show interfaces (TGM550 Module)

Physical interface

Name of the physical interface.

All levels

Enabled

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

All levels

Description

Configured interface description.

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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Type

Type of interface.

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Link-level type

Encapsulation being used on the physical interface—VP-AV.

All levels

MTU

MTU size on the physical interface.

All levels

Speed

Speed in megabits per second (mbps) at which the interface is running.

All levels

Device flags

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

All levels

Link type

Physical interface link type: Full-Duplex or Half-Duplex.

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Link flags

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

All levels

Physical info

Information about the physical interface.

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CoS queues

Number of CoS queues configured.

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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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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 statistics for the interface were last set to zero.

detail extensive

Traffic statistics

Statistics for traffic on the 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.

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Input errors

Input errors on the interface:

• Errors—Sum of the incoming frame aborts and frame check sequence (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 random early detection (RED) mechanism.
• 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—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.
• 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 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 up, or another problem occurs. If the number of carrier transitions increments quickly, increasing only when the cable is unplugged, the far-end system is powered down and then up, or another problem occurs. If it 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 larger than the MTU threshold.
• Resource errors—Sum of transmit drops.

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Egress queues

Total number of egress queues supported on the specified interface.

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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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Packet Forwarding Engine configuration

Information about the configuration of the Packet Forwarding Engine:

• Destination slot—FPC slot number.
• CoS transmit queue—Queue number and its associated user-configured forwarding class name.
• bandwidth %—Percentage of bandwidth allocated to the queue. The default is 25 percent.
• Bandwidth bps—Bandwidth allocated to the queue (in bps).
• buffer %—Percentage of buffer space allocated to the queue. The default is 25 percent.
• 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:
  • exact—The queue transmits only up to the configured bandwidth, even if excess bandwidth is available.
  • none—The queue transmits beyond the configured bandwidth if bandwidth is available.

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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. Possible values are described in Logical Interface Flags.

All levels

protocol-family

Protocol family configured on the logical interface. If the protocol is inet, the IP address of the interface is also displayed.

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Protocol

Protocol family configured on the logical interface.

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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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