Command Reference Guide

3Com Router 5000 Family and Router 6000 Family if-match atmclp ● 49
Command Reference
if-match atmclp
Purpose Use the if-match atmclp command to create a cell loss priority (CLP) bit match
rule defining that ATM cells with CLP bit set to 1 are matched.
Use the
if-match not atmclp command to create a CLP bit match rule defining
that ATM cells with CLP bit set to 0 are matched.
Use the
undo if-match atmclp command to delete the CLP bit match rule.
Syntax if-match [ not ] atmclp
undo if-match [ not ] atmclp
Parameters not
Not match the class.
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
View This command can be used in the following views:
■ Class view
Description 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