ZyXEL Communications MES-2110 manual 125, Igmp Vlan

Chapter 17 IGMP

The following table describes the labels in this screen.

Table 46 Configuration > IGMP Menu > IGMP Config

LABEL	DESCRIPTION
IGMP Snooping	Use this to enable or disable IGMP snooping.
	When IGMP is enabled, the MES-2110 forwards group multicast
	traffic only to ports that are members of that group.
IGMP VLAN Mode	Select Auto to have the MES-2110 learn multicast group
	membership information of any VLANs automatically.
	Select Fixed to have the MES-2110 only learn multicast group
	membership information of the VLAN(s) that you specify below.
IGMP Query Mode	Specifies whether or not the port is an IGMP query port. The MES-
	2110 forwards IGMP join or leave frames to an IGMP query port,
	treating the port as being connected to an IGMP multicast router
	(or server). You must enable IGMP snooping as well.
	Select Auto to have the MES-2110 use the port as an IGMP query
	port if the port received IGMP query frames recently. An auto port
	doesn’t forward any multicast group member information to its
	uplink router if the switch didn’t receive any IGMP query frames
	from the router within a period.
	Select Disable to turn this feature off for this port.
IGMP VLAN	Enter the ID of the static VLAN(s) that the MES-2110 includes in
	its learning process of multicast group membership (of the ports).
	Enter a VLAN ID between 1 and 4094.
IGMP VLAN Query	Click this to display the IGMP VLAN Query Mode screen.
Mode
Port 1-10	This shows the port numbers that you can configure individually
	using the fields described below.
	The Switch can forward multicast frames to IGMP static ports with
	or without the learning process of multicast group membership.
Immediate Leave	Use this to enable or disable this feature.
	When this is enabled on this port and the switch receives an IGMP
	version 2 leave message for this port, this port is immediately
	removed from the multicast group.
	When this is disabled on this port and the switch receives an IGMP
	version 2 leave message for this port, the Switch first uses this
	port to send a query packet to ask its multicast group if it still has
	active client requests. After one second and the Switch has not
	receive a reply packet asking for the port's IGMP report, it
	removes the port from the multicast group.
Static Query	Select Enable to stop the MES-2110 from using the port as an
	IGMP query port. The MES-2110 will not keep any record of an
	IGMP router being connected to this port.
	Select Disable to have the MES-2110 use the port as an IGMP
	query port if the port receives IGMP query frames.
Undo	Click this to restore your last saved settings.

MES-2110 User’s Guide

125