Configuring Connection Between Msdp Peers - 3Com 7757 Configuration Manual

488 C 48: MSDP C
HAPTER
Configuration
Prerequisites
Configuring MSDP Basic
Functions
Configuring
Connection between
MSDP Peers
ONFIGURATION
whose connection is in the UP state will be selected as the active static RPF
peer.
Before configuring basic MSDP functions, you need to configure:
A unicast routing protocol
■
Basic functions of PIM-SM
■
Basic functions of BGP
■
Table 384 Configure MSDP basic functions
Operation
Enter system view
Enable IP multicast
routing
Enable MSDP function
and enter MSDP view
Create an MSDP peer
connection
Configure a static RPF
peer
n
Enable BGP or MBGP on a MSDP-enabled router. You are recommended to
■
assign the same address for a BGP peer or MBGP peer as the MSDP peer on a
router.
If a router interface serves as one end of a MSDP peer and BGP peer
■
simultaneously, you need to configure the same IP address for both the MSDP
peer and the BGP peer.
An AS may contain multiple MSDP peers. To avoid SA flooding between the MSDP
peers, you can use the MSDP mesh mechanism to improve traffic. When multiple
MSDP peers are fully connected with one another, these MSDP peers form a mesh
group. When an MSDP peer in the mesh group receives SA messages from outside
the mesh group, it sends them to other members of the group. On the other
hand, a mesh group member does not perform RPF check on SA messages from
within the mesh group and does not forward the messages to other members of
the mesh group. This avoids SA message flooding since it is unnecessary to run
Command
system-view
multicast routing-enable
msdp
peer peer-address
connect-interface
interface-type interface-number
static-rpf-peer peer-address
[ rp-policy ip-prefix-name ]
Description
-
Required
Other multicast configurations
do not take effect until multicast
routing is enabled.
Required
Enable MSDP
Required
To establish an MSDP peer
connection, you must configure
the parameters on both peers.
The peers are identified by an
address pair (the address of the
interface on the local router and
the IP address of the remote
MSDP peer).
Optional
For an area containing only one
MSDP peer, if BGP or MBGP
does not run in this area, you
need to configure a static RPF
peer.