HP VPN Firewall Appliances Network Management Configuration Guide

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into multiple admin-scoped zones. Each admin-scoped zone maintains a BSR, which serves a specific
multicast group range. The global-scoped zone also maintains a BSR, which serves all the remaining
multicast groups.
Enabling administrative scoping
Before you configure an admin-scoped zone, you must enable administrative scoping.
Perform the following configuration on all routers in the PIM-SM domain.
To enable administrative scoping:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter public network PIM view.
pim
N/A
3. Enable administrative scoping.
c-bsr admin-scope Disabled by default.
Configuring an admin-scoped zone boundary
ZBRs form the boundary of each admin-scoped zone. 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:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type interface-number N/A
3. Configure a multicast
forwarding boundary.
multicast boundary group-address { mask
| mask-length }
By default, no multicast forwarding
boundary is configured.
The group-address { mask |
mask-length } argument can
specify the multicast groups that an
admin-scoped zone serves, in the
range of 239.0.0.0/8.
Configuring C-BSRs for each admin-scoped zone and the global-scoped 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.
The following rules apply to the hash mask length and C-BSR priority:
• You can configure these parameters globally, for an admin-scoped zone, and for the global-scoped
zone.
• The values of these parameters configured for the global-scoped zone or an admin-scoped zone
have preference over the global values.
• If you do not configure these parameters for the global-scoped zone or an admin-scoped zone, the
corresponding global values are used.