Huawei Quidway S5600 Series Operation Manual page 423

Operation Manual – Multicast Protocol
Quidway S5600 Series Ethernet Switches-Release 1510
Message Sender
IGMP
leave Host
message
Caution:
An IGMP-Snooping-enabled S5600 series Ethernet switch judges whether the
multicast group exists when it receives an IGMP leave packet sent by a host in a
multicast group. If this multicast group does not exist, the switch will drop the IGMP
leave packet instead of forwarding it.
Receiver Purpose
Notify the
multicast
router
and
Multicast
multicast
router
switch
and
that the
multicast
host is
switch
leaving
its
multicast
group.
Huawei Technologies Proprietary
Chapter 2 IGMP Snooping Configuration
Switch action
Multicast router and multicast
switch send IGMP specific
group query packet(s) to the
multicast group
member host sends leave
packets to check
multicast group has
members and enable the
corresponding query timer.
2-5
If no response is
received from
the port before
the timer times
out, the switch
will check
whether the port
corresponds to a
single MAC
multicast group.
If yes,
remove
correspondin
g MAC
multicast
group and IP
multicast
group
If no, remove
whose
only those
entries
if the
correspond
any
to this port in
the MAC
multicast
group,
remove
correspondin
g IP multicast
group entries
If no response is
received from
the multicast
group before the
timer times out,
notify the router
to remove this
multicast group
node from the
multicast tree
the
that
and
the