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show mld statistics

Syntax

show mld statistics
<interface interface-name>
<logical-system (all | logical-system-name)>

Release Information

Command introduced before JUNOS Release 7.4.

Description

Display information about Multicast Listener Discovery (MLD) statistics.

Options

none — Display MLD statistics for all interfaces on all logical systems.

interface interface-name — (Optional) Display statistics about the specified interface.

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 mld statistics

List of Sample Output

show mld statistics
show mld statistics interface

Output Fields

Table 36 describes the output fields for the show mld statistics command. Output fields are listed in the approximate order in which they appear.

Table 36: show mld statistics Output Fields

Field Name

Field Description

Received

Number of received packets.

Sent

Number of transmitted packets.

Rx errors

Number of received packets that contained errors.

MLD Message type

Summary of MLD statistics.

  • Listener Query (v1/v2)—Number of membership queries sent and received.
  • Listener Report (v1)—Number of version 1 membership reports sent and received.
  • Listener Done (v1/v2)—Number of Listener Done messages sent and received.
  • Listener Report (v2)—Number of version 2 membership reports sent and received.
  • Other Unknown types—Number of unknown message types received.
  • MLD v2 source required for SSM—Number of MLD version 2 messages received that contained no source.
  • MLD v2 mode not applicable for SSM—Number of MLD version 2 messages received that did not contain a mode applicable for source-specific multicast (SSM).

MLD Global Statistics

Summary of MLD statistics for all interfaces.

  • Bad Length—Number of messages received with length errors so severe that further classification could not occur.
  • Bad Checksum—Number of messages received with an invalid IP checksum. No further classification was performed.
  • Bad Receive If—Number of messages received on an interface not enabled for MLD.
  • Rx non-local—Number of messages received from nonlocal senders.
  • Timed out—Number of groups that timed out as a result of not receiving an explicit leave message.
  • Rejected Report—Number of reports dropped because of the MLD group policy.
  • Total Interfaces—Number of interfaces configured to support IGMP.

Sample Output

show mld statistics

user@host> show mld statistics 
MLD packet statistics for all interfaces
MLD Message type            Received       Sent  Rx errors
Listener Query (v1/v2)             0          2          0
Listener Report (v1)               0          0          0
Listener Done (v1/v2)              0          0          0
Listener Report (v2)               0          0          0
Other Unknown types                                      0
MLD v2 source required for SSM     2
MLD v2 mode not applicable for SSM 0

MLD Global Statistics
Bad Length                         0
Bad Checksum                       0
Bad Receive If                     0
Rx non-local                       0
Timed out                          0
Rejected Report                    0
Total Interfaces                   2

show mld statistics interface

user@host> show mld statistics interface fe-1/0/1.0 
MLD interface packet statistics for fe-1/0/1.0
MLD Message type            Received       Sent  Rx errors
Listener Query (v1/v2)             0          2          0
Listener Report (v1)               0          0          0
Listener Done (v1/v2)              0          0          0
Listener Report (v2)               0          0          0
Other Unknown types                                      0
MLD v2 source required for SSM     2
MLD v2 mode not applicable for SSM 0

MLD Global Statistics
Bad Length                         0
Bad Checksum                       0
Bad Receive If                     0
Rx non-local                       0
Timed out                          0
Rejected Report                    0
Total Interfaces                   2
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