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•  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: 
 
Ste
 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 } argument can 
specify the multicast groups to 
which the C-BSR is designated, in 
the range of 239.0.0.0/8. 
 
•  Configure C-BSRs for the global-scope zone 
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: 
 
Ste
 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 the 
global-scope zone. 
c-bsr global [ hash-length 
hash-length | priority priority ] * 
No C-BSRs are configured for the 
global-scope zone by default.
 
Configuring PIM-SSM 
PIM-SSM needs the support of IGMPv3. Be sure to enable IGMPv3 on PIM routers with multicast 
receivers. 
PIM-SSM configuration task list 
 
Task  Remarks 
Enabling PIM-SM  Required
 
Configuring the SSM group range  Optional
 
Configuring PIM common features  Optional