Black Box LGB6026A, Management Manual

Page: 1009 / 1289

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C
HAPTER
41 | Multicast Filtering Commands
MLD (Layer 3)
C
OMMAND
M
ODE
Interface Configuration (VLAN)
C
OMMAND
U
SAGE
◆
The robustness value is used to compensate for expected packet lose
on a link. It indicates the number of refresh packets related to the
current MLD state which might be lost without having to terminate that
state.
◆
Routers adopt the robustness value from the most recently received
query. If the query's robustness variable (QRV) is zero, indicating that
the QRV field does not contain a declared robustness value, the switch
will set the robustness variable to the value statically configured by this
command. If the QRV exceeds 7, the maximum value of the QRV field,
the robustness value is set to zero, meaning that this device will not
advertise a QRV in any query messages it subsequently sends.
E
XAMPLE
Console(config-if)#ipv6 mld robustval 3
Console(config-if)#
ipv6 mld static-
group
This command statically binds multicast groups to a VLAN interface. Use
the
no form to remove the static mapping.
S
YNTAX
ipv6 mld static-group group-address [ source source-address ]
no ipv6 mld static-group [ group-address [ source source-address ]]
group-address - IPv6 multicast group address. (Note that link-local
scope addresses FF02:* are not allowed.)
source-address - IPv6 source address for a multicast server
transmitting traffic to the corresponding multicast group address.
D
EFAULT
S
ETTING
None
C
OMMAND
M
ODE
Interface Configuration (VLAN)
C
OMMAND
U
SAGE
◆
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.