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show interfaces demux0 (Demux Interfaces)

 

Syntax

Release Information

Command introduced in Junos OS Release 9.0.

Description

(MX Series and M Series routers only) Display status information about the specified demux interface.

Options

noneDisplay standard information about the specified demux interface.
brief | detail | extensive | terse(Optional) Display the specified level of output.
descriptions(Optional) Display interface description strings.
media(Optional) Display media-specific information about network interfaces.
snmp-index snmp-index(Optional) Display information for the specified SNMP index of the interface.
statistics(Optional) Display static interface statistics.

Required Privilege Level

view

List of Sample Output

show interfaces demux0 (Demux)

show interfaces demux0 (PPPoE over Aggregated Ethernet)

show interfaces demux0 extensive (Targeted Distribution for Aggregated Ethernet Links)

show interfaces demux0 (ACI Interface Set Configured)

Output Fields

Table 1 lists the output fields for the show interfaces demux0 (Demux Interfaces) command. Output fields are listed in the approximate order in which they appear.

Table 1: show interfaces demux0 (Demux Interfaces) Output Fields

Field Name

Field Description

Level of Output

Physical Interface 

Physical interface

Name of the physical interface.

brief detail extensive none

Interface index

Index number of the physical interface, which reflects its initialization sequence.

brief detail extensive none

Enabled

State of the interface. Possible values are described in the “Enabled Field” section under Common Output Fields Description.

brief detail extensive none

Physical link

Status of the physical link (Up or Down).

detail extensive none

Admin

Administrative state of the interface (Up or Down).

terse

Interface index

Index number of the physical interface, which reflects its initialization sequence.

detail extensive none

Link

Status of the physical link (Up or Down).

terse

Targeting summary

Status of aggregated Ethernet links that are configured with targeted distribution (primary or backup)

extensive

Bandwidth

Bandwidth allocated to the aggregated Ethernet links that are configured with targeted distribution.

extensive

Proto

Protocol family configured on the interface.

terse

SNMP ifIndex

SNMP index number for the physical interface.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Type

Type of interface. Software-Pseudo indicates a standard software interface with no associated hardware device.

brief detail extensive none

Link-level type

Encapsulation being used on the physical interface.

brief detail extensive

MTU

Maximum transmission unit size on the physical interface.

brief detail extensive

Clocking

Reference clock source: Internal (1) or External (2).

brief detail extensive

Speed

Speed at which the interface is running.

brief detail extensive

Device flags

Information about the physical device. Possible values are described in the “Device Flags” section under Common Output Fields Description.

brief detail extensive none

Interface flags

Information about the interface. Possible values are described in the “Interface Flags” section under Common Output Fields Description.

brief detail extensive none

Link type

Data transmission type.

detail extensive none

Link flags

Information about the link. Possible values are described in the “Link Flags” section under Common Output Fields Description.

detail extensive none

Physical info

Information about the physical interface.

detail extensive

Hold-times

Current interface hold-time up and hold-time down, in milliseconds.

detail extensive

Current address

Configured MAC address.

detail extensive

Hardware address

Hardware MAC address.

detail extensive

Alternate link address

Backup address of the link.

detail extensive

Last flapped

Date, time, and how long ago the interface went from down to up. The format is Last flapped: year-month-day hour:minute:second:timezone (hour:minute:second ago). For example, Last flapped: 2002-04-26 10:52:40 PDT (04:33:20 ago).

detail extensive none

Statistics last cleared

Time when the statistics for the interface were last set to zero.

detail extensive

Traffic statistics

Number and rate of bytes and packets received and transmitted on the physical interface.

  • Input bytes—Number of bytes received on the interface.

  • Output bytes—Number of bytes transmitted on the interface.

  • Input packets—Number of packets received on the interface.

  • Output packets—Number of packets transmitted on the interface.

  • IPv6 transit statistics—Number of IPv6 transit bytes and packets received and transmitted on the physical interface if IPv6 statistics tracking is enabled.

