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Supported Platforms

J Series

show interfaces (ISDN B-Channel)

Syntax

show interfaces bc-pim/0/port:channel<brief | detail | extensive | terse><descriptions><media><snmp-index snmp-index> <statistics>

Release Information

Command introduced before Junos OS Release 7.4.

Description

(J Series routers only) Display information about the specified ISDN B-channel interface.

Options

bc-pim/0/port:channel

—

Display standard information about the specified ISDN B-channel interface.

brief | detail | extensive | terse

—

(Optional) Display the specified level of output.

descriptions

—

(Optional) Display the interface description string.

media

—

(Optional) Display media-specific information.

snmp-index snmp-index

—

(Optional) Display information for the specified SNMP index of the interface.

statistics

—

(Optional) Display static interface statistics.

Additional Information

There are no user-configurable fields on B-channel interfaces.

Required Privilege Level

view

List of Sample Output

show interfaces (ISDN B-Channel)
show interfaces brief (ISDN B-Channel)
show interfaces detail (ISDN B-Channel)
show interfaces extensive (ISDN B-Channel)

Output Fields

Table 1 lists the output fields for the show interfaces (ISDN B-channel) command. Output fields are listed in the approximate order in which they appear.

Table 1: ISDN B-Channel show interfaces Output Fields

Field Name	Field Description	Level of Output
Physical Interface	Name of the physical interface type.	All levels
Enabled	State of the interface. Possible values are described in the “Enabled Fiel” section under Common Output Fields Description.	All levels
Interface index	Physical interface's index number, which reflects its initialization sequence.	detail extensive none
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.	All levels
Link-level type	Encapsulation used on the physical interface.	All levels
MTU	Maximum transmission unit (MTU)—Size of the largest packet to be transmitted.	All levels
Clocking	Reference clock source of the interface.	All levels
Speed	Network speed on the interface.	All levels
Parent	Name and interface index of the interface to which a particular child interface belongs. None indicates that this is the top level.	detail extensive none
Device flags	Information about the physical device. Possible values are described in the “Device Flags” section under Common Output Fields Description.	All levels
Interface flags	Information about the interface. Possible values are described in the “Interface Flags” section under Common Output Fields Description.	All levels
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
Physical info	Information about the physical interface.	detail extensive
Hold-times	Current interface hold-time up and hold-time down. Value is in milliseconds.	detail extensive
Current address	Configured media access control (MAC) address.	detail extensive
Hardware address	MAC address of the hardware.	detail extensive
Alternate link address	Backup address of the link.	detail extensive
CoS queues	Number of class-of-service (CoS) queues configured.	detail extensive none
Last flapped	Date, time, and length of time since the interface changed its status from down to up.	detail extensive none
Input rate	Input rate in bits per second (bps) and packets per second (pps).	none specified
Output rate	Output rate in bps and pps.	none specified
Statistics last cleared	Time when the interface statistics were last set to zero.	detail extensive
Traffic statistics	Number and rate of bytes and packets received and transmitted on the logical and 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.	detail extensive
Input errors	Errors—Input errors on the interface. Drops—Number of packets dropped by the output queue of the I/O Manager ASIC. Framing errors—Number of packets received with an invalid frame checksum (FCS). Runts—Frames received smaller than the runt threshold. Giants—Frames received larger than the giant threshold. Policed discards—Frames that the incoming packet match code discarded because they were not recognized or were not of interest. Usually, this field reports protocols that the Junos OS does not support. Resource errors—Sum of transmit drops.	extensive
Output errors	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, possibly once every 10 seconds, the cable, the remote system, or the interface is malfunctioning. Errors—Sum of 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 dropped by the ASIC RED mechanism. MTU errors—Number of packets larger than the MTU threshold. Resource errors—Sum of transmit drops.	extensive
Queue counters	CoS queue number and its associated user-configured forwarding class name. Queued packets—Number of queued packets. Transmitted packets—Number of transmitted packets. Dropped packets—Number of packets dropped by the ASIC's RED mechanism.	detail extensive
Packet Forwarding Engine configuration	Information about the configuration of the Packet Forwarding Engine: Destination slot—FPC slot number. PLP byte—Packet Level Protocol byte.	extensive
CoS information	Information about the CoS queue for the physical interface. CoS transmit queue—Queue number and its associated user-configured forwarding class name. Bandwidth %—Percentage of bandwidth allocated to the queue. Bandwidth bps—Bandwidth allocated to the queue (in bps). Buffer %—Percentage of buffer space allocated to the queue. Buffer usec—Amount of buffer space allocated to the queue, in microseconds. This value is nonzero only if the buffer size is configured in terms of time. Priority—Queue priority: low or high. Limit—Displayed if rate limiting is configured for the queue. Possible values are none and exact. If exact is configured, the queue transmits only up to the configured bandwidth, even if excess bandwidth is available. If none is configured, the queue transmits beyond the configured bandwidth if bandwidth is available.	extensive
Logical Interface
Logical interface	Name of the logical interface.	All levels
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 extensive
Flags	Information about the logical interface. Possible values are described in the “Logical Interface Flags” section under Common Output Fields Description.	All levels
Encapsulation	Encapsulation on the logical interface.	All levels

