Verifying And Monitoring Layer 3 Packet Dropping - Cisco 10000 Series Configuration Manual

Verifying and Monitoring Layer 3 Packet Dropping

Router(config-pmap)# class class1
Router(config-pmap-c)# random-detect atm-clp-based
Router(config-pmap-c)# random-detect clp 1 12 25 10
Router(config-pmap-c)# exit
Router(config-pmap)# exit
Verifying and Monitoring Layer 3 Packet Dropping
For releases prior to Cisco IOS Release 12.0(25)SX and Release 12.3(7)XI, the router maintains only
the total random and tail drop statistics for all IP precedence levels.
In Cisco IOS Release 12.0(25)SX and Release 12.3(7)XI, and later releases, the router maintains
separate WRED drop statistics for each IP precedence, DSCP, and discard-class value.
The router collects the following statistical information:
•
•
To verify and monitor packet dropping, use any of the following commands in privileged EXEC mode:
Command
Router# show interface type
slot/module/port.subinterface
Router# show policy-map policy-map-name
Router# show policy-map interface
Router# show pxf cpu queue interface
Cisco 10000 Series Router Quality of Service Configuration Guide
11-32
Current average queue length
Per-precedence random and maximum threshold packets and bytes dropped
Chapter 11
Purpose
Displays configuration information about the interface you
specify, including the current queue limit.
Displays configuration information about the policy map you
specify.
In Cisco IOS Release 12.3(7)XI and later releases, this command
shows WRED drop counts for each IP precedence, DSCP value,
and discard class.
In all releases prior to Cisco IOS Release 12.3(7)XI, this
command shows drop counts for each class.
Displays the configuration of classes configured for service
policies on all interfaces.
Displays the queuing statistics of an interface or VC.
Managing Packet Queue Congestion
OL-7433-09