DWS-3160 Series Gigabit Ethernet Unified Switch CLI Reference Guide
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configured.
<vlan_name 32>
- Enter the VLAN name here. The VLAN name can be up to 32 characters
long.
vlanid
- Specifies the ID of the VLAN for which MLD snooping querier is to be configured.
<vlanid_list>
- Enter the VLAN ID list here.
all
- Specifies all VLANs for which MLD snooping querier is to be configured.
query_interval
- (Optional) Specifies 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) Specifies 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.
1. 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).
2. 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).
3. 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.
4. 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) Specifies 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.
<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
- Enter enable to enable the MLD querier state here.
disable
- Enter disable to disable the MLD querier state here.
version
- (Optional) Specifies the version of MLD packet that will be sent by this port. If a MLD
packet received by the interface has a version higher than the specified version, this packet
will be dropped.
<value 1-2>
- Enter the version number value here. This value must be between 1 and 2.
Restrictions
Only Administrators, Operators and Power-Users can issue this command.
Example
To configure the MLD snooping querier:
