Displaying egress-queue StatisticsTo display the number of transmitted and dropped packets on the egress queues of a WRED-configuredinterface, use the following command.• Display the number of packets and number of bytes on the egress-queue profile.EXEC Privilege modeshow qos statistics egress-queueExample of the show qos statistics egress-queue CommandDell#show qos statistics egress-queueInterface Te 1/1/1Unicast/Multicast Egress Queue StatisticsQueue# Q# Type TxPkts TxBytes DroppedPkts DroppedBytes----------------------------------------------------------------------------------0 UCAST 0 0 0 01 UCAST 0 0 0 02 UCAST 0 0 0 03 UCAST 0 0 0 04 UCAST 0 0 0 05 UCAST 0 0 0 06 UCAST 0 0 0 07 UCAST 0 0 0 08 UCAST 204 13056 0 09 MCAST 0 0 0 010 MCAST 0 0 0 011 MCAST 0 0 0 012 MCAST 0 0 0 013 MCAST 0 0 0 014 MCAST 0 0 0 015 MCAST 0 0 0 016 MCAST 0 0 0 017 MCAST 0 0 0 0Dell#Pre-Calculating Available QoS CAM SpaceBefore Dell Networking OS version 7.3.1, there was no way to measure the number of CAM entries apolicy-map would consume (the number of CAM entries that a rule uses is not predictable; from 1 to 16entries might be used per rule depending upon its complexity). Therefore, it was possible to apply to aninterface a policy-map that requires more entries than are available. In this case, the system writes asmany entries as possible, and then generates an CAM-full error message (shown in the followingexample). The partial policy-map configuration might cause unintentional system behavior.%EX2YD:12 %DIFFSERV-2-DSA_QOS_CAM_INSTALL_FAILED: Not enough space in L3Cam(PolicyQos) for class 2 (TeGi 12/20) entries on portpipe 1The test cam-usage command allows you to verify that there are enough available CAM entries beforeapplying a policy-map to an interface so that you avoid exceeding the QoS CAM space and partialconfigurations. This command measures the size of the specified policy-map and compares it to theavailable CAM space in a partition for a specified port-pipe.728 Quality of Service (QoS)
