Mld Snooping (Snooping And Query For Ipv6) - Edge-Core ECS4620-28T Quick Start Manual

28/52-port l3 stackable gigabit ethernet switch

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Table of Contents

Configuring MLD

Snooping and Query

include MLDv2 query and report messages, as well as MLDv1 report and done

Remember that IGMP Snooping and MLD Snooping are independent functions,

and can therefore both function at the same time.

Use the Multicast > MLD Snooping > General page to configure the switch to

forward multicast traffic intelligently. Based on the MLD query and report

messages, the switch forwards multicast traffic only to the ports that request it. This

prevents the switch from broadcasting the traffic to all ports and possibly

disrupting network performance.

These parameters are displayed:

MLD Snooping Status – When enabled, the switch will monitor network traffic

to determine which hosts want to receive multicast traffic. (Default: Disabled)

Querier Status – When enabled, the switch can serve as the querier for MLDv2

snooping if elected. The querier is responsible for asking hosts if they want to

receive multicast traffic. (Default: Disabled)

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.

Robustness – MLD Snooping robustness variable. A port will be removed from

the receiver list for 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: 2-10 Default: 2)

Query Interval – The interval between sending MLD general queries.

(Range: 60-125 seconds; Default: 125 seconds)

This attribute applies when the switch is serving as the querier.

An MLD general query message is sent by the switch at the interval specified by

this attribute. When this message is received by downstream hosts, all receivers

build an MLD report for the multicast groups they have joined.

Query Max Response Time – The maximum response time advertised in MLD

general queries. (Range: 5-25 seconds; Default: 10 seconds)

This attribute controls how long the host has to respond to an MLD Query

message before the switch deletes the group if it is the last member.

Router Port Expiry Time – The time the switch waits after the previous querier

stops before it considers the router port (i.e., the interface that had been