    Note: These fields include dropped traffic and exception traffic, as those fields are not separately defined.

    • Input bytes—Number of bytes received on the interface

    • Output bytes—Number of bytes transmitted on the interface.

    • Input packets—Number of packets received on the interface.

    • Output packets—Number of packets transmitted on the interface.

detail extensive

Input errors

Input errors on the interface whose definitions are as follows:

  • Errors—Sum of the incoming frame aborts and FCS errors.

  • Drops—Number of packets dropped by the input queue of the I/O Manager ASIC. If the interface is saturated, this number increments once for every packet that is dropped by the ASIC's RED mechanism.

  • Framing errors—Number of packets received with an invalid frame checksum (FCS).

  • Runts—Number of frames received that are smaller than the runt threshold.

  • Giants—Number of frames received that are larger than the giant packet threshold.

  • Policed discards—Number of frames that the incoming packet match code discarded because they were not recognized or not of interest. Usually, this field reports protocols that the Junos OS does not handle.

  • Resource errors—Sum of transmit drops.

extensive

Input Rate

Input rate in bits per second (bps) and packets per second (pps).

none

Output errors

Output errors on the interface. The following paragraphs explain the counters whose meaning might not be obvious:

  • Carrier transitions—Number of times the interface has gone from down to up. This number does not normally increment quickly, increasing only when the cable is unplugged, the far-end system is powered down and then up, or another problem occurs. If the number of carrier transitions increments quickly (perhaps once every 10 seconds), the cable, the far-end system, or the PIC or PIM is malfunctioning.

  • Errors—Sum of the outgoing frame aborts and FCS errors.

  • Drops—Number of packets dropped by the output queue of the I/O Manager ASIC. If the interface is saturated, this number increments once for every packet that is dropped by the ASIC's RED mechanism.

  • MTU errors—Number of packets whose size exceeded the MTU of the interface.

  • Resource errors—Sum of transmit drops.

extensive

Output Rate

Output rate in bps and pps.

none

Logical Interface  

Logical interface

Name of the logical interface.

brief detail extensive none

Index

Index number of the logical interface, which reflects its initialization sequence.

detail extensive none

SNMP ifIndex

SNMP interface index number for the logical interface.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail

Flags

Information about the logical interface. Possible values are described in the “Logical Interface Flags” section under Common Output Fields Description.

brief detail extensive none

Encapsulation

Encapsulation on the logical interface.

brief extensive none

ACI VLAN: Dynamic Profile

Name of the dynamic profile that defines the agent circuit identifier (ACI) interface set. If configured, the ACI interface set enables the underlying demux interface to create dynamic VLAN subscriber interfaces based on ACI information.

brief detail extensive none

Demux

Specific IP demultiplexing (demux) values:

  • Underlying interface—The underlying interface that the demux interface uses.

  • Index—Index number of the logical interface.

  • Family—Protocol family configured on the logical interface.

  • Source prefixes, total—Total number of source prefixes for the underlying interface.

  • Destination prefixes, total—Total number of destination prefixes for the underlying interface.

  • Prefixinet family prefix.

detail extensive none

protocol-family

Protocol family configured on the logical interface.

brief

Traffic statistics

Number and rate of bytes and packets received and transmitted on the specified interface set.

  • Input bytes, Output bytes—Number of bytes received and transmitted on the interface set.

  • Input packets, Output packets—Number of packets received and transmitted on the interface set.

  • IPv6 transit statistics—Number of IPv6 transit bytes and packets received and transmitted on the logical interface if IPv6 statistics tracking is enabled.

    Note: The packet and byte counts in these fields include traffic that is dropped and does not leave the router.

    • Input bytes—Number of bytes received on the interface.

    • Output bytes—Number of bytes transmitted on the interface.

    • Input packets—Number of packets received on the interface.

