MLD Configuration Example

cisco-mld-configuration

MLD Configuration on Cisco

In this lesson we will configure Multicast Listener Discovery (MLD) on Cisco devices. Out Multicast Network will be like below:


cisco-mld-configuration

Now, let’s start to configure MLD.

MLD Version

The default version of MLD is version 2. But to show you, we will configure this version even it not required. To do this we will use “ipv6 mld version 2” command.

switch# config t
switch(config)# interface ethernet 1/1
switch(config-if)# ipv6 mld version 2

Nore: Here, we are showing only one interface, but this configuration must be done on each MLD interface. This is true for all the interface configurations.

Static Group Binding

To bind a group to an interface statically, we will use the below command under the interface:

switch(config-if)# ipv6 mld join-group FFFE::1

MLD Timers

There are various timers used with MLD like IGMP. Here, we will show the most important and widely modified ones.

• MLD Startup Query Interval
• Querier Timeout
• Query Timeout
• Query Max Response Time
• Query Interval
• Last Member Query Response Time
• Group Timeout

MLD timers are configured under the interface that MLD run.

switch(config-if)# ipv6 mld startup-query-interval 25
switch(config-if)# ipv6 mld querier-timeout 250
switch(config-if)# ipv6 mld query-timeout 200
switch(config-if)# ipv6 mld query-max-response-time 10
switch(config-if)# ipv6 mld query-interval 150
switch(config-if)# ipv6 mld last-member-query-response-time 3
switch(config-if)# ipv6 mld group-timeout 200

The default values of some of the MLD values are given below:

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Lesson tags: Multicast, mld
Back to: CCIE > IGMP and MLD

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