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Table of Contents
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There might be a difference between information on this page and, for
example, information displayed in the MAC Group Address FDB page. Assuming
that the system is in MAC-based groups and a port that requested to join the
following Multicast groups 224.1.1.1 and 225.1.1.1, both are mapped to the same
MAC Multicast address 01:00:5e:01:01:01. In this case, there is a single entry in
the MAC Group Address FDB page, but two entries on this page.
To query for an IP Multicast group, do the following:
STEP 1 Click Configuration > Multicast > IGMP/MLD IP Group Addresses.
STEP 2 Enter some or all of following query filter criteria:
• VLAN ID—Defines the VLAN ID to query.
• Dynamic IP Group Type—Select whether the IP group address is an IPv4
or IPv6 address.
• IP Group Address—Defines the Multicast group MAC address or IP
address to query.
• Source IP Address—Defines the sender address to query.
STEP 3 Click Search. The following fields are displayed for each Multicast group:
• VLAN ID—The VLAN ID.
• IP Group Address—The Multicast group MAC address or IP address.
• Source IP Address—The sender address for all of the specified
group ports.
• Included Ports—The list of destination ports for the Multicast stream.
• Excluded Ports—The list of ports not included in the group.
• Compatibility Mode—The oldest IGMP/MLD version of registration from
the hosts the device receives on the IP group address.
MAC Group Address FDB
The device supports forwarding incoming Multicast traffic based on the
Multicast group information. This information is derived from the IGMP/MLD
packets received or as the result of manual configuration, and it is stored in the
Multicast Forwarding Database (MFDB). When a frame is received from a VLAN
that is configured to forward Multicast streams, based on MAC group addresses,
and its destination address is a Layer 2
Multicast address, the frame is forwarded to all ports that are members of the
MAC group address.
The MAC Group Address FDB page has the following functions:
• Query and view information from the MFDB, relating to a specific VLAN ID
or a specific MAC address group. This data is acquired either dynamically
through IGMP/MLD snooping or statically by manual entry.
• Add or delete static entries to the MFDB that provide static forwarding
information, based on MAC destination addresses.
• Display a list of all ports/LAGs that are a member of each VLAN ID and
MAC address group, and enter whether traffic is forwarded to it or not.
To define and view MAC Multicast groups, do the following:
STEP 1 Click Configuration > Multicast > MAC Group Address FDB.
STEP 2 Enter the parameters.
• VLAN ID —Enter the VLAN ID of the group to be displayed.
• MAC Group Address —Set the MAC address of the Multicast group to be
displayed. If no MAC Group Address is specified, the page contains all the
MAC Group Addresses from the selected VLAN.
STEP 3 Click Search, and the MAC Multicast group addresses are displayed in
the lower block.
Entries that were created both in this page and in the IP Group Address FDB
page are displayed. For those created in the IP Group Address FDB page, the IP
addresses are converted to MAC addresses.
STEP 4 Click Add to add a static MAC Group Address.
STEP 5 Enter the parameters.
• VLAN ID—Defines the VLAN ID of the new Multicast group.
• MAC Group Address—Defines the MAC address of the new Multicast group.
STEP 6 Click Apply, the MAC Multicast group is saved to the Running
Configuration file.
To configure and display the registration for the interfaces within the group,
select an address, and click Membership.
The MAC Group Address FDB page opens. Enter the following:
• VLAN ID—The VLAN ID of the Multicast group.
• MAC Group Address—The MAC address of the group.
• Interface Type—Port or LAG.
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