156
Step Command
Remarks
mask-length
}
configured.
The
group-address
{
mask
|
mask-length
} argument can
specify the multicast groups that
an admin-scope zone serves, in
the range of 239.0.0.0/8.
Configuring C-BSRs for each admin-scope 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-scope zone. All routers use the same hash algorithm to get the RP address
corresponding to the specific multicast group.
Configure C-BSRs for each admin-scope zone and the global-scope zone.
•
Configure C-BSRs for each admin-scope zone:
Perform the following configuration on the routers that you want to configure as C-BSRs in
admin-scope zones.
To configure a C-BSR for an admin-scope zone:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter public network PIM
view or VPN instance PIM
view.
pim
[
vpn-instance
vpn-instance-name
]
N/A
3.
Configure a C-BSR for an
admin-scope zone.
c-bsr group
group-address
{
mask
|
mask-length
}
[
hash-length
hash-length
|
priority
priority
] *
No C-BSRs are configured for an
admin-scope zone by default.
The
group-address
{
mask
|
mask-length
} parameter of the
c-bsr group
command can
specify the multicast groups the
C-BSR serves, in the range of
239.0.0.0/8.
•
Configure C-BSRs for the global-scope zone:
The following rules apply to the hash mask length and C-BSR priority:
{
You can configure the hash mask length and C-BSR priority globally, for a admin-scope
zone, and for the global scope zone.
{
The values of these parameters configured for the global scope zone or an admin-scope
zone have preference over the global values.
{
If you do not configure these parameters for the global scope zone or an admin-scope zone,
the corresponding global values are used.
For configuration of global C-BSR parameters, see "
Configuring the global C-BSR parameters
Perform the following configuration on the routers that you want to configure as C-BSRs in the
global-scope zone.
To configure a C-BSR for the global-scope zone:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter public network PIM
view or VPN instance PIM
pim
[
vpn-instance
N/A
