show interfaces (Channelized T1 IQ)

Physical interface

Name of the physical interface.

All levels

Enabled

State of the interface. Possible values are described in Enabled Field.

All levels

Interface index

Physical interface's index number, which reflects its initialization sequence.

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SNMP ifIndex

SNMP index number for the physical interface.

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Generation

Unique number for use by Juniper Networks technical support only.

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Link-level type

Encapsulation being used on the physical interface.

All levels

MTU

MTU size on the physical interface.

All levels

Clocking

Reference clock source. It can be Internal or External.

All levels

Speed

Speed at which the interface is running.

All levels

Loopback

Whether loopback is enabled and the type of loopback (local or remote).

All levels

FCS

Frame check sequence on the interface (either 16 or 32). The default is 16 bits.

All levels

Framing

Physical layer framing format used on the link. It can be ESF or SF. The default is ESF.

All levels

Parent

Name and interface index of the interface to which a particular child interface belongs. None indicates that this interface is the top level.

All levels

Device flags

Information about the physical device. Possible values are described in Device Flags.

All levels

Interface flags

Information about the interface. Possible values are described in Interface Flags.

All levels

Link flags

Information about the link. Possible values are described in Link Flags.

All levels

Hold-times

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

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Keepalive settings

Configured settings for keepalives.

• interval seconds—The time in seconds between successive keepalive requests. The range is 10 seconds through 32,767 seconds, with a default of 10 seconds.
• down-count number—The number of keepalive packets a destination must fail to receive before the network takes a link down. The range is 1 through 255, with a default of 3.
• up-count number—The number of keepalive packets a destination must receive to change a link's status from down to up. The range is 1 through 255, with a default of 1.

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Keepalive statistics

Information about keepalive packets.

• Input—Number of keepalive packets received by PPP.
  • (last seen 00:00:00 ago)—Time since the last keepalive packet was received, in the format hh:mm:ss.
• Output—Number of keepalive packets sent by PPP and how long ago the last keepalive packets were sent and received.
  • (last seen 00:00:00 ago)—Time since the last keepalive packet was sent, in the format hh:mm:ss.

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LMI settings

(Frame Relay) Settings for Local Management Interface (LMI) can be either ANSI LMI settings or ITU LMI settings. ANSI LMI settings is the default. The format is (ANSI or ITU) LMI settings: value, value... xx seconds, where value can be:

• n391dte—DTE full status polling interval (1–255)
• n392dce—DCE error threshold (1–10)
• n392dte—DTE error threshold (1–10)
• n393dce—DCE monitored event count (1–10)
• n393dte—DTE monitored event count (1–10)
• t391dte—DTE polling timer (5–30 seconds)
• t392dce—DCE polling verification timer (5–30 seconds)

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LMI

(Frame Relay) LMI packet statistics:

• Input—Number of packets coming in on the interface (nn) and how much time has passed since the last packet arrived. The format is Input: nn (last seen hh:mm:ss ago).
• Output—Number of packets sent out on the interface (nn) and how much time has passed since the last packet was sent. The format is Output: nn (last sent hh:mm:ss ago).

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DTE statistics

(Frame Relay) Statistics about messages transmitted from the data terminal equipment (DTE) to the data communication equipment (DCE):

• Enquiries sent—Number of link status enquiries sent from the DTE to the DCE.
• Full enquiries sent—Number of full enquiries sent from the DTE to the DCE.
• Enquiry responses received—Number of enquiry responses received by the DTE from the DCE.
• Full enquiry responses received—Number of full enquiry responses sent from the DTE to the DCE.

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DCE statistics

(Frame Relay) Statistics about messages transmitted from the DCE to the DTE:

• Enquiries received—Number of enquiries received by the DCE from the DTE.
• Full enquiries received—Number of full enquiries received by the DCE from the DTE.
• Enquiry responses sent—Number of enquiry responses sent from the DCE to the DTE.
• Full enquiry responses sent—Number of full enquiry responses sent from the DCE to the DTE.

