Enabling embedded rp, Configuring c-rp timers globally – H3C Technologies H3C SecPath F1000-E User Manual

Page 183

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Enabling embedded RP

With the Embedded RP feature enabled, the router can resolve the RP address directly from the IPv6

multicast group address of an IPv6 multicast packets. This RP can replace the statically configured RP or
the RP dynamically calculated based on the BSR mechanism. Thus, the DR does not need to know the RP

address beforehand.
Follow these steps to enable embedded RP:

To do...

Use the command...

Remarks

Enter system view

system-view

Enter IPv6 PIM view

pim ipv6

Enable embedded RP

embedded-rp [ acl6-number ]

Optional
By default, embedded RP is
enabled for IPv6 multicast groups

in the default embedded RP

address scopes.

NOTE:

The default embedded RP address scopes are FF7x::/12 and FFFx::/12. Here “x” refers to any legal
address scope. For details of the Scope field, see

Multicast Overview of the IP Multicast Volume.

Configuring C-RP timers globally

To enable the BSR to distribute the RP-Set information within the IPv6 PIM-SM domain, C-RPs must

periodically send C-RP-Adv messages to the BSR. The BSR learns the RP-Set information from the received

messages, and encapsulates its own IPv6 address together with the RP-Set information in its bootstrap

messages. The BSR then floods the bootstrap messages to all IPv6 routers in the network.
Each C-RP encapsulates a timeout value in its C-RP-Adv messages. Upon receiving a C-RP-Adv message,

the BSR obtains this timeout value and starts a C-RP timeout timer. If the BSR fails to hear a subsequent
C-RP-Adv message from the C-RP when the timer times out, the BSR assumes the C-RP to have expired or

become unreachable.
The C-RP timers need to be configured on C-RP routers.
Follow these steps to configure C-RP timers globally:

To do...

Use the command...

Remarks

Enter system view

system-view

Enter IPv6 PIM view

pim ipv6

Configure the C-RP-Adv interval

c-rp advertisement-interval

interval

Optional
60 seconds by default

Configure C-RP timeout time

c-rp holdtime interval

Optional
150 seconds by default

NOTE:

For more information about the configuration of other timers in IPv6 PIM-SM, see

Configuring IPv6 PIM

Common Timers

.

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