Marking the DE bit
The discard eligibility (DE) bit in an FR frame determines the drop precedence of the frame at times of congestion: if the DE bit is 1, the frame is dropped preferentially.
You can set the DE bit for an FR traffic class to redefine its drop precedence.
To set the DE bit for an FR class:
Step | Command | Remarks | |
---|---|---|---|
1. Enter system view. | system-view | N/A | |
2. Configure a traffic class. |
| N/A | |
3. Configure a behavior with the action of marking the DE bit. |
| N/A | |
4. Configure a policy. |
| N/A | |
5. Apply the QoS policy to an FR class. |
| N/A | |
6. Associate the FR class with an FR interface or FR PVC. | (Method 1) Associate the FR class with an FR interface |
| Use either method or all. By default, no FR class is associated with any FR interfaces or FR PVCs. |
(Method 2) Associate the FR class with an FR PVC |
|
For more information about configuring traffic classes, traffic behaviors, and QoS policies, see HPE FlexNetwork MSR Router Series Comware 5 ACL and QoS Configuration Guide.
For more information about configuring FR classes, see HPE FlexNetwork MSR Router Series Comware 5 ACL and QoS Configuration Guide.