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Common statistics

(Frame Relay) Statistics about messages sent between the DTE and the DCE:

• Unknown messages received—Number of received packets that do not fall into any category.
• Asynchronous updates received—Number of link status peer changes received.
• Out-of-sequence packets received—Number of packets for which the sequence of the packets received is different from the expected sequence.
• Keepalive responses timedout—Number of keepalive responses that timed out when no LMI packet was reported for n392dte or n393dce intervals. (See LMI settings.)

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Nonmatching DCE-end DLCIs

(Frame Relay) Number of DLCIs configured from the DCE, displayed only from the DTE.

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LCP state

(PPP) Link Control Protocol state.

• Conf-ack-received—Acknowledgement was received.
• Conf-ack-sent—Acknowledgement was sent.
• Conf-req-sent—Request was sent.
• Down—LCP negotiation is incomplete (not yet completed or has failed).
• Not-configured—LCP is not configured on the interface.
• Opened—LCP negotiation is successful.

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NCP state

(PPP) Network Control Protocol state.

• Conf-ack-received—Acknowledgement was received.
• Conf-ack-sent—Acknowledgement was sent.
• Conf-req-sent—Request was sent.
• Down—NCP negotiation is incomplete (not yet completed or has failed).
• Not-configured—NCP is not configured on the interface.
• Opened—NCP negotiation is successful.

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CHAP state

(PPP) Displays the state of the Challenge Handshake Authentication Protocol (CHAP) during its transaction.

• Chap-Chal-received—Challenge was received but response not yet sent.
• Chap-Chal-sent—Challenge was sent.
• Chap-Resp-received—Response was received for the challenge sent, but CHAP has not yet moved into theSuccess state. (Most likely with RADIUS authentication.)
• Chap-Resp-sent—Response was sent for the challenge received.
• Closed—CHAP authentication is incomplete.
• Failure—CHAP authentication failed.
• Not-configured—CHAP is not configured on the interface.
• Success—CHAP authentication was successful.

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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).

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CoS queues

Number of CoS queues configured.

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Statistics last cleared

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

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Traffic statistics

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

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

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Input errors

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

• 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).
• Giants—Number of frames received that are larger than the giant threshold.
• Runts—Number of frames received that are smaller than the runt 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 software does not handle.
• L3 incompletes—Number of incoming packets discarded because they failed Layer 3 (usually IPv4) sanity checks of the header. For example, a frame with less than 20 bytes of available IP header is discarded.
• L2 channel errors—Counter increments when the software could not find a valid logical interface for an incoming frame.
• L2 mismatch timeouts—Count of malformed or short packets that caused the incoming packet handler to discard the frame as unreadable.
• HS link CRC errors—Count of errors on the high-speed links between the ASICs responsible for handling the router interfaces.
• SRAM errors—Number of hardware errors that occurred in the static RAM (SRAM) on the PIC. If the value in this field increments, the PIC is malfunctioning.
• Resource errors—Sum of transmit drops.

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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 fromdown 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 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.
• Aged packets—Number of packets that remained in shared packet SDRAM so long that the system automatically purged them. The value in this field should never increment. If it does, it is most likely a software bug or possibly malfunctioning hardware.
• MTU errors—Number of packets whose size exceeds the MTU of the interface.
• Resource errors—Sum of transmit drops.

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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.

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DS1 alarms DS1 defects

Media-specific defects that can render the interface unable to pass packets. When a defect persists for a certain amount of time, it is promoted to an alarm. Based on the router configuration, an alarm can ring the red or yellow alarm bell on the router, or turn on the red or yellow alarm LED on the craft interface.

• LOS—Loss of signal.
• LOF—Loss of frame.
• AIS—Alarm indication signal.
• YLW—Yellow alarm. Indicates errors at the remote site receiver.

