show interfaces (Channelized DS3-to-DS0)
Syntax
show interfaces ds-fpc/pic/port:t1channel:ds0channel<brief | detail | extensive><descriptions><media><snmp-indexsnmp-index><statistics>Release Information
Command introduced before JUNOS Release 7.4.
Description
(M-series and T-series routing platforms only) Display status information about the specified channelized DS3-to-DS0 interface. (You can include wildcard characters in the interface name to list more than one channelized DS3-to-DS0 interface. See Interface Types.)
Options
brief | detail | extensive—(Optional) Display brief interface information.
descriptions—(Optional) Display interface description strings.
media—(Optional) Display media-specific information about network interfaces.
snmp-indexsnmp-index—(Optional) Display information for the specified SNMP index of the interface.
statistics—(Optional) Display static interface statistics.Required Privilege Level
List of Sample Output
show interfaces extensive (Channelized DS3-to-DS0)Output Fields
Table 80 lists the output fields for the
show interfaces(all Channelized DS3 interfaces) command. Output fields are listed in the approximate order in which they appear.
State of the interface. Possible values are described in Enabled Field.
Physical interface's index number, which reflects its initialization sequence.
Unique number for use by Juniper Networks technical support only.
Whether loopback is enabled and the type of loopback (
localorremote).Frame check sequence on the interface (either
16or32). The default is16bits.Physical layer framing format used on the link. It can be
ESForSF. The default isESF.(Channelized IQ interfaces only) Name and interface index of the interface to which a particular child interface belongs.
Noneindicates that this interface is the top level.Information about the physical device. Possible values are described in Device Flags.
Information about the interface. Possible values are described in Interface Flags.
Information about the link. Possible values are described in Link Flags.
Current interface hold-time up and hold-time down, in milliseconds.
(PPP and HDLC) Configured settings for keepalives.
intervalseconds—The time in seconds between successive keepalive requests. The range is10seconds through32,767seconds, with a default of10seconds.down-countnumber—The number of keepalive packets a destination must fail to receive before the network takes a link down. The range is1through255, with a default of3.up-countnumber—The number of keepalive packets a destination must receive to change a link's status from down to up. The range is1through255, with a default of1.(Frame Relay) Settings for Local Management Interface (LMI) can be either
ANSI LMI settingsorITU LMI settings. ANSI LMI settings is the default. The format is(ANSI or ITU) LMI settings:value,value...xxseconds, wherevaluecan be:(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 isInput:nn(last seenhh:mm:ssago).Output—Number of packets sent out on the interface (nn) and how much time has passed since the last packet was sent. The format isOutput:nn(last senthh:mm:ssago).(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 theSuccessstate. (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.Date, time, and how long ago the interface went from down to up. The format is
Last flapped:year-month-day hour:minute:secondtimezone(hour:minute:secondago). For example,Last flapped: 2002-04-26 10:52:40 PDT (04:33:20 ago).Time when the statistics for the interface were last set to zero.
Number and rate of bytes and packets received and transmitted on the physical interface.
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.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.HS link CRC errors—Count of errors on the high-speed links between the ASICs responsible for handling the router interfaces.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 fromdowntoup. This number does not normally increment quickly, increasing only when the cable is unplugged, the far-end system is powered down and 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.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.
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:
SEF—Severely errored framingBEE—Bit error eventAIS—Alarm indication signalLOF—Loss of frameLOS—Loss of signalYELLOW—Errors at the remote site receiverBPV—Bipolar violationEXZ—Excessive zerosLCV—Line code violationPCV—Pulse code violationCS—Carrier stateLES—Line error secondsES—Errored secondsSEFS—Severely errored framing seconds (section)SES—Severely errored secondsBES—Bit error secondsUAS—Unavailable secondsCounts of T3 media-specific errors. For detailed definitions of the T3 (DS-3) error events (BPV, EXZ, LCV, PCV, and CCV) and performance parameters (LES, PES, PSES, CES, CSES, SEFS, and UAS), see RFC 2496.
PLL Lock—Phase-locked loop out of lockReframing—Frame alignment recovery timeAIS—Alarm indication signalLOF—Loss of frameLOS—Loss of signalIDLE—Idle code detectedYELLOW—Remote defect indicationBPV—Bipolar violationEXZ—Excessive zerosLCV—Line code violationPCV—Pulse code violationCCV—C-bit coding violationLES—Line error secondsPES—P-bit errored seconds- PSES—P-bit errored seconds (section)
CES—C-bit errored secondsCSES—C-bit severely errored secondsSEFS—Severely errored framing secondsUAS—Unavailable secondsName of the transmit queues and their associated statistics for each DS1 channel on the Channelized DS3-to-DS1 PIC.
BERT (bit error rate test) checks the quality of the line. This output appears only when a BERT is run on the interface.
