Brocade Mobility Access Point System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 810)

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Internet Group Management Protocol (IGMP) is a protocol used for managing members of IP
multicast groups. The access point listens to IGMP network traffic and forwards the IGMP multicast
packets to radios on which the interested hosts are connected. On the wired side of the network,
the access point floods all the wired interfaces. This feature reduces unnecessary flooding of
multicast traffic in the network
To view a network’s IGMP configuration:
1. Select the Statistics menu from the Web UI.
2. Select System from the navigation pane (on the left-hand side of the screen). Expand a RF
Domain and select one of its connected access points.
3. Select Network and expand the menu to reveal its sub menu items.
4. Select IGMP.
FIGURE 67 Access Point - Network IGMP screen
The Group field displays the following:
The Multicast Router (MRouter) field displays the following:
VLAN Displays the group VLAN where the multicast transmission is conducted.
Group Address Displays the Multicast Group ID supporting the statistics displayed. This group ID is the
multicast address that hosts are listening to.
Port Members Displays the ports on which multicast clients have been discovered by the access point. For
example, ge1, radio1, etc.
Version Displays each listed group IGMP version compatibility as either version 1, 2 or 3.
VLAN Displays the group VLAN where the multicast transmission is conducted.
Learn Mode Displays the learning mode used by the router as either Static or PIM-DVMRP.
Port Members Displays the ports on which multicast clients have been discovered by the multicast router. For
example, ge1, radio1, etc.