ZyXEL Communications IES-1000 LABEL, Apply, enable, enable, enable, enable, disable, DESCRIPTION, Config Save, Bridge Setup, (unknown-flood), (unknown-flood), (unknown-discard)

IES-1000 User’s Guide

		Figure 10-13 Bridge IGMP Snooping Record
The following table describes this screen.
		Table 10-12 Bridge IGMP Snooping Record
	LABEL	DESCRIPTION
	Bridge Setup	Click this link to go to the Bridge Setup screen.
	IGMP Snooping	Specify how long the IES-1000 is to retain entries in the group membership table.
	Timeout
	IGMP Snooping	Select enable (unknown-flood)to have the IES-1000 only forward group multicast traffic to
	Mode	ports that are members. IGMP packets for multicast groups that the IES-1000 has not
		learned are flooded to all of the IES-1000’s ports. This reduces the amount of multicast
		traffic passing through your switch.
		Select enable (unknown-discard)to have the IES-1000 only forward group multicast traffic
		to ports that are members. The IES-1000 drops IGMP packets that are destined for
		multicast groups that the IES-1000 has not learned. Selecting enable (unknown-discard)
		results in less multicast traffic passing through your switch than if you select enable
		(unknown-flood).
		Select disable to treat multicast traffic in the same manner as broadcast traffic, that is, it is
		forwarded to all ports.
	Apply	Click Apply to save your changes back to the IES-1000's volatile memory. The IES-1000
		loses these changes if it is turned off or loses power, so use the Config Save link on the
		navigation panel to the left to save your changes to the non-volatile memory when you are
		done configuring.
	ID	This field displays the location of the entry in the multicast filtering database.
	VLAN ID	This is the VLAN ID (Virtual LAN ID) for the multicast group.
	Group IP	This field displays the multicast IP address of a multicast group.
	Address
	MAC Address	This field displays the last three bytes of the MAC address to which the multicast group is
		mapped.

10-14 Getting Started Screens