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3com 8807 User Guide

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MSDP Configuration Examples
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Locating information loss and reducing configuration faults can be realized by 
tracing the network path of the specified (S, G, RP) entries. After the transmission 
path of SA messages is determined, the overflow of SA messages can be avoided 
by the correct configuration.
MSDP Configuration 
Examples
Configuring Static RPF 
Peers
Network requirements
In the following network environment shown in Figure 9-3, four 3Com Switch 
8800 Family series routing switches are in the different PIM-SM domains with no 
BGP or MBGP running among them.
To enable Switch D to receive the specified source information from PIM-SM 
domains 1, 2 and 3, you can configure static RPF peers with the parameter 
rp-policy.
After the configuration is complete, Switch D will only receive SA messages 
permitted by the corresponding filtering policy from its static RPF peers.
Network diagram
Figure 116   Configuring static RPF peers
Configuration procedure
The following configuration is made on Switch D.
# Configure Switch A to be a static RPF peer of Switch D.
PIM-SM
Domain 3
SA
SwitchC
10.25.1.1
PIM-SM
Domain 4
SwitchD
Vlan-interface30
PIM-SM
Domain 1
SwitchA
10.10.1.1
PIM-SM
Domain 2
SwitchB
10.21.1.1
Static RPF peer
Vlan-interface10
Vlan-interface20
SA
SA
Static RPF peer
Static RPF peer
Static RPF peer
PIM-SM
Domain 3
SA
SwitchC
10.25.1.1
PIM-SM
Domain 4
SwitchD
Vlan-interface30
PIM-SM
Domain 1
SwitchA
10.10.1.1
PIM-SM
Domain 2
SwitchB
10.21.1.1
Static RPF peer
Vlan-interface10
Vlan-interface20
SA
SA
Static RPF peer
Static RPF peer
Static RPF peer