Sample Output

show interfaces (ISDN B-Channel)

user@host> show interfaces bc-4/0/0:1

Physical interface: bc-4/0/0:1, Enabled, Physical link is Up
  Interface index: 151, SNMP ifIndex: 75
  Type: Serial, Link-level type: 57, MTU: 4092, Clocking: Internal, 
  Speed: 64kbps,
  Parent: br-4/0/0 Interface index 129
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Link type      : Full-Duplex
  Link flags     : None
  CoS queues     : 8 supported, 8 maximum usable queues
  Last flapped   : 2006-06-13 19:50:38 PDT (14:39:03 ago)
  Input rate     : 0 bps (0 pps)
  Output rate    : 0 bps (0 pps)

  Logical interface bc-4/0/0:1.0 (Index 74) (SNMP ifIndex 79) 
    Flags: Point-To-Point SNMP-Traps Encapsulation: 64

show interfaces brief (ISDN B-Channel)

user@host> show interfaces bc-4/0/0:1 brief

Physical interface: bc-4/0/0:1, Enabled, Physical link is Up
  Type: Serial, Link-level type: 57, MTU: 4092, Clocking: Internal, 
  Speed: 64kbps
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000

  Logical interface bc-4/0/0:1.0 
    Flags: Point-To-Point SNMP-Traps Encapsulation: 64

show interfaces detail (ISDN B-Channel)

user@host> show interfaces bc-4/0/0:1 detail

Physical interface: bc-4/0/0:1, Enabled, Physical link is Up
  Interface index: 151, SNMP ifIndex: 75, Generation: 152
  Type: Serial, Link-level type: 57, MTU: 4092, Clocking: Internal, 
  Speed: 64kbps,
  Parent: br-4/0/0 Interface index 129
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Link type      : Full-Duplex
  Link flags     : None
  Physical info  : Unspecified
  Hold-times     : Up 0 ms, Down 0 ms
  Current address: Unspecified, Hardware address: Unspecified
  Alternate link address: Unspecified
  CoS queues     : 8 supported, 8 maximum usable queues
  Last flapped   : 2006-06-13 19:50:38 PDT (14:39:06 ago)
  Statistics last cleared: Never
  Traffic statistics:
   Input  bytes  :                 4096                    0 bps
   Output bytes  :               128423                   96 bps
   Input  packets:                    0                    0 pps
   Output packets:                 9801                    0 pps
  Egress queues: 8 supported, 8 in use
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0 best-effort                   13                   13                    0
    1 expedited-fo                   0                    0                    0
    2 assured-forw                   0                    0                    0
    3 network-cont                9788                 9788                    0

  Logical interface bc-4/0/0:1.0 (Index 74) (SNMP ifIndex 79) (Generation 140)
    Flags: Point-To-Point SNMP-Traps Encapsulation: 64

show interfaces extensive (ISDN B-Channel)

user@host> show interfaces bc-4/0/0:1 extensive

Physical interface: bc-4/0/0:1, Enabled, Physical link is Up
  Interface index: 151, SNMP ifIndex: 75, Generation: 152
  Type: Serial, Link-level type: 57, MTU: 4092, Clocking: Internal, 
  Speed: 64kbps,
  Parent: br-4/0/0 Interface index 129
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Link type      : Full-Duplex
  Link flags     : None
  Physical info  : Unspecified
  Hold-times     : Up 0 ms, Down 0 ms
  Current address: Unspecified, Hardware address: Unspecified
  Alternate link address: Unspecified
  CoS queues     : 8 supported, 8 maximum usable queues
  Last flapped   : 2006-06-13 19:50:38 PDT (14:39:12 ago)
  Statistics last cleared: Never
  Traffic statistics:
   Input  bytes  :                 4096                    0 bps
   Output bytes  :               128423                    0 bps
   Input  packets:                    0                    0 pps
   Output packets:                 9801                    0 pps
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0, 
    Policed discards: 0, Resource errors: 0
  Output errors:
    Carrier transitions: 4, Errors: 0, Drops: 0, MTU errors: 0, 
    Resource errors: 0
  Egress queues: 8 supported, 8 in use
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0 best-effort                   13                   13                    0
    1 expedited-fo                   0                    0                    0
    2 assured-forw                   0                    0                    0
    3 network-cont                9788                 9788                    0
  Packet Forwarding Engine configuration:
    Destination slot: 4, PLP byte: 1 (0x00)
  CoS information:
    CoS transmit queue              Bandwidth         Buffer   Priority  Limit
                              %           bps    %    usec
    0 best-effort            95         60800 95       0            low   none
    3 network-control         5          3200  5       0           low    none
Logical interface bc-4/0/0:1.0 (Index 74) (SNMP ifIndex 79) (Generation 140)
    Flags: Point-To-Point SNMP-Traps Encapsulation: 64

Published: 2013-08-13

Supported Platforms

J Series