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DES-3200 Series Layer 2 Managed Fast Ethernet Switch CLI Reference Guide
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<vlanid_list>
- Enter the VLAN ID list here.
all
- Specify all VLANs for which MLD snooping querier is to be configured.
query_interval
- 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
- 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
- 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 this interval to reduce the amount of time it takes a router to detect the loss of the
last listener of a group. The default setting is 1 second.
<sec 1-25>
- Enter the last listener query interval value here. This value must be between 1
and 25 seconds.
state
- (Optional) 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.
enable
- Enable the MLD querier state.
disable
- Disable the MLD querier state.
version
- (Optional) Specify the version of MLD packet that will be sent by the Switch.
<value 1-2>
- Enter the version number value here. This value must be between 1 and 2.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To configure the MLD snooping querier:
DES-3200-28P:admin#config mld_snooping querier vlan_name default query_interval
125 state enable
Command: config mld_snooping querier vlan_name default query_interval 125 state
enable
Success.
DES-3200-28P:admin#
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