Filter
Top Products
xStack® DES-3200 Series Layer 2 Ethernet Managed Switch CLI Reference Guide
321
DES-3200-28:4#config mld_snooping vlan default state enable
Command: config mld_snooping vlan default state enable
Success.
DES-3200-28:4#
config mld_snooping querier
Purpose
Used to configure the timers and the attributes of the MLD snooping
querier.
Syntax
config mld_snooping querier [vlan <vlan_name 32> | vlanid <vidlist> |
all] {query_interval <sec 1-65535> | max_response_time <sec 1-25>
| robustness_variable <value 1-255> | last_listener_query_interval
<sec 1-25> | state [enable | disable] | version <value 1-2>} (1)
Description
This command is used to configure the timer in seconds between
general query transmissions, the maximum time in seconds to wait
for reports from listeners, and the permitted packet loss that
guarantees by MLD snooping.
Parameters
<vlan_name 32> - The name of the VLAN for which MLD snooping is
to be configured.
<vidlist> - The list of VIDs.
all – Select to configure all the VLANs on the Switch.
query_interval - Specifies the amount of time in seconds between
general query transmissions. The default setting is 125 seconds.
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. Increase this value if a
subnet is expected 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 - This allows the switch to be specified as an MLD Querier
(sends MLD query packets) or a Non-Querier (does not send MLD
query packets). Set to enable or disable.
version <value 1-2> - Specifies the version of MLD packet that will be
sent by this port.
Restrictions
Only Administrator-level users can issue this command.
Example usage: