R2511-HP MSR Router Series ACL and QoS Configuration Guide(V5)

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FR WRED
In the current FR QoS implementation, only WRED queues, and AF and BE queues in CBWFQ support
WRED, and EF queues in CBWFQ do not support WRED.
For more information about WRED, see "Configuring congestion avoidance."
FR QoS configuration task list
Task Remarks
Creating and configuring an FR class Required.
Configuring FRTS Optional.
Configuring FR traffic policing Optional.
Configuring FR congestion management Optional.
Configuring FR DE rule list Optional.
Configuring FR queuing Optional.
Configuring FR fragmentation Optional.
Creating and configuring an FR class
An FR class specifies a set of QoS parameters for traffic control and regulation on FR PVCs. To provide
QoS on a PVC, create an FR class, set QoS parameters such as FRTS settings in the class, and map the
class to the PVC.
You can map an FR class to PVCs by mapping it to FR interfaces or DLCIs.
• The FR class mapped to an FR interface takes effect on all PVCs on the interface.
• The FR class mapped to a DLCI takes effect only on the PVC identified by the DLCI.
An QoS-capable FR PVC selects an FR class in the following order:
• The FR class mapped to the DLCI
• The FR class mapped to the FR interface
To configure and create an FR class:
Ste
p
Command Remarks
3. Enter system view.
system-view N/A
4. Create an FR class and enter
FR class view.
fr class class-name By default, no FR class is created.
5. Return to system view.
quit N/A
6. Map the FR
class to an
FR interface
or DLCI.
(Method 1)
Map the FR
class to an FR
interface.
a. Enter FR interface view:
interface interface-type
interface-number
b. Map the FR class to the FR
interface:
fr-class class-name
Use either method or both
methods.
By default, no FR class is mapped
to any FR interface or DLCI.