ZyXEL Communications ES-100, User Manual

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Chapter 17 IGMP
MES-2110 User’s Guide
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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
Mode Click this to display the IGMP VLAN Query Mode screen.
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.