Chapter 20
| Multicast Routing
Configuring Global Settings for Multicast Routing
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register-stop message, it stops sending register messages to the RP. If there are no
other sources using the shared tree, it is also torn down. Setting up the SPT requires
more memory than when using the shared tree, but can significantly reduce group
join and data transmission delays. The switch can also be configured to use SPT
only for specific multicast groups, or to disable the change over to SPT for specific
groups.
Configuring Global Settings for Multicast Routing
To use multicast routing on this router, first globally enable multicast routing as
described in this section, then specify the interfaces that will employ multicast
routing protocols (PIM-DM or PIM-SM). Note that only one multicast routing
protocol (PIM-DM or PIM-SM) can be enabled on any given interface, but both
PIMv4 and PIMv6 can be enabled on the same interface.
Enabling Multicast
Routing Globally
Use the Multicast > Multicast Routing > General page or the Multicast > IPv6
Multicast Routing > General page to enable IPv4 or IPv6 multicast routing globally
on the switch.
Parameters
These parameters are displayed:
IPv4 Multicast Routing
◆ Multicast Forwarding Status – Enables IP multicast routing.
(Default: Disabled)
IPv6 Multicast Routing
◆ IPv6 Multicast Forwarding Status – Enables IPv6 multicast routing.
(Default: Disabled)
Web Interface (IPv4)
To enable IPv4 multicast routing:
1. Click Multicast, Multicast Routing, General.
2. Enable Multicast Forwarding Status.
3. Click Apply.
Figure 516: Enabling IPv4 Multicast Routing
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