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H3C Technologies H3C S10500 Series Switches User Manual

Page 170

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155

To do…

Use the command…

Remarks

Configure a multicast forwarding
boundary

multicast boundary group-address
{ mask | mask-length }

Required
By default, no multicast forwarding

boundary is configured.

NOTE:

The

group-address { mask | mask-length } parameter of the multicast boundary command can be used to

specify the multicast groups an admin-scope zone serves, in the range of 239.0.0.0/8. For more
information about the multicast boundary command, see

IP Multicast Command Reference.

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 the 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.

1.

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.
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 public network PIM view or
VPN instance PIM view

pim [ vpn-instance
vpn-instance-name ]

Configure a C-BSR for an
admin-scope zone

c-bsr group group-address { mask |
mask-length
} [ hash-length

hash-length | priority priority ] *

Required
No C-BSRs are configured for an

admin-scope zone by default.

NOTE:

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.

2.

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.
Follow these steps to configure a C-BSR for the global-scope zone:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter public network PIM view or
VPN instance PIM view

pim [ vpn-instance
vpn-instance-name ]