Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 2 Congestion Management Configuration
Commands
3Com Corporation
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CLP is the last bit in the fourth byte of ATM cell headers. As it can only take on 1 or 0,
setting CLP bit match rule is simple. When congestion occurs, ATM cells with CLP bit
set to 1 are more likely to be dropped than those with CLP bit set to 0.
Related command: traffic classifier.
Example
# Define a rule, setting that all ATM cells with CLP bit set to 1 are matched.
[3Com ] traffic class class1
[3Com -classifier-class1] if-match atmclp
[3Com -classifier-class1] display traffic classifier user-defined class1
User Defined Classifier Information:
Classifier: class1
Operator: AND
Rule(s) : if-match atmclp
# Define a rule, setting that all ATM cells with CLP bit set to 0 are matched.
[3Com ] traffic class class2
[3Com -classifier-class2] if-match not atmclp
[3Com -classifier-class2] display traffic classifier user-defined class2
User Defined Classifier Information:
Classifier: class2
Operator: AND
Rule(s) : if-match not atmclp
2.5.15 if-match classifier
Syntax
if-match [ not ] classifier tcl-name
undo if-match [ not ] classifier tcl-name
View
Class view
Parameter
tcl-name: Class name.
Description
Use the if-match classifier command to define class-map match rule.
Use the undo if-match classifier command to delete the class-map match rule.
When defining both logical AND and logical OR match rules for a class, you may use
this command.