3com S7906E 安装指导
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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.
enabled for IPv6 multicast
groups in the default embedded
RP address scopes.
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
interval
c-rp advertisement-interval
interval
interval
Optional
60 seconds by default
Configure C-RP timeout time
c-rp holdtime interval
Optional
150 seconds by default