Content











9.3



Class-Based Weighted Fair
Queuing
 



 


9.3.10



CBWFQ queuing examples
 







In the configuration example shown in
Figure , class1 is defined by referencing access-list 101 with the
match access-group 101
command. Class1 will therefore match User Datagram Protocol (UDP)
traffic from host 10.10.10.10 to host 10.10.10.20 on ports 16382 to
20000.

Class2 is defined by referencing
access-list 102 with the
match access-group 102
command. Class2 will therefore match UDP traffic from host 10.10.10.10
to host 10.10.10.20 on ports 53000 to 56000.

The
policy-map
command creates a policy map. The configuration example in Figure
shows that
the policy map, policy1, includes two class maps:

Class1, which is configured with a
bandwidth of 3000 kbps and a queue limit of 30 packets.
Class2, which is configured with a
bandwidth of 2000 kbps. Since no queue limit is specified, the
default of 64 packets is applied.


Since neither class is configured with
the random-detect
command, the IOS will tail-drop packets if their destination queue is
full. Use the
random-detect command to
configure WRED.