  CONFIGURATION EDITOR

# Fragmentation

Fragmentation Method

Fragmentation Overrides

Port

Priorities

  FRF.12 UNI fragmentation provides fragmentation between DTE-DCE peers. UNI fragmentation enables more efficient use of high-speed network interfaces by reassembling the fragments at the DCE interface. FRF.12's end-to-end fragmentation and Voice Over Frame Relay (VoFR) end-to-end fragmentation procedures are used FRAD-to-FRAD and are transparent to the network.
  The choice of what fragmentation to use depends upon whether voice traffic is present, the line speed, the capabilities of the switch vendor, and the head-end FRAD.
  If voice traffic is present, voice fragmentation must be used. The VoFR fragmentation provides the ability to prioritize data. UNI fragmentation provides the ability to take advantage of high-speed network lines. The following summarizes some of the factors to consider when choosing the appropriate format:
  Voice Traffic ~use~ FRF.11 VoFR
  Different PVCs used for different traffic types ~use~ FRF.12 UNI or FRF.12 end-to-end
  Same PVC used for different traffic types ~use~ FRF.11 VoFR
  Switch Vendor supports UNI fragmentation ~use~ FRF.12 UNI
  Remote FRAD supports FRF.12 end-to-end fragmentation only ~use~ FRF.12 end-to-end
  Remote FRAD supports FRF.11 VoFR fragmentation ~use~ FRF.11 VoFR

Port

  Select the port for which you want to configure fragmentation.
  Range: any configured WAN port

Fragmentation Method

  Select the method of fragmentation you wish to use. For more information, see above.
  Range: VoFR, UNI, End-to-End, or None

Priorities

  These fields enable you to define the fragment size and Sub Channel ID for each type of priority traffic.
  Fragment Size: 32 ~ 8192
  Sub Channel ID: 0 ~ 255, or None
  The SCID must be set to a number between 0 and 255 if either of the VoFR fragmentation options are selected. Otherwise, the SCID must be set to None.
  If 0 ~ 63 is selected, a one-byte voice header is placed on each fragment.
  If 64~255 is selected, a two-byte voice header is placed on each fragment.
  Each SCID must be unique to the port level.

Fragmentation Overrides

  These fields enable you to define overrides for individual routes. To add an override, click on the Add button.