ZyXEL MI-7248 User Guide - Page 187

Application > IGMP, IP Setup

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CHAPTER 32 IGMP 32.1 IGMP IGMP (Internet Group Multicast Protocol) is a session-layer protocol used to establish membership in a multicast group. It is not used to carry user data. See RFC 1112 and RFC 2236 for information on IGMP versions 1 and 2, respectively. To open this screen, click IP Application > IGMP. Each entry in the table is automatically created when you configure a new IP domain in the IP Setup screen. See Section 10.2 on page 73. Figure 82 IGMP The following table describes the labels in this screen. Table 69 IGMP LABEL DESCRIPTION Active Select this check box to enable IGMP on the switch. Unknown Multicast Frame Index Network Version Note: You cannot enable both IGMP snooping and IGMP at the same time. Specify the action to perform when the switch receives an unknown multicast frame. Select Drop to discard the frame(s). Select Flooding to send the frame(s) to all ports. This field displays an index number of an entry. This field displays the IP domain configured on the switch. See Section 10.2 on page 73 for more information on configuring IP domains. Select an IGMP version from the drop-down list box. Choices are IGMP-v1, IGMP-v2, IGMP-v3 and None. The switch supports both IGMP version 1 (IGMP-v1), version 2 (IGMP-v2) and version 3 (IGMP-v3). At start up, the switch queries all directly connected networks to gather group membership. After that, the switch periodically updates this information. MS-7206 User's Guide 187

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MS-7206 User’s Guide
187
C
HAPTER
32
IGMP
32.1
IGMP
IGMP (Internet Group Multicast Protocol) is a session-layer protocol used to establish
membership in a multicast group. It is not used to carry user data. See RFC 1112 and RFC
2236
for information on IGMP versions 1 and 2, respectively. To open this screen, click
IP
Application > IGMP
. Each entry in the table is automatically created when you configure a
new IP domain in the
IP Setup
screen. See
Section 10.2 on page 73
.
Figure 82
IGMP
The following table describes the labels in this screen.
Table 69
IGMP
LABEL
DESCRIPTION
Active
Select this check box to enable IGMP on the switch.
Note: You
cannot
enable both IGMP snooping and IGMP at the same
time.
Unknown
Multicast
Frame
Specify the action to perform when the switch receives an unknown multicast frame.
Select
Drop
to discard the frame(s). Select
Flooding
to send the frame(s) to all ports.
Index
This field displays an index number of an entry.
Network
This field displays the IP domain configured on the switch. See
Section 10.2 on page 73
for more information on configuring IP domains.
Version
Select an IGMP version from the drop-down list box. Choices are
IGMP-v1
,
IGMP-v2
,
IGMP-v3
and
None
.
The switch supports both IGMP version 1 (
IGMP-v1
), version 2 (
IGMP-v2
) and version 3
(
IGMP-v3
). At start up, the switch queries all directly connected networks to gather group
membership. After that, the switch periodically updates this information.