Configuring Mld Query And Response Parameters - HP 4800G Series Configuration Manual

By default, in consideration of compatibility, the device does not check the Router-Alert option, that
is, it processes all received MLD messages. In this case, the device passes MLD messages to the
upper layer protocol for processing, no matter whether the MLD messages carry the Router-Alert
option or not.
To enhance the device performance, avoid unnecessary costs, and ensure the protocol security,
you can configure the device to discard MLD messages without the Router-Alert option.
Configuring the Router-Alert option for MLD messages globally
Follow these steps to configure the Router-Alert option for MLD messages globally:
To do...
Enter system view
Enter MLD view
Configure the interface to
discard any MLD message
without the Router-Alert option
Enable the insertion of the
Router-Alert option into MLD
messages
Configuring the Router-Alert option on an interface
Follow these steps to configure the Router-Alert option on an interface:
To do...
Enter system view
Enter interface view
Configure the interface to
discard any MLD message
without the Router-Alert option
Enable the insertion of the
Router-Alert option into MLD
messages

Configuring MLD Query and Response Parameters

On startup, the MLD querier sends "startup query count" MLD general queries at the "startup query
interval", which is 1/4 of the "MLD query interval".
The MLD querier periodically sends MLD general queries at the "MLD query interval" to determine
whether any IPv6 multicast group member exists on the network. You can modify the query interval
based on the actual condition of the network.
Upon receiving an MLD done message, the MLD querier sends "last listener query count" MLD
multicast-address-specific queries at the "MLD last listener query interval". MLD is robust to
Use the command...
system-view
mld
require-router-alert
send-router-alert
Use the command...
system-view
interface interface-type
interface-number
mld require-router-alert
mld send-router-alert
1-14
Remarks
—
—
Optional
By default, the device does not
check MLD messages for the
Router-Alert option.
Optional
By default, MLD messages
carry the Router-Alert option.
Remarks
—
—
Optional
By default, the device does not
check MLD messages for the
Router-Alert option.
Optional
By default, MLD messages
carry the Router-Alert option.