H3C Technologies H3C S12500 Series Switches - Manual (Page 408)

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Configuring an IPv6 admin-scoped zone boundary
The boundary of each IPv6 admin-scoped zone is formed by ZBRs. Each admin-scoped zone maintains
a BSR to provide services for multicast groups with a specific Scope field in their group addresses.
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 IPv6 admin-scoped zone boundary:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure an IPv6 multicast
forwarding boundary.
multicast ipv6 boundary
{ ipv6-group-address prefix-length
| scope { scope-id | admin-local |
global | organization-local |
site-local } }
By default, no multicast forwarding
boundary is configured.
Configuring C-BSRs for IPv6 admin-scoped zones
In a network with IPv6 administrative scoping enabled, BSRs are elected from C-BSRs specific to different
Scope field values. C-RPs in the network send advertisement messages to a specific BSR. The BSR
summarizes the advertisement messages to form an RP-set and advertises it to all routers in a specific
admin-scoped zone. All the routers use the same hash algorithm to get the RP address corresponding to
a specific IPv6 multicast group.
You can configure the hash mask length and C-BSR priority globally and in an IPv6 admin-scoped zone.
• The values configured in the IPv6 admin-scoped zone have preference over the global values.
• If you do not configure these parameters in the IPv6 admin-scoped zone, the corresponding global
values will be used.
For configuration of global C-BSR parameters, see " Configuring C-BSR parameters globally ."
Perform the following configuration on the routers that you want to configure as C-BSRs in IPv6
admin-scoped zones.
To configure a C-BSR for an IPv6 admin-scoped zone:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IPv6 PIM view. pim ipv6 N/A
3. Configure a C-BSR for an IPv6
admin-scoped zone.
c-bsr scope { scope-id |
admin-local | global |
organization-local | site-local }
[ hash-length hash-length | priority
priority ] *
No C-BSRs are configured for an
IPv6 admin-scoped zone by
default.