Verification Example For Ip Precedence-Based Wred - Cisco 10000 Series Configuration Manual

Verifying and Monitoring Layer 3 Packet Dropping
Example 11-8
output indicates that the router classifies traffic based on the default DSCP 0 and DSCP 1, 2, 3, and 5.
Traffic must match all of these DSCP values before the router can assign the traffic to the per_dscp_class
traffic class.
Example 11-8 Displaying Sample Output from the show class-map Command
Router# show class-map per_dscp_class
Class Map match-all per_dscp_class (id 11)
Match ip
Example 11-9
command output indicates that the drop policy for the class named per_dscp_class is based on DSCP 1,
2, 3, and 5.
Example 11-9 Displaying Sample Output from the show policy-map Command
Router# show policy-map per_dscp_policy
Policy Map per_dscp_policy

Verification Example for IP Precedence-Based WRED

Example 11-10
precedence-based WRED is configured on the new-users class queue. For each precedence 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 11-10 Displaying IP Precedence-Based WRED Statistics
Router# show policy-map interface FastEthernet 3/0/0
FastEthernet3/0/0
Service-policy output: voice
Cisco 10000 Series Router Quality of Service Configuration Guide
11-36
shows sample output for the show class-map command. The show class-map command
dscp default
shows sample output for the show policy-map command. The show policy-map
Class per_dscp_class
priority
random-detect dscp-based
random-detect dscp 1 10 20 50
random-detect dscp 2 10 40 20
random-detect dscp 3 100 400 20
random-detect dscp 5 22 60 30
shows sample output for the show policy-map interface command when IP
Class-map: new-users (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 (precedence-based):
Exponential weight: 9 (1/512)
Current average queue length: 0 packets
-----------------------------------------------------------------------
TOS Min Max
precedence thres thres
-----------------------------------------------------------------------
0 2048 4096
1 2304 4096
2 2560 4096
1 2 3 5
Mark Rand-Drops
probability
1/10 10
1/10 3
1/10 0
Chapter 11 Managing Packet Queue Congestion
Tail-Drops
5
1
0
OL-7433-09