3Com Switch 8800 Advanced Software V5 Configuration Guide

MSDP Configuration Examples 623
MSDP Configuration
Examples
Example of
Configuration
Leveraging BGP Routes
Network requirements
■ Two ISPs maintains their ASs, AS 100 and AS 200 respectively. OSPF is running
within each AS, and BGP is running between the two ASs.
■ PIM-SM 1 belongs to AS 100, while PIM-SM 2 and PIM-SM 3 belong to AS
200.
■ Each PIM-SM domain has zero or one multicast source and one or more
receivers. OSPF runs within each domain to provide unicast routes.
■ MSDP peering relationships need to be established among RPs of different
PIM-SM domains leveraging BGP routes.
■ The respective Loopback 0 interfaces of Switch C, Switch D and Switch F are
configured as the C-BSR and C-RP of the respective PIM-SM domains.
■ An MSDP peering relationship needs to be established between Switch C and
Switch D through EBGP, and an MSDP peering relationship needs to be
established between Switch D and Switch F through IBGP.
Network diagram
Figure 190 Network diagram for configuration leveraging a BGP route
Clear (S, G) entries in the
MSDP cache
reset msdp sa-cache [
group-address ]
Available in user view
Clear all statistics information
of an MSDP peer
reset msdp statistics [
peer-address ]
Available in user view
To do... Use the command... Remarks
Device Interface IP address Device Interface IP address
Vlan-int101
Vlan-int102
Switch A
Switch C
Switch B
Source 1
AS 100
PIM-SM 1
PIM-SM 3
PIM-SM 2
AS 200
Loop0
Switch D
Switch E
Switch F
Switch G
Source 2
Vlan-int200
Vl
a
n
-
in
t
1
0
0
Vlan-int101
Vlan-int102
Vlan-int300
Vlan-int400
Loop0
Receiver
Receiver
Receiver
Loop0
MSDP peers