Configuring frame relay fragmentation
The device supports the end-to-end FRF.12 fragmentation function.
Over a low-speed frame relay links, long data frames might increase the transmission delay. The FRF.12 fragmentation function fragments long data frames into small fragments, and guarantees that the data frames are transmitted with a lower delay over a lower-speed link.
When data frames and voice frames are transmitted at the same time, long data frame transmission occupies bandwidth for a long time, and might delay the voice frames or even cause the voice frames to be dropped, affecting the voice quality. The FRF.12 fragmentation function decreases the delay of voice frames, and improves the voice quality. With the FRF.12 fragmentation function enabled, long data frames are fragmented into small fragments, and interleaved with voice frames, so that voice frames are transmitted promptly and evenly and the transmission delay is reduced.
The FRF.12 fragmentation function is mutually exclusive with FRTS configured by using the fr traffic-shaping command. For more information about FRTS, see HPE FlexNetwork MSR Router Series Comware 5 ACL and QoS Configuration Guide.
To configure frame relay fragmentation:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter interface view. | interface interface-type interface-number | N/A |
3. Enable FRF.12 fragmentation on the interface. | fr fragment [ fragment-size ] end-to-end | By default, FRF.12 fragmentation is disabled. |
![[NOTE: ]](images/note.png) | NOTE: The FRF.12 fragmentation function is not available on MFR interfaces. | |