Enable Msdp; Manage The Source-Active Cache - Dell Force10 S4810P Configuration Manual

Enable MSDP

Enable MSDP by peering RPs in different administrative domains.
Step Task
1 Enable MSDP.
2 PeerPIM systems in different
administrative domains.
Figure 31-7. Configuring an MSDP Peer
Description
Task
View details about about a peer.
Figure 31-8. Displaying Details about a Peer
R3_E600#show ip msdp peer
Peer Addr: 192.168.0.1
Local Addr: 192.168.0.3(639)
State: Established
Timers: KeepAlive
SourceActive packet count (in/out): 8/0
SAs learned from this peer: 1
SA Filtering:
Input (S,G) filter: none
Output (S,G) filter: none
Multicast sources in remote domains are stored on the RP in the Source-active cache (SA cache). The
system does not create entries in the multicast routing table until there is a local receiver for the
corresponding multicast group.

Manage the Source-active Cache

Each SA-originating RP caches the sources inside its domain (domain-local), and the sources which it has
learned from its peers (domain-remote). By caching sources:
• domain-local receivers experience a lower join latency,
672
| Multicast Source Discovery Protocol (MSDP)
R3_E600(conf)#ip multicast-msdp
R3_E600(conf)#ip msdp peer 192.168.0.1 connect-source Loopback 0
R3_E600(conf)#do show ip msdp summary
Peer Addr Local Addr
Command Syntax
show ip msdp peer
Up/Down Time: 00:15:20
30 sec, Hold time
Command Syntax
ip multicast-msdp
ip msdp peer connect-source
State
Connect Source: Lo 0
75 sec
Command Mode
CONFIGURATION
CONFIGURATION
Source SA Up/Down
Command Mode
EXEC Privilege