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Configuring IP Multicast 689
The IGMP Interface Configuration page contains the following fields:
•
Interface
— Select the interface for which data is to be displayed or configured from the drop-down
menu.
•
Interface Mode
— Select Enable or Disable from the drop-down menu to set the administrative status
of IGMP on the selected interface. The default is Disable.
•
Version
— Enter the version of IGMP you want to configure on the selected interface. Valid values are
1 to 3, and the default value is 3. This field is configurable only when IGMP interface mode is enabled.
•
Robustness
— Enter the robustness value. This variable allows tuning for the expected packet loss on a
subnet. If you expect the subnet to be lossy, you should enter a higher number for this parameter.
IGMP is robust to (robustness variable-1) packet losses. Valid values are from 1 to 255. The default
value is 2.
•
Query Interval (secs)
— Enter the frequency in seconds at which IGMP host-query packets are to be
transmitted on this interface. Valid values are from 1 to 3600. The default value is 125.
•
Query Max Response Time (1/10 of a second)
— Enter the maximum query response time to be
advertised in IGMPv2 queries on this interface, in tenths of a second. The default value is 100. Valid
values are from 0 to 255.
•
Startup Query Interval (secs)
— Enter the number of seconds between the transmission of startup
queries on the selected interface. The valid values are from 1 to 300. The default value is 31.
•
Startup Query Count
— Enter the number of queries to be sent on startup. The valid values are from
1 to 20. The default value is 2.
•
Last Member Query Interval (1/10 of a second)
— Enter the last member query interval in tenths of a
second. This is the maximum response time to be inserted into group-specific queries sent in response
to leave group messages, and is also the amount of time between group-specific query messages. Valid
values are from 0 to 255. The default value is 10. This value is not used for IGMP version 1.
•
Last Member Query Count
— Enter the number of queries to be sent on receiving a leave group
report. Valid values are from 1 to 20. The default value is 2.
Configuring an IGMP Routing Interface
1.
Open the
IGMP Interface Configuration
page.
2.
Select the interface to configure from the
Interface
field.
3.
Modify the remaining fields as needed.
4.
Click
Apply Changes
.
The interface configuration is saved, and the device is updated.
Configuring an IGMP Routing Interface using the CLI Command
For information about the CLI commands that perform this function, see the following chapter in the
CLI Reference Guide:
• IGMP Commands