Huawei Quidway S3100 Series Operation Manual page 331

Operation Manual – IGMP Snooping
Quidway S3100 Series Ethernet Switches
Mes
sage
Sen Recei Purpo
der ver se
Apply
for
joining
a
multica
st
group,
or
respon
d to an
IGMP
query
messa
ge
Notify
the
multica
st
router
that the
host is
leaving
its
multica
st
group.
Huawei Technologies Proprietary
Chapter 1 IGMP Snooping Configuration
Switch action
If yes,
check if
the port
exists in
the MAC
Check
m ulticast
if the
group.
IP
multica
st
group
has a
corres
pondin
g MAC
multica
If not:
st
Create a MAC multicast group and
group
notify the multicast router that a
member is ready to join the multicast
group.
Add the port to the MAC multicast
group and start the aging timer of the
port.
Add all ports in the VLAN owning this
port to the forward port list of the MAC
multicast group.
Add the port to the IP multicast group.
Send group-specific
query message to the
multicast group of the
port receiving the leave
message to check if the
multicast group has any
member, and start the
corresponding query
response timer.
1-4
If yes, reset the aging timer
of the port.
If
add
If not, add the
port to the
port to the
IP
MAC multicast
m ulticast
group, reset
group.
the aging
timer of the
If
port and check
create an
if the
IP
corresponding
multicast
IP multicast
group and
group exists.
add
port to it.
If no response
received from the port
before the timer times
ou t, remove the port
fro
m
corresponding
multicast group.
If no response
received from
multicast group before
the timer times out,
notify the router to
remove this multicast
group node from the
multicast tree.
yes,
the
not,
the
is
the
MAC
is
the