1722 CHAPTER 91: F RAME R ELAY QOS CONFIGURATIONdivided fragments alternately. In this way, voice packets can be processed timelyand smoothly and delay can be reduced.Follow these steps to configure Frame Relay fragmentationn ■ After configuration, associate the Frame Relay PVC where fragmentation is tobe applied to this Frame Relay class, and enable FRTS to have frame relayfragmentation take effect.■ MFR interfaces do not support FRF.12 fragmentation. If the interfaces at twoends of a connection are MFR interfaces, the configuration of FRF.12fragmentation does not work. Packets are sent out either interface withoutfragmentation and can be received by the connected interface. In addition, theconnected interface can be pinged. If the local MFR interface is connected to aserial interface encapsulated with FR, FRF.12 fragmentation does not work atthe local end and packets are sent out without fragmentation. On theconnected interface, however, FRF. 12 can work.Displaying andMaintaining FrameRelay QoSAfter the above configuration, execute display commands in any view to displaythe running of the frame relay after configuration and to verify the effect of theconfiguration.Follow these steps to display and maintain Frame Relay QoS:To do... Use the command... RemarksEnter system view system-view -Enter Frame Relay class view fr class class-name -Enable Frame Relayfragmentation functionfragment [ fragment-size ] OptionalBy default, frame relayfragmentation function isdisabled.To do... Use the command...Display information on FR class to interface map,including DLCIs of interfaces, subinterfaces on theinterfaces and their DLCIs.display fr class-map { fr-classclass-name | interface interface-typeinterface-number }Display contents of the DE rule list display fr del [ list-number ]Display configuration and statistics information of FRQoSdisplay fr pvc-info [ interfaceinterface-type interface-number ][ dlci-number ] ]Display the information about the configured FrameRelay routedisplay fr switch-table { all | nameswitch-name | interface interface-typeinterface-number }Display information about applying CBQ on theinterfacedisplay qos policy interface[ interface-type interface-number [ dlcidlci-number [ outbound ] | inbound |outbound ] ]Display the information about the PVC PQ on theFrame Relay interfacedisplay qos pvc-pq interface[ interface-type interface-number ]Display information about Frame Relay fragmentation display fr fragment-info [ interfaceinterface-type interface-number ][ dlci-number ]
