ZyXEL Communications AX Series User Manual

Chapter 15 IGMP/MLD
AX/DX/EX/PX Series User’s Guide
357
Query Interval Enter the number of seconds the Zyxel Device sends a query message to hosts to get the group
membership information.
Query Response
Interval
Enter the maximum number of seconds the Zyxel Device can wait for receiving a General Query
message. Multicast routers use general queries to learn which multicast groups have members.
Last Member
Query Interval
Enter the maximum number of seconds the Zyxel Device can wait for receiving a response to a
Group-Specific Query message. Multicast routers use group-specific queries to learn whether
any member remains in a specific multicast group.
Robustness
Value
Enter the number of times (1~7) the Zyxel Device can resend a packet if packet loss occurs due
to network congestion.
Maximum
Multicast
Groups
Enter a number to limit the number of multicast groups an interface on the Zyxel Device is
allowed to join. Once a multicast member is registered in the specified number of multicast
groups, any new IGMP or MLD join report frames are dropped by the interface.
Maximum
Multicast Data
Sources(for
IGMPv3)
Enter a number to limit the number of multicast data sources (1-24) a multicast group is allowed
to have.
Note: The setting only works for IGMPv3 and MLDv2.
Maximum
Multicast Group
Members
Enter a number to limit the number of multicast members a multicast group can have.
Fast Leave
Enable
Select this option to set the Zyxel Device to remove a port from the multicast tree immediately
(without sending an IGMP or MLD membership query message) once it receives an IGMP or MLD
leave message. This is helpful if a user wants to quickly change a TV channel (multicast group
change) especially for IPTV applications.
LAN to LAN
(Intra LAN)
Multicast Enable
Select this to enable LAN to LAN IGMP snooping capability.
Membership
Join Immediate
(IPTV)
Select this to have the Zyxel Device add a host to a multicast group immediately once the Zyxel
Device receives an IGMP or MLD join message.
Cancel
Click Cancel to exit this screen without saving.
Apply Click Apply to save your changes back to the Zyxel Device.
Table 115 Network Setting > IGMP/MLD (continued)
LABEL DESCRIPTION

ZyXEL Communications AX Series Specifications

General

Brand	ZyXEL Communications
Model	AX Series
Category	Network Router
Language	English