Configuring Vlan Settings For Mld Snooping And Query - AMX NXA-ENET8-2POE Operation/Reference Manual

If multicast routing is not supported on other switches in your network, you can use MLD Snooping and Query
to monitor MLD service requests passing between multicast clients and servers, and dynamically configure the
switch ports which need to forward multicast traffic.
Multicast routers use information from MLD snooping and query reports, along with a multicast routing
protocol such as PIMv6, to support IP multicasting across the Internet.
1.
Click Configuration, IPMC, MLD Snooping, Basic Configuration.
2.
Adjust the MLD settings as required.
3.
Click Save.

Configuring VLAN Settings For MLD Snooping And Query

Use the MLD Snooping VLAN Configuration page to configure MLD snooping and query for a VLAN
interface.
FIG. 80 MLD Snooping VLAN Configuration
MLD Snooping VLAN Configuration parameters
• VLAN ID
• Snooping Enabled When enabled, the switch will monitor network traffic on the indicated VLAN inter-
• MLD Querier
• RV
NXA-ENET8-2POE Gigabit Ethernet Layer 2 PoE Switch
VLAN Identifier.
face to determine which hosts want to receive multicast traffic. (Default: Disabled)
When MLD snooping is enabled globally, the per VLAN interface settings for MLD
snooping take precedence. When MLD snooping is disabled globally, snooping
can still be configured per VLAN interface, but the interface settings will not take
effect until snooping is re-enabled globally.
When enabled, the switch can serve as the MLDv2 Querier if selected in the bid-
ding process with other competing multicast routers/switches, and if selected will
be responsible for asking hosts if they want to receive multicast traffic. (Default:
Disabled) A router, or multicast-enabled switch, can periodically ask their hosts if
they want to receive multicast traffic. If there is more than one router/switch on the
LAN performing IP multicasting, one of these devices is selected querier and
assumes the role of querying the LAN for group members. It then propagates the
service requests on to any upstream multicast router/switch to ensure that it will
continue to receive the multicast service.
An IPv6 address must be configured on the VLAN interface from which the querier
will act if elected. When serving as the querier, the switch uses this IPv6 address
as the query source address. The querier will not start or will disable itself after
having started if it detects an IPv6 multicast router on the network.
The Robustness Variable allows tuning for the expected packet loss on a network.
A port will be removed from receiving a multicast service when no MLD reports
are detected in response to a number of MLD queries. The robustness variable
sets the number of queries on ports for which there is no report. (Range: 1-255;
Default: 2)
Routers adopt the robustness value from the most recently received query. If the
querier'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 maxi-
mum 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.
Configuring the NXA-ENET8-2POE
107