show interfaces fti

Physical interface

Name of the physical interface and state of the interface.

Enabled

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

Interface index

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

SNMP ifIndex

SNMP index number for the physical interface.

Generation

Unique number for use by Juniper Networks technical support only.

Link-level type

Encapsulation being used on the physical interface. Possible values: Flexible- tunnel-Interfaces

MTU

Maximum transmission unit size on the physical interface.

Clocking

Reference clock source of the interface.

Speed

Speed at which the interface is running.

Device flags

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

Interface flags

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

Link-type

Data transmission type.

Link-flags

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

Last flapped

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

Input packets

Number of packets received on the physical interface.

Output packets

Number of packets transmitted on the physical interface.

Physical-info

Information about the physical interface.

Hold-times

Current interface hold-time up and hold-time down. Value is in milliseconds.

Damping

Provides a smoothing of the up and down transitions (flapping) on an interface.

• halflife— Decay half-life. The number of seconds after which the accumulated interface penalty counter is reduced by half if the interface remains stable.

• max-suppress— Maximum hold-down time. The maximum number of seconds that an interface can be suppressed irrespective of how unstable the interface has been.

• reuse— Reuse threshold. When the accumulated interface penalty counter falls below this number, the interface is no longer suppressed.

• suppress— Cutoff (suppression) threshold. When the accumulated interface penalty counter exceeds this number, the interface is suppressed.

• state— Interface damping state. If damping is enabled on an interface, it is suppressed during interface flaps that match the configured damping parameters.

Current address

Configured MAC address.

Hardware address

Hardware MAC address.

Alternate-link-address

Backup link address.

Statistics last cleared

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

Traffic statistics

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

• Input bytes—Number of bytes and rate, in bps, at which bytes are received on the interface.

• Output bytes—Number of bytes and rate, in bps, at which bytes are transmitted on the interface.

• Input packets—Number of packets and rate, in pps, at which packets are received on the interface.

• Output packets—Number of packets and rate, in pps, at which packets are transmitted on the interface.

Input errors

Input errors on the interface:

• Errors—Sum of incoming frame terminates and frame checksum (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 FCS.

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

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

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

• Resource errors—Sum of transmit drops.

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), then the cable, the far-end system, or the PIC is malfunctioning.

• Errors—Sum of the outgoing frame terminates 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.

IPv6 transit statistics

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

• 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.

Logical interface

Name of the logical interface.

Index

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

SNMP ifIndex

SNMP interface index number of the logical interface.

Generation

Unique number for use by Juniper Networks technical support only.

Flags

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

Encapsulation

Encapsulation on the logical interface.

Destination UDP Port

Value to write to the destination-udp-port field.

Source UDP Port Range

Value to write to the source-udp-port-range field.

• min min-port-number: 1 through 65,535

• max max-port-number: 1 through 65,535

VNI

Value to write to the vni attribute

Source address

IP address of the source side of the connection.

Transit Statistics

Statistics for traffic transiting 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.

Protocol inet, MTU

Protocol family configured on the logical interface. If the protocol is inet, the IP address of the interface is also displayed. MTU is the maximum transmission unit size on the logical interface

Max nh cache

Maximum interface neighbor discovery nexthop cache size.

New hold nh limit

Maximum number of new unresolved nexthops.

Curr nh cnts

Current number of resolved next-hop addresses.

Curr new hold cnt

Current number of unresolved next-hop addresses.

NH drop cnt

Number of neighbor discovery requests not serviced

Flags

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

Route Table

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

Flags

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

Addresses, Flags

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

Destination address

IP address of the remote side of the connection.

Local

IP address of the logical interface.

Broadcast

Broadcast address of the logical interface.