Verification Example For Discard-Class-Based Wred - Cisco 10000 Series Configuration Manual

Chapter 11 Managing Packet Queue Congestion

Verification Example for Discard-Class-Based WRED

Example 11-11
discard-class-based WRED is configured on the vlan1 class queue. For each discard-class level, the
output indicates the minimum and maximum thresholds, the mark probability value, the number of
packets dropped using RED, and the number of packets dropped using tail drop.
Example 11-11 Displaying Discard-Class-Based WRED Statistics
Router# show policy-map interface GigabitEthernet 1/0/0
GigabitEthernet1/0/0
Service-policy output: bronze
OL-7433-09
3 2816 4096
4 3072 4096
5 3328 4096
6 3584 4096
7 3840 4096
shows sample output for the show policy-map interface command when
Class-map: vlan1 (match-all)
0 packets, 0 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: access-group 101
Output queue: 0/128; 0/0 packets/bytes output, 0 drops
Bandwidth: 47 kbps (Weight 0)
Random-detect (discard-class-based):
Exponential weight: 9 (1/512)
Current average queue length: 0 packets
---------------------------------------------------------------
Discard Min Max
class thres thres
---------------------------------------------------------------
0 10 100
1 100 200
2 2560 4096
3 2816 4096
4 3072 4096
5 3328 4096
6 3584 4096
7 3840 4096
Verifying and Monitoring Layer 3 Packet Dropping
1/10 0
1/10 5
1/10 0
1/10 2
1/10 0
Mark Rand-Drops
probability
1/40 2
1/40 15
1/10 0
1/10 0
1/10 0
1/10 0
1/10 0
1/10 0
Cisco 10000 Series Router Quality of Service Configuration Guide
0
1
0
0
0
Tail-Drops
100
0
0
0
0
0
0
0
11-37