Multicast
Multicast Router Port
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4 283
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Multicast Router Port
A Multicast router (Mrouter) port is a port that connects to a Multicast router. The device
includes the Multicast router port(s) numbers when it forwards the Multicast streams and
IGMP/MLD registration messages. This is required so that the Multicast routers can, in turn,
forward the Multicast streams and propagate the registration messages to other subnets.
To statically configure or see dynamically-detected ports connected to the Multicast router:
STEP 1 Click Multicast > Multicast Router Port.
STEP 2 Enter some or all of following query filter criteria:
• VLAN ID equals to—Select the VLAN ID for the router ports that are described.
• IP Version equals to—Select the IP version that the Multicast router supports.
• Interface Type equals to—Select whether to display ports or LAGs.
STEP 3 Click Go. The interfaces matching the query criteria are displayed.
STEP 4 For each port or LAG, select its association type. The options are as follows:
• Static—The port is statically configured as a Multicast router port.
• Dynamic—(Display only) The port is dynamically configured as a Multicast router port
by a MLD/IGMP query. To enable the dynamic learning of Multicast router ports, go to
the IGMP Snooping page or the MLD Snooping page
• Forbidden—This port is not to be configured as a Multicast router port, even if IGMP
or MLD queries are received on this port. If Forbidden is enabled on a port, Mrouter is
not learned on this port (i.e. MRouter Ports Auto-Learn is not enabled on this port).
• None—The port is not currently a Multicast router port.
STEP 5 Click Apply to update the device.
Forward All
When Bridge Multicast Filtering is enabled, Multicast packets to registered Multicast groups
are forwarded to ports based on IGMP Snooping and MLD snooping. If Bridge Multicast
Filtering is disabled, all Multicast packets are flooded to the corresponding VLAN
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