HP 6125XLG - Configuring a BSR

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An advertisement message contains a holdtime option, which defines the C-RP lifetime for the advertising
C-RP. After the BSR receives an advertisement message from a C-RP, it starts a timer for the C-RP. If the BSR
does not receive any advertisement message when the timer expires, it considers the C-RP failed or
unreachable.
To configure a C-RP:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IPv6 PIM view.
ipv6 pim [ vpn-instance vpn-instance-name ] N/A
3. Configure a C-RP to
provide services for IPv6
BIDIR-PIM.
c-rp ipv6-address [ advertisement-interval
adv-interval | { group-policy acl6-number |
scope scope-id } | holdtime hold-time | priority
priority ] * bidir
By default, no C-RP is
configured.
Configuring the maximum number of IPv6 BIDIR-PIM RPs
In an IPv6 BIDIR-PIM domain, one DF election per RP is implemented on all IPv6 PIM-enabled interfaces.
To avoid unnecessary DF elections, HP recommends not configuring multiple RPs for BIDIR-PIM.
This configuration sets a limit on the number of IPv6 BIDIR-PIM RPs. If the number of RPs exceeds the limit,
excess RPs do not take effect and can be used only for DF election rather than IPv6 multicast data
forwarding. The system does not delete these excess RPs. They must be deleted manually.
To configure the maximum number of RPs:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IPv6 PIM view.
ipv6 pim [ vpn-instance
vpn-instance-name ]
N/A
3. Configure the maximum
number of RPs.
bidir-rp-limit limit The default setting is 6.
Configuring a BSR
You must configure a BSR if C-RPs are configured to dynamically select the RP. In a network with a static
RP, this configuration task is unnecessary.
An IPv6 BIDIR-PIM domain can have only one BSR, but must have at least one C-BSR. Any router can be
configured as a C-BSR. Elected from C-BSRs, the BSR is responsible for collecting and advertising RP
information in the IPv6 BIDIR-PIM domain.
Configuring a C-BSR
IMPORTANT:
Because the BSR and other devices exchange a large amount of information in the IPv6 BIDIR-PIM domain,
reserve a large bandwidth between the C-BSR and other devices.
C-BSRs should be configured on routers on the backbone network. The BSR election process is
summarized as follows: