H3C Technologies H3C SecPath F1000-E - Manual (Page 185)

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NOTE:
Since a large amount of information needs to be exchanged between a BSR and the other devices in the
IPv6 PIM-SM domain, a relatively large bandwidth should be provided between the C-BSR and the other
devices in the IPv6 PIM-SM domain.
Configuring an IPv6 PIM domain border
As the administrative core of an IPv6 PIM-SM domain, the BSR sends the collected RP-Set information in
the form of bootstrap messages to all routers in the IPv6 PIM-SM domain.
An IPv6 PIM domain border is a bootstrap message boundary. Each BSR has its specific service scope.
A number of IPv6 PIM domain border interfaces partition a network into different IPv6 PIM-SM domains.
Bootstrap messages cannot cross a domain border in either direction.
Perform the following configuration on routers that can become an IPv6 PIM domain border.
Follow these steps to configure an IPv6 PIM border domain:
To do... Use the command... Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Configuring an IPv6 PIM domain
border
pim ipv6 bsr-boundary
Required
No IPv6 PIM domain border is
configured by default
Configuring C-BSR parameters globally
In each IPv6 PIM-SM domain, a unique BSR is elected from C-BSRs. The C-RPs in the IPv6 PIM-SM domain
send advertisement messages to the BSR. The BSR summarizes the advertisement messages to form an
RP-set and advertises it to all routers in the IPv6 PIM-SM domain. All the routers use the same Hash
algorithm to get the RP address corresponding to specific IPv6 multicast groups.
Perform the following configuration on C-BSR routers.
Follow these steps to configure C-BSR parameters globally:
To do... Use the command... Remarks
Enter system view system-view —
Enter IPv6 PIM view pim ipv6 —
Configure the Hash mask length c-bsr hash-length hash-length
Optional
126 by default
Configure the C-BSR priority c-bsr priority priority
Optional
64 by default
Configuring C-BSR timers
The BSR election winner multicasts its own IPv6 address and RP-Set information throughout the region that
it serves through bootstrap messages. The BSR floods bootstrap messages throughout the network at the
interval of BS (BSR state) period. Any C-BSR that receives a bootstrap message retains the RP-set for the