubleshooting
