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Table of Contents
Linksys
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Dynamic—(Display only) The port is dynamically configured as a Multicast
router port by a IGMP/MLD query. To enable the dynamic learning of
Multicast router ports, go to the IGMP Snooping page.
•
Forbidden—This port is not to be configured as a Multicast router port,
even if IGMP/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).
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None—The port is not currently a Multicast router port.
STEP 5 Click Apply to update the device.
Forward All
The Forward All page enables and displays the configuration of the ports and/
or LAGs that are to receive Multicast streams from a specific VLAN. This feature
requires that Bridge Multicast filtering in the Feature Configuration page be
enabled. If it is disabled, then all Multicast traffic is flooded to ports in the device.
You can statically (manually) configure a port to Forward All, if the devices
connecting to the port do not support IGMP/MLD.
IGMP/MLD messages are not forwarded to ports defined as Forward All.
NOTE:
The configuration affects only the ports that are members of the
selected VLAN.
To define Forward All Multicast, do the following:
STEP 1 Click Configuration > Multicast > Forward All.
STEP 2 Define the following:
•
VLAN ID—The VLAN ID the ports/LAGs are to be displayed.
•
Interface Type—Define whether to display ports or LAGs.
STEP 3 Click Search. The status of all ports/LAGs are displayed.
STEP 4 Select the port/LAG that is to be defined as Forward All by using the
following methods:
•
Static—The port receives all Multicast streams.
•
Forbidden—Ports cannot receive any Multicast streams, even if IGMP/
MLD snooping designated the port to join a Multicast group.
•
None—The port is not currently a Forward All port.
STEP 5 Click Apply. The Running Configuration file is updated.
Unregistered Multicast
Multicast frames are generally forwarded to all ports in the VLAN. If IGMP/MLD
Snooping is enabled, the device learns about the existence of Multicast groups,
and monitors which ports have joined which Multicast group. Multicast groups
can also be statically configured. Multicast groups that were either dynamically
learned or statically configured are considered registered.
The device forwards Multicast frames (from a registered Multicast group) only
to ports that are registered to that Multicast group.
The Unregistered Multicast page enables handling Multicast frames that belong
to groups that are not known to the device (unregistered Multicast groups).
Unregistered Multicast frames are usually forwarded to all ports on the VLAN.
You can select a port to receive or filter unregistered Multicast streams. The
configuration is valid for any VLAN of which it is a member (or will be a member).
This feature ensures that the customer receives only the Multicast groups
requested and not others that may be transmitted in the network.
To define unregistered Multicast settings, do the following:
STEP 1 Click Configuration > Multicast > Unregistered Multicast.
STEP 2 Define the following:
•
Interface Type—Define whether to display ports or LAGs.
•
Interface Settings—Displays the forwarding status of the selected
interface. The possible values are as follows:
•
Forwarding—Enables forwarding of unregistered Multicast frames to the
selected interface.
•
Filtering—Enables filtering (rejecting) of unregistered Multicast frames to
the selected interface.
STEP 3 Click Apply. The settings are saved, and the Running Configuration
file is updated.
IGMP/MLD IP Group Addresses
The IGMP/MLD IP Group Addresses page displays the IPV4/IPV6 group address
learned from IGMP/MLD messages.