xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
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config igmp_snooping querier
•
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 x query interval) + (0.5 x query response interval).
•
Last member query count—Number of group-specific queries sent
before the router assumes there are no local members 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. Although 1 is
specified as a valid entry, the roubustness variable should not be one or
problems may arise.
last_member_query_interval <sec 1-25>
−
The maximum amount of time
between group-specific query messages, including those sent in response to
leave-group messages. Users may lower this interval to reduce the amount of
time it takes a router to detect the loss of the last member of a group.
state [enable | disable]
−
Allows the Switch to be specified as an IGMP Querier
or Non-querier.
Restrictions
Only administrator-level and operator-level users can issue this command.
Example usage:
To configure IGMP snooping:
DGS-3627:5#config igmp_snooping querier vlan default query_interval 125 state enable
Command: config igmp_snooping querier vlan default query_interval 125 state enable
Success.
DGS-3627:5#
config router_ports
Purpose
Used to configure ports as router ports.
Syntax
config router_ports <vlan_name 32> [add | delete] <portlist>
Description
This command allows designation of 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
add | delete –
Specify whether to add or delete ports as router ports.
<vlan_name 32>
−
The name of the VLAN on which the router port
resides.
<portlist>
−
Specifies a port or range of ports that will be configured
as router ports. The beginning and end of the port list range are
separated by a dash. Non-contiguous portlist entries are separated
by a comma. (ex: 1-3,7-9)
Restrictions Only
administrator-level
and operator-level users can issue this
command.
Example usage:
To set up static router ports:
DGS-3627:5#config router_ports default add 1-10
Command: config router_ports default add 1-10
Success.
