Frame-Relay Fragment Command (Map-Class); Frame-Relay Fragment End-To-End Command (Interface) - Cisco 10000 Series Configuration Manual

Chapter 16 Fragmenting and Interleaving Real-Time and Nonreal-Time Packets

frame-relay fragment Command (Map-Class)

To enable the fragmentation of Frame Relay frames on a Frame Relay map class, use the frame-relay
fragment command in map-class configuration mode. To disable Frame Relay fragmentation, use the
no form of the command. By default, fragmentation is disabled.
frame-relay fragment fragment_size
no frame-relay fragment fragment_size
Syntax Description
fragment_size
frame-relay fragment Command History
Cisco IOS Release
Release 12.0(23)SX
Release 12.2(27)SBB
Release 12.2(31)SB2
Usage Guidelines for the frame-relay fragment Command
Frame Relay fragmentation is enabled on a per-PVC basis. Before enabling Frame Relay fragmentation,
you must first associate a Frame Relay map class with a specific data-link connection identifier (DLCI),
and then enter map-class configuration mode and enable or disable fragmentation for that map class.
All of the fragments of a Frame Relay frame except the last one have a payload size that is equal to the
fragment size. The last fragment has a payload that is less than or equal to the fragment size.

frame-relay fragment end-to-end Command (Interface)

To enable the fragmentation of Frame Relay frames on an interface, use the frame-relay fragment
end-to-end command in interface configuration mode. To disable Frame Relay fragmentation, use the
no form of the command.
frame-relay fragment fragment_size end-to-end
no frame-relay fragment fragment_size end-to-end
Syntax Description
fragment_size
OL-7433-09
Specifies the number of payload bytes from the original Frame Relay frame
that go into each fragment. This number excludes the Frame Relay header
of the original frame. Valid values are from 16 to 1600 bytes. However, the
minimum supported fragment size is 44 bytes. The default is 53 bytes.
Description
The frame-relay fragment command was introduced on the PRE1.
This command was introduced on the PRE2.
This command was introduced on the PRE3.
Specifies the number of payload bytes from the original Frame Relay frame
that go into each fragment. This number excludes the Frame Relay header
of the original frame. Valid values are from 16 to 1600 bytes. There is no
default fragment size.
You must specify the fragment_size. If you do not, an error message
Note
displays.
Cisco 10000 Series Router Quality of Service Configuration Guide
FRF.12 Fragmentation
16-41