Setting the query interval

Setting the query interval

You can define the frequency at which MLD query messages are sent. For example, if you want queries to be sent every 50 seconds, enter a command such as the following.

device(config)# ipv6 mld query-interval 50

Syntax: [no] ipv6 mld query-interval seconds

The seconds variable specifies the MLD query interval in seconds. You can specify from 2 through 3600 seconds. The default value is 125 seconds.

To define the frequency at which MLD query messages are sent for a specified VRF, enter the following commands.

device(config)# ipv6 router pim vrf blue device(config-ipv6-pim-router-vrf-blue)# ipv6 mld query-interval 50

Syntax: [no] ipv6 router pim [ vrf vrf-name]

The vrf parameter specifies the virtual routing instance (VRF) specified by the variable vrf-name .

Setting the last listener query interval

The Last Listener Query Interval is the Maximum Response Delay inserted into Multicast-Address- Specific Queries sent in response to Done messages, and is also the amount of time between Multicast- Address-Specific Query messages. When the device receives an MLDv1 leave message or an MLDv2 state change report, it sends out a query and expects a response within the time specified by this value. Using a lower value allows members to leave groups more quickly. You can set the last listener query interval by entering a command such as the following.

device(config)# ipv6 mld llqi 5

Syntax: [no] ipv6 mld llqi seconds

The seconds variable sets the last listener query interval in seconds. You can specify from 1 through 25 seconds. The default is 1.

To set the last listener query interval for a specified VRF, enter the following commands.

device(config)# ipv6 router pim vrf blue device(config-ipv6-pim-router-vrf-blue)# ipv6 mld llqi 5

Syntax: [no] ipv6 router pim [ vrf vrf-name]

The vrf parameter specifies the virtual routing instance (VRF) specified by the variable vrf-name .

Setting the robustness

You can specify the number of times that the switch sends each MLD message from this interface. Use a higher value to ensure high reliability from MLD. You can set the robustness by entering a command such as the following.

device(config)# ipv6 mld robustness 3

Syntax: ipv6 mld robustness seconds

The seconds variable sets the MLD robustness in seconds. You can specify from 2 through 7 seconds. The default is 2 seconds.

FastIron Ethernet Switch IP Multicast Configuration Guide

199

53-1003085-02

 

Page 201
Image 201
Brocade Communications Systems IPMC5000PEF manual Setting the query interval, Setting the last listener query interval