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CHAPTER 8: MULTICAST
Reset: Click to undo any changes made locally and revert to previously saved values.
8.2.2 VLAN CONFIGURATION
When MLD snooping is enabled on a VLAN, the switch minimizes unnecessary multicast traffic. If the switch receives multicast
traffic destined for a given multicast address, it forwards that traffic only to ports on the VLAN that have MLD hosts for that address.
It drops that traffic for ports on the VLAN that have no MLD hosts
The switch will use the last entry of the currently displayed entry as a basis for the next lookup. When the end is reached the text “No
more entries” is shown in the displayed table. Use the button to start over.
WEB INTERFACE
To configure the MLD Snooping VLAN Configuration in the web interface:
1. Click Multicast, MLD Snooping and VLAN Configuration.
2. Click Add New MLD VLAN.
3. Specify the VLAN ID with entries per page.
FIGURE 8-8. MLD SNOOPING VLAN CONFIGURATION
PARAMETER DESCRIPTION
Delete: Check to delete the entry. The designated entry will be deleted during the next save.
VLAN ID: This displays the VLAN ID of the entry.
Snooping Enabled: Enable the per-VLAN IGMP Snooping. Up to 32 VLANs can be selected.
MLD Querier: Enable to join IGMP Querier election in the VLAN. Disable to act as an IGMP Non-Querier.
Compatibility: Compatibility is maintained by hosts and routers taking appropriate actions depending on the versions of IGMP
operating on hosts and routers within a network. The allowed selection is IGMP-Auto, Forced IGMPv1, Forced IGMPv2; the default
compatibility value is IGMP-Auto.
RV: Robustness Variable. The Robustness Variable allows tuning for the expected packet loss on a network. The allowed range is 1 to
255; the default robustness variable value is 2.
QI(sec): Query Interval. The Query Interval is the interval between General Queries sent by the Querier. The allowed range is 1 to 31744
seconds; the default query interval is 125 seconds.
QRI(0.1sec): Query Response Interval. The Max Response Time used to calculate the Max Resp Code inserted into the periodic
General Queries. The allowed range is 0 to 31744 in tenths of seconds; the default query response interval is 100 in tenths of seconds
(10 seconds).