Configuring An Rp - HP MSR1002-4 Configuration Manual

Step
2. Enable
routing and enter IPv6 MRIB
view.
3. Return to system view.
4. Enter interface view.
5. Enable IPv6 PIM-SM.

Configuring an RP

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 waste of bandwidth due to
frequent message exchange between C-RPs and the BSR.
When you configure static RPs for IPv6 PIM-SM, 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 PIM-SM domain.
To configure a static RP:
Step
1. Enter system view.
2. Enter IPv6 PIM view.
3. Configure a static RP for
IPv6 PIM-SM.
Configuring a C-RP
In an IPv6 PIM-SM domain, if you want a router to become the RP, you can configure the router as a
C-RP. As a best practice, configure C-RPs on backbone routers.
The C-RPs periodically send advertisement messages to the BSR, which collects RP-set information
for the RP election. You can configure the interval for sending the advertisement messages.
The holdtime option in C-RP advertisement messages defines the C-RP lifetime for the advertising
C-RP. The BSR starts a holdtime timer for a C-RP after it receives an advertisement message. If the
BSR does not receive any advertisement message when the timer expires, it considers the C-RP
failed or unreachable.
Command
IPv6 multicast
ipv6
[
vpn-instance-name ]
quit
interface
interface-number
ipv6 pim sm
Command
system-view
ipv6
vpn-instance-name ]
static-rp
[ ipv6-acl-number | preferred ] *
multicast routing
vpn-instance
interface-type
pim [ vpn-instance
ipv6-rp-address
344
Remarks
By default, IPv6 multicast routing
is disabled.
N/A
N/A
By default, IPv6 PIM-SM is
disabled.
Remarks
N/A
N/A
By default, no static RPs exist.