HP FlexNetwork MSR 954 User Manual

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Configuring an RP
CAUTION:
When both IPv6 PIM-SM and IPv6 BIDIR-PIM run on the IPv6 PIM network, do not use the same RP
to provide services for IPv6 PIM-SM and IPv6 BIDIR-
PIM. Otherwise, exceptions might occur to the
IPv6 PIM routing table.
An RP can provide services for multiple or all IPv6 multicast groups. However, only one RP at a time
can forward IPv6 multicast traffic for an IPv6 multicast group.
An RP can be manually configured or dynamically elected through the BSR mechanism. For a
large-scaled IPv6 PIM network, configuring static RPs is a tedious job. Generally, static RPs are
backups for dynamic RPs to enhance the robustness and operational manageability on an IPv6
multicast network.
Configuring a static RP
If only one dynamic RP exists on a network, you can configure a static RP to avoid communication
interruption caused by single-point failures. The static RP can also avoid bandwidth waste due to
frequent message exchange between C-RPs and the BSR.
In IPv6 BIDIR-PIM, a static RP can be specified with an unassigned IPv6 address. This address
must be on the same subnet with the link on which the static RP is configured. For example, if the
IPv6 addresses of the interfaces at the two ends of a link are 1001::1/64 and 1001::2/64, you can
assign 1001::100/64 to the static RP. As a result, the link becomes an RPL.
When you configure static RPs for IPv6 BIDIR-PIM, follow these restrictions and guidelines:
•
You can configure the same static RP for different IPv6 multicast groups by using the same RP
address but different ACLs.
•
You do not need to enable IPv6 PIM for an interface to be configured as a static RP.
•
If you configure multiple static RPs for an IPv6 multicast group, only the static RP with the
highest IPv6 address takes effect.
•
The static RP configuration must be the same on all routers in the IPv6 BIDIR-PIM domain.
To configure a static RP for IPv6 BIDIR-PIM:
Step
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 static RP for
IPv6 BIDIR-PIM.
static-rp
ipv6-rp-address
bidir
[ ipv6-acl-number |
preferred
] *
By default, no static RPs exist.
Configuring a C-RP
IMPORTANT:
•
When you configure a C-RP, reserve a large bandwidth between the C-RP and other devices in the IPv6
BIDIR-PIM domain.
• As a best practice, configure C-RPs on backbone routers.
In an IPv6 BIDIR-PIM domain, if you want a router to become the RP, you can configure the router as
a C-RP. The BSR collects the C-RP information according to the received advertisement messages
from C-RPs or the auto-RP announcements from other routers. Then, it organizes the C-RP
information into the RP-set information, which is flooded throughout the entire network. The other

HP FlexNetwork MSR 954 Specifications

General

Brand	HP
Model	FlexNetwork MSR 954
Category	Network Router
Language	English