HP A5500 SI Switch Series Configuration Manual page 161

Configuring a PIM domain border
As the administrative core of a BIDIR-PIM domain, the BSR sends the collected RP-Set information in the
form of bootstrap messages to all routers in the BIDIR-PIM domain.
A PIM domain border is a bootstrap message boundary. Each BSR has its specific service scope. A
number of PIM domain border interfaces partition a network into different BIDIR-PIM domains. Bootstrap
messages cannot cross a domain border in either direction.
Perform the following configuration on routers that are intended to form the PIM domain border.
Follow these steps to configure a PIM domain border:
To do...
Enter system view
Enter interface view
Configure a PIM domain
border
Configuring global C-BSR parameters
In each BIDIR-PIM domain, a unique BSR is elected from C-BSRs. The C-RPs in the BIDIR-PIM domain send
advertisement messages to the BSR. The BSR summarizes the advertisement messages to form an RP-set
and advertises it to all routers in the BIDIR-PIM domain. All the routers use the same hash algorithm to get
the RP address that corresponds to specific multicast groups.
Perform the following configuration on C-BSR routers.
Follow these steps to configure global C-BSR parameters:
To do...
Enter system view
Enter public network PIM view or
VPN instance PIM view
Configure the hash mask length
Configure the C-BSR priority
NOTE:
About the hash mask length and C-BSR priority, you can configure these parameters at global
configuration level, global-scope zone level, and admin-scope zone level.
The value of these parameters configured at the global-scope zone level or admin-scope zone level
•
have preference over the global values.
If you do not configure these parameters at the global-scope zone level or admin-scope zone level,
•
the corresponding global values will be used.
For configuration of C-BSR parameters for an admin-scope zone and global-scope zone, see
"Configuring C-BSRs for each admin-scope zone and the global-scope
Use the command...
system-view
interface interface-type
interface-number
pim bsr-boundary
Use the command...
system-view
pim [ vpn-instance vpn-instance-name
]
c-bsr hash-length hash-length
c-bsr priority priority
149
Remarks
—
—
Required
By default, no PIM domain border is configured.
Remarks
—
—
Optional
30 by default
Optional
64 by default
zone."