HP A8800 Configuration Manual page 150

Step
2. Enter public network PIM view
or VPN instance PIM view.
3. Enable administrative
scoping.
Configuring an admin-scoped zone boundary
The boundary of each admin-scoped zone is formed by ZBRs. Each admin-scoped zone maintains a BSR,
which serves a specific multicast group range. Multicast protocol packets (such as assert messages and
bootstrap messages) that belong to this range cannot cross the admin-scoped zone boundary.
Perform the following configuration on routers that you want to configure as a ZBR.
To configure an admin-scoped zone boundary:
Step
1. Enter system view.
2. Enter interface view.
3. Configure a multicast
forwarding boundary.
Configuring a C-BSR for each admin-scoped zone and the global-scope zone
In a network with administrative scoping enabled, group-range-specific BSRs are elected from C-BSRs.
C-RPs in the network send advertisement messages to the specific BSR. The BSR summarizes the
advertisement messages to form an RP-set and advertises it to all routers in the specific admin-scoped
zone. All the routers use the same hash algorithm to get the RP address corresponding to the specific
multicast group.
You can configure the hash mask length and C-BSR priority globally, in a admin-scoped zone, in the
global-scoped zone, or configure them in all these scopes.
The values configured in the global-scoped zone or admin-scoped zone have preference over the
•
global values.
If you do not configure these parameters in the global-scoped zone or admin-scoped zone, the
•
corresponding global values will be used.
For more information about global C-BSR parameters, see
Configure C-BSRs for each admin-scoped zone and the global-scope zone.
Configure C-BSRs for each admin-scoped zone
•
Command
pim [ vpn-instance
vpn-instance-name ]
c-bsr admin-scope
Command
system-view
interface interface-type
interface-number
multicast boundary group-address
{ mask | mask-length }
138
Remarks
N/A
Disabled by default.
An admin-scoped zone can only
serve multicast groups within the
range of 239.0.0.0 to
239.255.255.255.
Remarks
N/A
N/A
By default, no multicast forwarding
boundary is configured.
The group-address { mask |
mask-length } argument of the
multicast boundary command can
be used to specify the multicast
groups an admin-scoped zone
serves, in the range of
239.0.0.0/8.
"Configuring global C-BSR parameters."