Brocade TurboIron 24X Series Configuration Guide - Manual (Page 868)

834 Brocade TurboIron 24X Series Configuration Guide
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Multicast Source Discovery Protocol (MSDP)
The connect-source loopback <num> parameter specifies the loopback interface you want to use
as the source for sessions with the neighbor.
NOTE
It is strongly recommended that you use the connect-source loopback <num> parameter when
issuing the msdp-peer command. If you do not use this parameter, the Layer 3 Switch uses the
subnet interface configured on the port.
Also, make sure the IP address of the connect-source loopback is the same as the source IP address
used by the MSDP router, the PIM-RP, and the BGP router.
The commands in the following example add an MSDP neighbor and specify a loopback interface
as the source interface for sessions with the neighbor. By default, the Layer 3 Switch uses the
subnet address configured on the physical interface where you configure the neighbor as the
source address for sessions with the neighbor.
TurboIron(config)#interface loopback 1
TurboIron(config-lbif-1)#ip address 10.9.9.9/32
TurboIron(config-lbif-1)#exit
TurboIron(config)#router msdp
TurboIron(config-msdp-router)#msdp-peer 10.2.2.99 connect-source loopback 1
Designating an interface IP address as
the RP IP address
When an RP receives a Source Active message, it checks its PIM Sparse multicast group table for
receivers for the group. If it finds a receiver, the RP sends a Join message for that receiver back to
the RP that originated the Source Active message. The originator RP is identified by its RP address.
By default, the IP address included in the RP address field of the SA message is the IP address of
the originating RP. Beginning with this release, an SA message can use the IP address of any
interface on the originating RP. (The interface is usually a loopback interface.)
To designate an interface IP address to be the IP address of the RP, enter commands such as the
following:
TurboIron(config)#interface loopback 2
TurboIron(config-lbif-2)#ip address 10.2.1.99/32
TurboIron(config)#router msdp
TurboIron(config-msdp-router)#originator-id loopback 2
TurboIron(config-msdp-router)#exit
Syntax: [no] originator-id <type> <number>
The originator-id parameter instructs MSDP to use the specified address as the IP address of the
RP in an SA message. This address must be the address of the interface used to connect the RP to
the source. There are no default originator-ids.
The <type> parameter indicates the type of interface used by the RP. Ethernet, loopback and
virtual routing interfaces (ve) can be used.
The <number> parameter specifies the interface number (for example: loopback number, port
number or virtual routing interface number.)