Users Guide

Displaying WRED Drop Statistics
To display WRED drop statistics, use the following command.
• Display the number of packets Dell Networking OS the WRED prole drops.
EXEC Privilege mode
show qos statistics wred-profile
Example of the show qos statistics wred-profile Command
Dell#show qos statistics wred-profile
Interface Te 1/1
Drop-statistic Dropped Pkts
Green 51623
Yellow 51300
Out of Profile 0
Dell#
Displaying egress–queue Statistics
To display the number of transmitted and dropped packets and their rate on the egress queues of an interface, use the following command:
• Display the number of packets and number of bytes on the egress-queue prole.
EXEC Privilege mode
show qos statistics egress-queue
Example of show qos statistics egress-queue Command
Dell#show qos statistics egress-queue tengigabitethernet 1/1
Interface Te 1/1
Unicast/Multicast Egress Queue Statistics
Queue# Q# Type TxPkts TxPkts/s TxBytes TxBytes/s DroppedPkts DroppedPkts/s DroppedBytes DroppedBytes/s
-----------------------------------------------------------------------------------------------------------------------------
0 UCAST 0 0 0 0 0 0 0 0
1 UCAST 0 0 0 0 0 0 0 0
2 UCAST 0 0 0 0 0 0 0 0
3 UCAST 1708252734 2340972 874625399808 1198000301 1357413570 0 694995747840 0
4 UCAST 0 0 0 0 0 0 0 0
5 UCAST 0 0 0 0 0 0 0 0
6 UCAST 0 0 0 0 0 0 0 0
7 UCAST 0 0 0 0 0 0 0 0
8 UCAST 0 0 0 0 0 0 0 0
9 UCAST 1132 1 143063 217 0 0 0 0
10 MCAST 0 0 0 0 0 0 0 0
11 MCAST 0 0 0 0 0 0 0 0
12 MCAST 0 0 0 0 0 0 0 0
13 MCAST 0 0 0 0 0 0 0 0
14 MCAST 0 0 0 0 0 0 0 0
15 MCAST 0 0 0 0 0 0 0 0
16 MCAST 0 0 0 0 0 0 0 0
17 MCAST 0 0 0 0 0 0 0 0
18 MCAST 0 0 0 0 0 0 0 0
19 MCAST 0 0 0 0 0 0 0 0
Dell#
Pre-Calculating Available QoS CAM Space
Before Dell Networking OS version 7.3.1, there was no way to measure the number of CAM entries a policy-map would consume (the
number of CAM entries that a rule uses is not predictable; from 1 to 16 entries might be used per rule depending upon its complexity).
Therefore, it was possible to apply to an interface a policy-map that requires more entries than are available. In this case, the system writes
Quality of Service (QoS)
725