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T1 media

Counts of T1 media-specific errors.

• Seconds—Number of seconds the defect has been active.
• Count—Number of times that the defect has gone from inactive to active.
• State—State of the error. State other than OK indicates a problem.

The T1 media-specific error types can be:

• AIS—Alarm indication signal
• BEE—Bit error event
• BES—Bit error seconds
• BPV—Bipolar violation
• CS—Carrier state
• ES—Errored seconds
• EXZ—Excessive zeros
• FEBE—Far-end block error
• LCV—Line code violation
• LES—Line error seconds
• LOF—Loss of frame
• LOS—Loss of signal
• PCV—Pulse code violation
• SEF—Severely errored framing
• SEFS—Severely errored framing seconds (section)
• SES—Severely errored seconds
• UAS—Unavailable seconds
• YELLOW—Errors at the remote site receiver

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Line encoding

Line encoding used: B8ZS or AMI.

All levels

Buildout

Buildout setting.

All levels

HDLC configuration

Information about the HDLC configuration.

• Policing bucket—Configured state of the receiving policer.
• Shaping bucket—Configured state of the transmitting shaper.
• Giant threshold—Giant threshold programmed into the hardware.
• Runt threshold—Runt threshold programmed into the hardware.
• Timeslots—Configured time slots for the interface.
• Line encoding—Line encoding used: B8ZS or AMI.
• Byte encoding—Byte encoding used: Nx64K or Nx56K.
• Data inversion—HDLC data inversion setting: Enabled or Disabled.
• Idle cycle Flag—Idle cycle flags.
• Start end Flag—Start and end flag.

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DS0 or DS1 BERT configuration

BERT (bit error rate test) checks the quality of the line. This output appears only when a BERT is run on the interface.

• BERT time period—Configured total time period that the BERT is to run.
• Elapsed—Actual time elapsed since the start of the BERT (in seconds).
• Induced error rate—Configured rate at which the bit errors are induced in the BERT pattern.
• Algorithm—Type of algorithm selected for the BERT.

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Packet Forwarding Engine configuration

Information about the configuration of the Packet Forwarding Engine:

• Destination slot—FPC slot number.
• PLP byte—Packet Level Protocol byte.

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Logical interface

Name of the logical interface.

All levels

Index

Logical interface index number, which reflects its initialization sequence.

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SNMP ifIndex

Logical interface SNMP interface index number.

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Generation

Unique number for use by Juniper Networks technical support only.

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Flags

Information about the logical interface; values are described in Logical Interface Flags.

All levels

Encapsulation

Encapsulation on the logical interface.

All levels

Protocol

Protocol family configured on the logical interface, such as iso, inet6, or mpls.

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MTU

MTU size on the logical interface.

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Generation

Unique number for use by Juniper Networks technical support only.

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Route table

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

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Flags

Information about the protocol family flags. Possible values are described in Family Flags.

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Addresses, Flags

Information about the address flags. Possible values are described in Addresses, Flags.

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Destination

IP address of the remote side of the connection.

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Local

IP address of the logical interface.

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Broadcast

Broadcast address.

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Generation

Unique number for use by Juniper Networks technical support only.

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DLCI

(Frame Relay) DLCI number of the logical interface. The following DLCI information is displayed: Flags, Total down time, Last down, and Traffic statistics. Flags is one or more of the following:

• Active—Set when the link is active and the DTE and DCE are exchanging information.
• Down—Set when the link is active, but no information is received from the DCE.
• Unconfigured—Set when the corresponding DLCI in the DCE is not configured.
• Configured—Set when the corresponding DLCI in the DCE is configured.
• Dce-configured—Displayed when the command is issued from the DTE.

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DLCI statistics

(Frame Relay) Data-link connection identifier (DLCI) statistics.

• Active DLCI—Number of active DLCIs.
• Inactive DLCI—Number of inactive DLCIs.

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