1294 CHAPTER 75: M ULTICAST VPN C ONFIGURATIONEnabling Switch-GroupReuse LogFor a given VPN, if the number of private network multicast streams to beswitched to switch-MDTs exceeds the number of addresses in theswitch-group-pool, the VPN instance on the source-side PE device can reuse theaddresses in the address pool. By enabling the switch-group reuse log function,you can have the address reuse information logged.Follow these steps to enable the switch-group reuse log function:Displaying andMaintaining MD-VPNConfigure the address rangeof the switch-group-pool andthe switching conditionsmulticast-domainswitch-group-poolswitch-group-pool { mask |mask-length } [ thresholdthreshold-value | aclacl-number ] *RequiredBy default, noswitch-group-pool isconfigured and multicasttraffic is never switched to aswitch-MDT.Configure the MDT switchingdelaymulticast-domainswitch-delay switch-delayOptional5 seconds by defaultConfigure the backward MDTswitching delaymulticast-domainholddown-time intervalOptional60 seconds by defaultTo do... Use the command... RemarksTo do... Use the command... RemarksEnter system view system-view -Enter VPN instance view ip vpn-instancevpn-instance-name-Enable the switch-group reuselog functionmulticast-domain logswitch-group-reuseRequiredDisabled by defaultTo do... Use the command... RemarksView the share-groupinformation of the specifiedVPN instance in the MDdisplay multicast-domainvpn-instancevpn-instance-nameshare-groupAvailable in any viewView the switch-groupinformation received by thespecified VPN instance in theMDdisplay multicast-domainvpn-instancevpn-instance-nameswitch-group receive [ brief| [ active | groupgroup-address | sendersource-address |vpn-source-address [ mask{ mask-length | mask } ] |vpn-group-address [ mask{ mask-length | mask } ] ] * ]Available in any viewView the switch-groupinformation sent by thespecified VPN instance in theMDdisplay multicast-domainvpn-instancevpn-instance-nameswitch-group send [ groupgroup-address | reuse interval| vpn-source-address [ mask{ mask-length | mask } ] |vpn-group-address [ mask{ mask-length | mask } ] ] *Available in any view
