Enterasys Networks XSR CLI frame-relay fragment, map-class frame-relay

Frame Relay Map Class Commands
XSR CLI Reference Guide 9-99
frame-relay fragment
ThiscommandspecifiestheFRF.12end‐to‐endfragmentsizeforaFrameRelaymap‐class.
Fragmentsizeisdefinedinbytes.Itspecifiesthenumberofpayloadbytesfromtheoriginalframe
thatwillgointoeachfragment.Thetransmittedfragmentwillincludeeightadditionalbytesfrom
headers(6)andCRC(2).
Syntax
frame-relay fragment bytes
Syntax of the “no” Form
ThenocommanddisablesFRF.12end‐to‐endfragmentation:
no frame-relay fragment
Mode
MapClassconfiguration:XSR(config-map-class)#
Default
Fragmentationisdisabled
Example
Thefollowingexamplecreatesthemapclassslowlinkwithfragmentationsetat53bytes:
XSR(config)#map-class frame-relay slowlink
XSR(config-map-class<slowlink>)#frame-relay fragment 53
XSR(config-map-class<slowlink>)#service-policy frf12
map-class frame-relay
ThecommandselectsasupportedFrameRelaymapclassandgivesitamnemonicnamethatcan
bereferencedinFrameRelayconfiguration.
Map-class frame-relaystartsconfigurationofamap‐classprofilewithauser‐specificname.
Whenamap‐classcommandisentered,theCLIentersMap‐Classconfigurationmode,changing
theCLIprompttoconfig-map-classwhereyoucanentermap‐classspecificvalues.
Syntax
map-class [frame-relay | dialer] map-class-name
Note: For proper operation of fragmentation, QOS is required to classify a service-policy which will
define a high priority queue. The queue must send frames no larger than the fragment size or
fragmentation will also be applied to high priority queue data and latency will grow, defeating the
primary purpose of FRF.12 fragmentation.
bytes Sizeofframetopassunfragmented.
frame-relay SetsaFrameRelaymapclass.