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DGS-3700 Series Layer 2 Managed Gigabit Ethernet Switch CLI Reference Guide
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config mld_snooping querier
max_reponse_time
−
The maximum time in seconds to wait for reports from listeners.
The default setting is
10
seconds.
robustness_variable
−
Provides fine-tuning to allow for expected packet loss on a
subnet. The value of the robustness variable is used in calculating the following
MLD message intervals:
group listener interval
−
Amount of time that must pass before a multicast router
decides there are no more listeners of a group on a network. This interval is
calculated as follows: (robustness variable * query interval) + (1 * query response
interval).
other querier present interval
−
Amount of time that must pass before a multicast
router decides that there is no longer another multicast router that is the querier.
This interval is calculated as follows: (robustness variable * query interval) + (0.5
* query response interval).
last listener query count
−
Number of group-specific queries sent before the router
assumes there are no local listeners of a group. The default number is the value of
the robustness variable.
By default, the robustness variable is set to
2
. You might want to increase this value if
you expect a subnet to be lossy.
last_listener_query_interval
−
The maximum amount of time between group-specific
query messages, including those sent in response to done-group messages. You
might lower this interval to reduce the amount of time it takes a router to detect the
loss of the last listener of a group.
state
−
Allows you to enable or disable the MLD snooping function for the chosen
VLAN.
version
– The version of MLD Query sent by the switch.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example usage:
To configure the MLD snooping querier query interval to 125 secs and state enable:
DGS-3700-12:5#config mld_snooping querier vlan default query_interval 125 state enable
Command: config mld_snooping querier vlan default query_interval 125 state enable
Success.
DGS-3700-12:5#
config mld_snooping mrouter_ports
Purpose
Used to configure ports as router ports.
Syntax
config mld_snooping mrouter_ports [vlan <vlan_name 32> | vlanid <vidlist>]
[add|delete] <portlist>
Description
This command is used to designate a range of ports as being connected to multicast-
enabled routers. This will ensure that all packets with such a router as its
destination will reach the multicast-enabled router
−
regardless of protocol, etc.
Parameters
vlan
−
The name of the VLAN for which MLD snooping is to be configured.
vlanid
– The VIDs of the VLAN for which MLD snooping is to be configured.
add | delete
−
Specifies to add or delete the router ports.
portlist
−
Specifies a range of ports to be configured.
Restrictions
Only Administrator and Operator-level users can issue this command.