H3C Technologies H3C S7500E Series Switches - Manual (Page 375)

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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