    • Output packets—Number of packets transmitted on the interface.

detail extensive

Local statistics

Number of transit bytes and packets received and transmitted on the local interface.

  • Input bytes—Number of bytes received on the interface.

  • Output bytes—Number of bytes transmitted on the interface.

  • Input packets—Number of packets received on the interface.

  • Output packets—Number of packets transmitted on the interface.

detail extensive

Transit statistics

Number and rate of bytes and packets transiting the switch.

Note: The packet and byte counts in these fields include traffic that is dropped and does not leave the router.

  • Input bytes—Number of bytes received on the interface.

  • Output bytes—Number of bytes transmitted on the interface.

  • Input packets—Number of packets received on the interface.

  • Output packets—Number of packets transmitted on the interface.

detail extensive

IPv6 Transit statistics

Number of IPv6 transit bytes and packets received and transmitted on the logical interface if IPv6 statistics tracking is enabled.

Note: The packet and byte counts in these fields include traffic that is dropped and does not leave the router.

  • Input bytes—Number of bytes received on the interface.

  • Output bytes—Number of bytes transmitted on the interface.

  • Input packets—Number of packets received on the interface.

  • Output packets—Number of packets transmitted on the interface.

detail extensive

Input packets

Number of packets received on the interface.

none

Output packets

Number of packets transmitted on the interface.

none

Protocol

Protocol family. Possible values are described in the “Protocol Field” section under Common Output Fields Description.

detail extensive none

MTU

Maximum transmission unit size on the logical interface.

detail extensive none

Maximum labels

Maximum number of MPLS labels configured for the MPLS protocol family on the logical interface.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Route table

Route table in which the logical interface address is located. For example, 0 refers to the routing table inet.0.

detail extensive

Flags

Information about protocol family flags. Possible values are described in the “Family Flags” section under Common Output Fields Description.

detail extensive none

Mac-Validate Failures

Number of MAC address validation failures for packets and bytes. This field is displayed when MAC address validation is enabled for the logical interface.

detail extensive none

Addresses, Flags

Information about the address flags. Possible values are described in the “Addresses Flags” section under Common Output Fields Description.

detail extensive none

Destination

IP address of the remote side of the connection.

detail extensive statistics none

Local

IP address of the logical interface.

detail extensive terse none

Remote

IP address of the remote interface.

terse

Broadcast

Broadcast address of the logical interlace.

detail extensive none

Generation

Unique number for use by Juniper Networks technical support only.

detail extensive

Link

Name of the physical interfaces for member links in an aggregated Ethernet bundle for a PPPoE over aggregated Ethernet configuration. PPPoE traffic goes out on these interfaces.

detail extensive none

Dynamic-profile

Name of the PPPoE dynamic profile assigned to the underlying interface.

detail extensive none

Service Name Table

Name of the PPPoE service name table assigned to the PPPoE underlying interface.

detail extensive none

Max Sessions

Maximum number of dynamic PPPoE logical interfaces that the router can activate on the underlying interface.

detail extensive none

Duplicate Protection

State of duplicate protection: On or Off. Duplicate protection prevents the activation of another dynamic PPPoE logical interface on the same underlying interface when a dynamic PPPoE logical interface for a client with the same MAC address is already active on that interface.

detail extensive none

Direct Connect

State of the configuration to ignore DSL Forum VSAs: On or Off. When configured, the router ignores any of these VSAs received from a directly connected CPE device on the interface.

detail extensive none

AC Name

Name of the access concentrator.

detail extensive none

Sample Output

show interfaces demux0 (Demux)

user@host> show interfaces demux0

show interfaces demux0 (PPPoE over Aggregated Ethernet)

user@host> show interfaces demux0.100

show interfaces demux0 extensive (Targeted Distribution for Aggregated Ethernet Links)

user@host> show interfaces demux0.1073741824 extensive

show interfaces demux0 (ACI Interface Set Configured)

user@host> show interfaces demux0.1073741827