5-14To do... Use the command... RemarksConfigure to filter imported andexported SA messagespeer peer-address sa-policy{ import | export } [ aclacl-number ]OptionalBy default, no filtering is imposedon SA messages to be received orforwarded, namely all SAmessages from MSDP peers arereceived or forwarded.Configure the minimum TTLrequired for a multicast packet tobe sent to the specified MSDP peerpeer peer-address minimum-ttlttl-valueOptionalBy default, the value of TTLthreshold is 0.Displaying and Maintaining MSDPDisplaying and maintaining MSDPTo do... Use the command... RemarksDisplay the brief information of MSDP peerstate display msdp brief Available in any viewDisplay the detailed information of MSDPpeer statusdisplay msdp peer-status[ peer-address ] Available in any viewDisplay the (S, G) state learned fromMSDP peersdisplay msdp sa-cache[ group-address | source-address |as-number ] *Available in any viewDisplay the number of sources and groupsin the MSDP cachedisplay msdp sa-count[autonomous-system-number ] Available in any viewReset the TCP connection with thespecified MSDP peer reset msdp peer peer-address Available in user viewClear the cached SA messages reset msdp sa-cache[ group-address ] Available in user viewClear the statistics information of thespecified MSDP peer without resetting theMSDP peerreset msdp statistics[ peer-address ] Available in user viewTracing the transmission path of an SA message over the networkFollow these steps to trace the transmission path of an SA message over the network:To do... Use the command... RemarksTrace the transmission path of anSA message over the networkmsdp-tracert source-address group-addressrp-address [ max-hops max-hops ][ next-hop-info | sa-info | peer-info ]*[ skip-hops skip-hops ]You can execute themsdp-tracertcommand in anyview.Trace the transmission path ofmessages sent by the multicastsource over the networkmtracert source-address [ group-address |last-hop-router-address group-address ]You can execute themtracert commandin any view.You can locate message loss and configuration errors by tracing the network path of the specified (S, G,RP) entries. Once the transmission path of SA messages is determined, correct configuration canprevent the flooding of SA messages.
