HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 229

Step 1. Enter system view. 2. Enter VLAN view. 3. Enable the MLD snooping querier. Command system-view vlan vlan-id mld-snooping querier Remarks N/A N/A Disabled by default Configuring parameters for MLD queries and responses CAUTION: In the configuration, make sure that the interval for sending MLD general queries is greater than the maximum response delay for MLD general queries. Otherwise, IPv6 multicast members might be deleted by mistake. You can modify the MLD general query interval based on the actual condition of the network. A multicast listening host starts a timer for each IPv6 multicast group that it has joined when it receives an MLD query (general query or multicast-address-specific query). This timer is initialized to a random value in the range of 0 to the maximum response delay advertised in the MLD query message. When the timer value decreases to 0, the host sends an MLD report to the IPv6 multicast group. To speed up the response of hosts to MLD queries and avoid simultaneous timer expirations causing MLD report traffic bursts, you must properly set the maximum response delay. • The maximum response delay for MLD general queries is set by the max-response-time command. • The maximum response delay for MLD multicast-address-specific queries equals the MLD last-listener query interval. Configuring MLD queries and responses globally Step 1. Enter system view. 2. Enter MLD-snooping view. 3. Set the maximum response delay for MLD general queries. 4. Set the MLD last-member query interval. Command system-view mld-snooping max-response-time interval Remarks N/A N/A 10 seconds by default last-listener-query-interval interval 1 second by default Configuring the parameters for MLD queries and responses in a VLAN Step 1. Enter system view. 2. Enter VLAN view. 3. Set the MLD query interval. Command system-view vlan vlan-id mld-snooping query-interval interval Remarks N/A N/A 125 seconds by default 218