Chapter 76 Multicast
OLT2406 User’s Guide
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76.4 IGMP Snooping/Multicast Commands
Use the igmp-snooping/multicast commands in configure mode to configure the multicast settings.
The following table describes the command options.
Table 275 igmp-snooping/multicast Commands
COMMAND DESCRIPTION M P
igmp-snooping <cr>
Enables IGMP snooping to forward group
multicast traffic only to ports that are members
of that group.
C13
igmp-snooping host-timeout <1-
16711450>
Configures the time in seconds that elapses
before the OLT removes an IGMP group
membership entry if it does not receive report
messages from the port.
C13
igmp-snooping leave-timeout <1-
16711450>
Configures the leave-timeout interval, in
seconds, for a port without receiving an IGMP
report after an IGMP leave was received.
C13
igmp-snooping 8021p-priority <0-7>
Sets the IEEE 802.1p priority for outgoing IGMP
snooping packets.
C13
igmp-snooping mld-support <cr>
Enables MLDv1/v2 ability. C 13
igmp-snooping query-tag
<mvlan|ani-vlan>
Configures the query tag to be either multicast
VLAN or ANI VLAN on NNI ports.
C13
igmp-snooping report-tag
<mvlan|ani-vlan>
Configures the tag of outgoing IGMP control
packets to be either multicast VLAN or ANI VLAN
on NNI ports.
C13
igmp-snooping reserved-multicast-
group <drop|flooding>
Specifies the action to perform when the OLT
receives a frame with a reserved multicast
address. Select drop to discard the frame(s).
Select flooding to send the frame(s) to all ports.
The IP address range of 224.0.0.0 to 224.0.0.255 is
reserved for multicasting on the local network
only. For example, 224.0.0.1 is for all hosts on a
local network segment and 224.0.0.9 is used to
send RIP routing information to all RIP v2 routers
on the same network segment. A multicast
router will not forward a packet with the
destination IP address within this range to other
networks. See the IANA web site for more
information.
The layer 2 multicast MAC addresses used by
Cisco layer 2 protocols,
01:00:0C:CC:CC:CC and 01:00:0C:CC:CC:CD,
are also included in this group.
C13
igmp-snooping unknown-multicast-
frame <drop|flooding>
Specifies the action to perform when the OLT
receives an unknown multicast frame. Select
drop to discard the frame(s). Select flooding to
send the frame(s) to all ports.
C13
no igmp-snooping <cr>
Disables IGMP snooping on the OLT. C 13
no igmp-snooping mld-support
Disables MLDv1/v2 ability. C 13
no igmp-snooping 8021p-priority
Disables the IEEE 802.1p priority for outgoing
IGMP snooping packets.
C13
igmp-flush
Flushes the IGMP snooping table. E 13
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