AT-GS900M Series CLI Reference
Section IV: Security and Traffic Control 431
Here are the guidelines for adding a multcast group:
When an existing multicast group IPv6 address is added, the
command issues an error.
The destination MAC address for the IPv6 multicast traffic is copied
from the least significant 32 bits of the IPv6 multicast address.
The range of available group IDs are shown in Table 51.
When a port with the smallest port number in a trunk group is
disabled by the DISABLE SWITCH PORT command, the other
ports in the trunk group do not forward multicast traffic. You can
work around this issue by running the DISABLE SWITCH PORT
command specifying the link parameter with the disable option.
To specify a trunk port as a router port, you must specify all the
member ports of the trunk group as router ports.
Confirmation Command
“SHOW MLDSNOOPING” on page 439
Example
The following command adds an IPv6 multicast group for MLD Snooping:
Manager > add mldsnooping
mcgroup=ff02:2310:1020:3131:4312:5515:fe11:ffff
Table 51. Unavailable Group ID for Multicast Group
Group ID
(ffff:ffff:ffff:ffff:ffff:ffff:WWXX:YYZZ)
Available Group ID
WW 00 to fe
XX 03 to ff
YY 00 to ff
ZZ
00 to ff
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