Chapter 24
| Multicast Filtering Commands
MLD (Layer 3)
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ipv6 mld robustval This command specifies the robustness (expected packet loss) for this interface.
Use the no form of this command to restore the default value.
Syntax
ipv6 mld robustval robust-value
no ipv6 mld robustval
robust-value - The robustness of this interface. (Range: 1-255)
Default Setting
2
Command Mode
Interface Configuration (VLAN)
Command Usage
â—† 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.
â—† 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.
Example
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.
Syntax
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.
Default Setting
None
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