Black Box LGB6026A, Management Manual

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C
HAPTER
41 | Multicast Filtering Commands
IGMP (Layer 3)
D
EFAULT
S
ETTING
None
C
OMMAND
M
ODE
Interface Configuration (VLAN)
C
OMMAND
U
SAGE
◆
Group addresses within the entire multicast group address range can
be specified with this command. However, if any address within the
source-specific multicast (SSM) address range (default 232/8) is
specified, but no source address is included in the command, the
request to join the multicast group will fail unless the next node up the
reverse path tree has statically mapped this group to a specific source
address. Also, if an address outside of the SSM address range is
specified, and a specific source address is included in the command, the
request to join the multicast group will also fail if the next node up the
reverse path tree has enabled the PIM-SSM protocol.
◆
If a static group is configured for an any-source multicast (*,G), a
source address cannot subsequently be defined for this group without
first deleting the entry.
◆
If a static group is configured for one or more source-specific multicasts
(S,G), an any-source multicast (*,G) cannot subsequently be defined
for this group without first deleting all of the associated (S,G) entries.
◆
Using the no form of this command to delete a static group without
specifying the source address will delete all any-source and source-
specific multicast entries for the specified group.
◆
The switch supports a maximum of 16 static group entries.
E
XAMPLE
The following example assigns VLAN 1 as a static member of the specified
multicast group.
Console(config)#interface vlan1
Console(config-if)#ip igmp static-group 225.1.1.1