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show igmp interface
Syntax
- show igmp interface
- <brief | detail>
- <interface-name>
- <logical-system (all | logical-system-name)>
Release Information
Command introduced before JUNOS Release
7.4.
Description
Display information about Internet Group Management
Protocol (IGMP)-enabled interfaces.
Options
none — Display standard
information about all IGMP-enabled interfaces on all logical systems.
brief | detail — (Optional)
Display the specified level of output.
interface-name — (Optional) Display information about the specified
IGMP-enabled interface only.
logical-system (all | logical-system-name) — (Optional) Perform this operation on
all logical systems or on a particular logical system.
Required Privilege Level
view
Related Topics
clear igmp membership
List of Sample Output
show igmp interface
show igmp interface brief
show igmp interface detail
Output Fields
Table 29 describes the output fields
for the show igmp interface command. Output fields are listed
in the approximate order in which they appear.
Table 29: show igmp interface Output Fields
|
Field Name
|
Field Description
|
Level of Output
|
|
Interface
|
Name of the interface.
|
All levels
|
|
State
|
State of the interface: Up or Down.
|
All levels
|
|
Querier
|
Address of the router that has
been elected to send membership queries.
|
All levels
|
|
Timeout
|
How long until the IGMP querier
is declared to be unreachable, in seconds.
|
All levels
|
|
Version
|
IGMP version being used on the
interface: 1 , 2 , or 3.
|
All levels
|
|
Groups
|
Number of groups on the interface.
|
All levels
|
|
Immediate Leave
|
State of the immediate leave option:
-
On—Indicates that the router removes a
host from the multicast group as soon as the router receives a leave
group message from a host associated with the interface.
-
Off—Indicates that after receiving a leave
group message, instead of removing a host from the multicast group
immediately, the router sends a group query to determine if another
receiver responds.
|
All levels
|
|
Promiscuous Mode
|
State of the promiscuous mode option:
-
On—Indicates that the router can accept
IGMP reports from subnetworks that are not associated with its interfaces.
-
Off—Indicates that the router can accept
IGMP reports only from subnetworks that are associated with its interfaces.
|
All levels
|
|
SSM map
|
Name of the source-specific multicast
(SSM) map (if configured) used on the interface.
|
All levels
|
|
Configured Parameters
|
Information configured by the user:
-
IGMP Query Interval—Interval (in seconds)
at which this router sends membership queries when it is the querier.
-
IGMP Query Response Interval—Time (in seconds)
that the router waits for a report in response to a general query.
-
IGMP Last Member Query Interval—Time (in
seconds) that the router waits for a report in response to a group-specific
query.
-
IGMP Robustness Count—Number of times the
router retries a query.
|
All levels
|
|
Derived Parameters
|
Derived information:
-
IGMP Membership Timeout—Timeout period
(in seconds) for group membership. If no report is received for these
groups before the timeout expires, the group membership is removed.
-
IGMP Other Querier Present Timeout—Time
(in seconds) that the router waits for the IGMP querier to send a
query.
|
All levels
|
Sample Output
show igmp interface
user@host> show igmp interface
Interface: at-0/3/1.0
Querier: 10.111.30.1
State: Up Timeout: None Version: 2 Groups: 4
Interface: so-1/0/0.0
Querier: 10.111.10.1
State: Up Timeout: None Version: 2 Groups: 2
Interface: so-1/0/1.0
Querier: 10.111.20.1
State: Up Timeout: None Version: 2 Groups: 4
Immediate Leave: On
Promiscuous Mode: Off
Configured Parameters:
IGMP Query Interval: 125.0
IGMP Query Response Interval: 10.0
IGMP Last Member Query Interval: 1.0
IGMP Robustness Count: 2
Derived Parameters:
IGMP Membership Timeout: 260.0
IGMP Other Querier Present Timeout: 255.0
show igmp interface brief
The output for the show igmp interface brief command
is identical to that for the show igmp interface command.
For sample output, see show igmp interface.
show igmp interface detail
The output for the show igmp interface detail command
is identical to that for the show igmp interface command.
For sample output, see show igmp interface.
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