Cisco 3845 - Security Bundle Router Software Manual page 758
Software configuration guide
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Configuring IP Multicast Routing
These sections describe how to configure Auto-RP:
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•
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For overview information, see the
Setting up Auto-RP in a New Internetwork
If you are setting up Auto-RP in a new internetwork, you do not need a default RP because you configure
all the interfaces for sparse-dense mode. Follow the process described in the
Existing Sparse-Mode Cloud" section on page
PIM router as the RP for the local group.
Adding Auto-RP to an Existing Sparse-Mode Cloud
This section contains some suggestions for the initial deployment of Auto-RP into an existing
sparse-mode cloud to minimize disruption of the existing multicast infrastructure.
Beginning in privileged EXEC mode, follow these steps to deploy Auto-RP in an existing sparse-mode
cloud. This procedure is optional.
Command
Step 1
show running-config
Step 2
configure terminal
Step 3
ip pim send-rp-announce interface-id
scope ttl group-list access-list-number
interval seconds
Cisco ME 3800X and 3600X Switch Software Configuration Guide
33-24
Setting up Auto-RP in a New Internetwork, page 33-24
Adding Auto-RP to an Existing Sparse-Mode Cloud, page 33-24
Preventing Join Messages to False RPs, page 33-25
Filtering Incoming RP Announcement Messages, page 33-26
"Auto-RP" section on page
33-24. However, omit Step 3 if you want to configure a
Purpose
Verify that a default RP is already configured on all PIM devices and the
RP in the sparse-mode network. It was previously configured with the ip
pim rp-address global configuration command.
This step is not required for spare-dense-mode environments.
The selected RP should have good connectivity and be available across
the network. Use this RP for the global groups (for example 224.x.x.x
and other global groups). Do not reconfigure the group address range that
this RP serves. RPs dynamically discovered through Auto-RP take
precedence over statically configured RPs. Assume that it is desirable to
use a second RP for the local groups.
Enter global configuration mode.
Configure another PIM device to be the candidate RP for local groups.
For interface-id, enter the interface type and number that identifies
•
the RP address. Valid interfaces include physical ports, port
channels, and VLANs.
For scope ttl, specify the time-to-live value in hops. Enter a hop
•
count that is high enough so that the RP-announce messages reach
all mapping agents in the network. There is no default setting. The
range is 1 to 255.
For group-list access-list-number, enter an IP standard access list
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number from 1 to 99. If no access list is configured, the RP is used
for all groups.
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For interval seconds, specify how often the announcement messages
must be sent. The default is 60 seconds. The range is 1 to 16383.
Chapter 33
Configuring IP Multicast Routing
(optional)
(optional)
(optional)
(optional)
33-6.
"Adding Auto-RP to an
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