366
To do… Use the command… Remarks
Enter system view
system-view —
Enter IPv6 PIM view
pim ipv6 —
Enable IPv6 administrative
scoping
c-bsr admin-scope
Required
Disabled by default
Configuring an IPv6 admin-scope zone boundary
The boundary of each IPv6 admin-scope zone is formed by ZBRs. Each admin-scope zone maintains a
BSR, which serves a specific IPv6 multicast group range. IPv6 multicast packets—such as assert
messages and bootstrap messages—that belong to this range cannot cross the admin-scope zone
boundary.
Perform the following configuration on routers that can become a ZBR.
Follow these steps to configure an admin-scope zone boundary:
To do… Use the command… Remarks
Enter system view
system-view —
Enter interface view
interface interface-type interface-
number
—
Configure an IPv6 multicast
forwarding boundary
multicast ipv6 boundary { ipv6-
group-address prefix-length |
scope { scope-id | admin-local |
global | organization-local | site-
local } }
Required
By default, no IPv6 multicast
forwarding boundary is
configured.
NOTE:
For more information about the multicast ipv6 boundary command, see the
IP Multicast Command
Reference
.
Configuring C-BSRs for each admin-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-scope
zone. All the routers use the same hash algorithm to get the RP address corresponding to the specific
multicast group.
Perform the following configuration on the routers that will work as C-BSRs in admin-scope zones.
Follow these steps to configure a C-BSR for an admin-scope zone:
To do… Use the command… Remarks
Enter system view
system-view —
Enter IPv6 PIM view
pim ipv6 —
Configure a C-BSR for an admin-
scope zone
c-bsr scope { scope-id | admin-
local | global | organization-local
| site-local } [ hash-length hash-
length | priority priority ] *
Required
No C-BSRs are configured for an
admin-scope zone by default.
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