H3C S7500 Series Operation Manual page 441

Operation Manual – Multicast
H3C S7500 Series Ethernet Switches
Messag
e
IGMP
group-sp
ecific
query
message
IGMP
host
report
message
Sen Receiv Purpos
der er
Query if
a
Multi
specific
cast Multicas
IGMP
route t
multica
r and member
st
multi
switch
group
cast and
contain
switc host
s any
h
membe
r
Apply
for
joining
a
multica
st
group,
or
Host Multicas
respon
t router
d to an
and
IGMP
multicas
query
t switch
messag
e
Chapter 3 IGMP Snooping Configuration
Action of the multicast member switch
e
Send an IGMP group-specific query
message to the IP multicast group being
queried.
If yes,
check if
the port
exists
in the
Chec
MAC
k if
multica
the IP
st
multic
group
ast
group
has a
corre
spon
ding
MAC
If not:
multic
Create a MAC multicast group
ast
and notify the multicast router
group
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 router ports in the
VLAN owning this port to the
MAC multicast group.
Add the port to the new IP
multicast group.
3-4
If yes, add the IP
multicast group
address to the MAC
multicast group table.
If yes,
If not, add
add the
the port to
port to
the MAC
the IP
multicast
multicas
group, reset
t group.
the aging
timer of the
If not,
port and
create
check if the
an IP
correspondi
multicas
ng IP
t group
multicast
and add
group
the port
exists.
to it.