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Configuring Multiprotocol BGP Extensions for IP Multicast
Multiprotocol BGP Configuration Task List
IPC-358
Cisco IOS IP Configuration Guide
Step 2 Enter the show ip bgp ipv4 multicast summary EXEC command to display a summary of multicast
database information:
Router# show ip bgp ipv4 multicast summary
BGP router identifier 10.0.33.34, local AS number 34
BGP table version is 5, main routing table version 1
4 network entries and 6 paths using 604 bytes of memory
5 BGP path attribute entries using 260 bytes of memory
1 BGP AS-PATH entries using 24 bytes of memory
2 BGP community entries using 48 bytes of memory
2 BGP route-map cache entries using 32 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP activity 8/28 prefixes, 12/0 paths, scan interval 15 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.0.33.35 4 35 624 624 5 0 0 10:13:46 3
Step 3 Enter the debug ip mbgp dampening EXEC command to log the route flap dampening activity:
Router# debug ip mbgp dampening
BGP: charge penalty for 173.19.0.0/16 path 49 with halflife-time 15 reuse/suppress
750/2000
BGP: flapped 1 times since 00:00:00. New penalty is 1000
BGP: charge penalty for 173.19.0.0/16 path 19 49 with halflife-time 15 reuse/suppress
750/2000
BGP: flapped 1 times since 00:00:00. New penalty is 1000
Step 4 Enter the debug ip mbgp updates EXEC command to log the multiprotocol BGP-related information
passed in BGP Update messages:
Router# debug ip mbgp updates
BGP: NEXT_HOP part 1 net 200.10.202.0/24, neigh 171.69.233.49, next 171.69.233.34
BGP: 171.69.233.49 send UPDATE 200.10.202.0/24, next 171.69.233.34, metric 0, path 33 34
19 49 109 65000 297 1239 1800 3597
BGP: NEXT_HOP part 1 net 200.10.228.0/22, neigh 171.69.233.49, next 171.69.233.34
BGP: 171.69.233.49 rcv UPDATE about 222.2.2.0/24, next hop 171.69.233.49, path 49 109
metric 0
BGP: 171.69.233.49 rcv UPDATE about 131.103.0.0/16, next hop 171.69.233.49, path 49 109
metric 0
BGP: 171.69.233.49 rcv UPDATE about 206.205.242.0/24, next hop 171.69.233.49, path 49 109
metric 0
Step 5 Enter the show ip mpacket quality EXEC command to display the quality of Real-Time Transport
Protocol (RTP) data based on packets captured in the IP multicast cache header buffer:
Router# show ip mpacket 224.2.163.188 quality
Calculating RTP data quality for 224.2.163.188
Session: UO Presents KKNU New Country
Source: 128.223.83.27 (sand.uoregon.edu), Port: 23824
Packets received: 83, lost: 5, loss percentage: 5.6%
Packets misordered: 7, average loss gap: 0
Multiprotocol BGP Configuration Examples
This section provides the following multiprotocol BGP configuration examples: