Configuring Ip Multicast Routing; Default Multicast Routing Configuration; Multicast Routing Configuration Guidelines - Cisco Catalyst 3750 Software Configuration Manual

Configuring IP Multicast Routing

CGMP is necessary because the Layer 2 switch cannot distinguish between IP multicast data packets and
IGMP report messages, which are both at the MAC-level and are addressed to the same group address.
Configuring IP Multicast Routing
These sections describe how to configure IP multicast routing:
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Default Multicast Routing Configuration

Table 31-2
Table 31-2 Default Multicast Routing Configuration
Feature
Multicast routing
PIM version
PIM mode
PIM RP address
PIM domain border
PIM multicast boundary
Candidate BSRs
Candidate RPs
Shortest-path tree threshold rate
PIM router query message interval

Multicast Routing Configuration Guidelines

To avoid misconfiguring multicast routing on your switch, review the information in these sections:
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Catalyst 3750 Metro Switch Software Configuration Guide
31-8
Default Multicast Routing Configuration, page 31-8
Multicast Routing Configuration Guidelines, page 31-8
Configuring Basic Multicast Routing, page 31-10
Configuring a Rendezvous Point, page 31-11
you want to treat the group as a sparse group)
Using Auto-RP and a BSR, page 31-21
Cisco PIM v1 devices))
Monitoring the RP Mapping Information, page 31-22
Troubleshooting PIMv1 and PIMv2 Interoperability Problems, page 31-22
shows the default multicast routing configuration.
PIMv1 and PIMv2 Interoperability, page 31-9
Auto-RP and BSR Configuration Guidelines, page 31-9
Chapter 31
(required)
(required if the interface is in sparse-dense mode, and
(required for non-Cisco PIMv2 devices to interoperate with
(optional)
Default Setting
Disabled on all interfaces.
Version 2.
No mode is defined.
None configured.
Disabled.
None.
Disabled.
Disabled.
0 kbps.
30 seconds.
Configuring IP Multicast Routing
(optional)
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