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VLAN set to IGMPv2
IGMPv3 messages from the uplink router, are discarded. If the VLAN receives
an IGMPv2 REPORT/LEAVE from a GE interface or PON subscriber port,
the v2 message is processed but the IGMPv3 QUERYs continue to be
transmitted from the interface towards the subscriber.
IGMPv3 messages from the subscriber port are discarded and v2 General
Queries are sent every query cycle. Only the packets that match the operating
IGMP version are processed.
VLAN set to IGMPV3
If the VLAN receives an IGMPv2 message from the uplink router or GE or
PON subscriber port, it is discarded. Only the packets that match the operating
IGMP version are processed.
However, if a v2 report is received on an xDSL port, the xDSL interface
operation mode for the port changes from IGMPv3 to IGMPv2. In the absence
of v2 REPORTs, the interface transitions back to v3.
The IGMP version of the IGMP Query must match the provisioned VLAN setting in
the associated IGMP profile if the version setting is set to either “v2” or “v3”. If there is
a chance that a v2 querier may win an election upstream, use auto mode.
If there are mixed v2 and v3 hosts on GPON or Ethernet ports, use v2 for the IGMP
version setting.
Video Services supports IGMP Snoop for both IGMPv2 and IGMPv3 protocols
simultaneously coming from different ports.
Video Services supports IGMP Snoop for both IGMPv2 and IGMPv3 clients on the
same VLAN, providing services to both.
IGMPv3 provides the ability for a host to selectively request or filter traffic from
individual sources within a multicast group.
For IGMPv3 operation, only 1 source address per multicast group per VLAN is
supported.
Source-specific group records received within a v3 Report are processed if the following
conditions are met:
The VLAN operating version is IGMPv3.
The subscriber facing interface operating version is IGMPv3.
Only one source is specified in the group record.
The multicast address in the group record is within the provisioned SSM range.