Information about the configuration of the Packet Forwarding Engine:
Destination slot—FPC slot number.PLP byte—Packet Level Protocol byte.CoS transmit queue—The 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. Possible values arelowandhigh.Limit—Displayed if rate limiting is configured for the queue. Possible values arenoneandexact. Ifexactis configured, the queue only transmits up to the configured bandwidth, even if excess bandwidth is available. Ifnoneis configured, the queue transmits beyond the configured bandwidth if bandwidth is available.Logical interface index number, which reflects its initialization sequence.
Unique number for use by Juniper Networks technical support only.
Information about the logical interface; values are described in Logical Interface Flags.
Protocol family configured on the logical interface, such as
iso,inet6,mpls.Unique number for use by Juniper Networks technical support only.
Routing table in which the logical interface address is located. For example,
0refers to the routing table inet.0.Information about the protocol family flags. Possible values are described in Family Flags.
Information about the address flags. Possible values are described in Addresses, Flags.
Unique number for use by Juniper Networks technical support only.
(LSQ redundancy) Backup link for Link Services IQ redundancy.
show interfaces extensive (Channelized DS3-to-DS0)
user@host>show interfaces ds-0/0/0:0:0 extensivePhysical interface: ds-0/0/0:0:0, Enabled, Physical link is UpInterface index: 174, SNMP ifIndex: 4298, Generation: 177Link-level type: PPP, MTU: 1504, Clocking: Internal, Speed: 640kbps, FCS: 16,Mode: C/Bit parity, Framing: ESFDevice flags : Present RunningInterface flags: Point-To-Point SNMP-TrapsLink flags : KeepalivesHold-times : Up 0 ms, Down 0 msKeepalive settings: Interval 10 seconds, Up-count 1, Down-count 3Keepalive statistics:Input : 280 (last seen 00:00:09 ago)Output: 286 (last sent 00:00:00 ago)LCP state: OpenedNCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configuredCHAP state: Not-configuredLast flapped : 2002-05-23 17:53:29 PDT (00:46:46 ago)Statistics last cleared: NeverTraffic statistics:Input bytes : 6814 16 bpsOutput bytes : 28840 72 bpsInput packets: 568 0 ppsOutput packets: 893 0 ppsInput errors:Errors: 0, Drops: 0, Framing errors: 39, Policed discards: 0,L3 incompletes: 0, L2 channel errors: 2, L2 mismatch timeouts: 0,HS link CRC errors: 0Output errors:Carrier transitions: 3, Errors: 0, Drops: 0, Aged packets: 0DS1 alarms : NoneDS3 alarms : NoneDS1 defects : NoneDS3 defects : NoneT1 media: Seconds Count StateSEF 0 0 OKBEE 5 1 OKAIS 0 0 OKLOF 0 0 OKLOS 0 0 OKYELLOW 17 1 OKBPV 0 0EXZ 0 0LCV 5 27765PCV 0 0CS 0 0LES 0ES 0SES 5SEFS 10BES 0UAS 0DS3 media: Seconds Count StatePLL Lock 0 0 OKReframing 0 0 OKAIS 0 0 OKLOF 0 0 OKLOS 0 0 OKIDLE 0 0 OKYELLOW 0 0 OKBPV 1 65535EXZ 1 65535LCV 2 131070PCV 1 1825CCV 0 0LES 1PES 1PSES 1CES 0CSES 0SEFS 0UAS 0Interface transmit queues:B/W WRR Packets Bytes Drops ErrorsQueue0 95 95 0 0 0 0Queue1 5 5 893 28840 0 0HDLC configuration:Giant threshold: 1514, Runt threshold: 3Timeslots : 1-10Byte encoding: Nx64K, Data inversion: DisabledDS3 BERT configuration:BERT time period: 10 seconds, Elapsed: 0 secondsAlgorithm: Unknown (0), Induced error rate: 10e-0DS1 BERT configuration:BERT time period: 10 seconds, Elapsed: 0 secondsInduced Error rate: 10e-0, Algorithm: 2^15 - 1, O.151, Pseudorandom (9)Packet Forwarding Engine configuration:Destination slot: 0, PLP byte: 2 (0x01)CoS transmit queue Bandwidth Buffer Priority Limit% bps % usec0 best-effort 95 608000 95 0 low none3 network-control 5 32000 5 0 low noneLogical interface ds-0/0/0:0:0.0 (Index 5) (SNMP ifIndex 4299)(Generation 943)Flags: Point-To-Point SNMP-Traps Encapsulation: PPPProtocol inet, MTU: 1500, Generation: 949, Route table: 0Flags: NoneAddresses, Flags: Is-Preferred Is-PrimaryDestination: 18.18.18.1, Local: 18.18.18.2, Broadcast: Unspecified,Generation: 1849