Extreme Networks EAS 200-24p Switch, Manual

Page: 417 / 908

config mld_snooping querier
Extreme Networks EAS 200-24p Switch CLI Manual
417
config mld_snooping querier
Description
This command configures 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 is guaranteed by
MLD snooping.
Format
config mld_snooping querier [vlan_name <vlan_name 32> | vlanid <vlanid_list> |
all] {query_interval <sec 1-65535> | max_response_time <sec 1-25> |
robustness_variable <value 1-7> | last_listener_query_interval <sec 1-25> |
state [enable | disable] | version <value 1-2>}(1)
Parameters
●
vlan_name - Specify the name of the VLAN for which MLD snooping querier is to be configured.
●
<vlan_name 32> - Enter the VLAN name here. The VLAN name can be up to 32 characters long.
●
vlanid - Specify the ID of the VLAN for which MLD snooping querier is to be configured.
●
<vlanid_list> - Enter the VLAN ID list here.
●
all - Specify all VLANs for which MLD snooping querier is to be configured.
●
query_interval - (Optional) Specify the amount of time in seconds between general query
transmissions. The default setting is 125 seconds.
●
<sec 1-65535> - Enter the query interval value here. This value must be between 1 and 65535
seconds.
●
max_reponse_time - (Optional) Specify the maximum time in seconds to wait for reports from
listeners. The default setting is 10 seconds.
●
<sec 1-25> - Enter the maximum response time value here. This value must be between 1 and 25
seconds.
●
robustness_variable - (Optional) 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:
●
<value 1-7> - Enter the robustness variable value here. This value must be between 1 and 7.
●
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 loosely.
●
last_listener_query_interval - (Optional) Specify the maximum amount of time between group-
specific query messages, including those sent in response to done-group messages. You might lower