show interfaces me0

Physical interface

Name of the physical interface.

Enabled

State of the interface: Enabled or Disabled.

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.

Description

Optional user-specified description.

Type

Information about the type of functional interface.

Link-level type

Encapsulation being used on the physical interface.

MTU

Maximum transmission unit size on the physical interface. The default is 1514.

Clocking

Interface that acts as a clock source. This field is not supported on EX Series switches and the default value is always Unspecified.

Speed

Speed at which the interface is running.

Device flags

Information about the physical device.

Interface flags

Information about the interface.

Link type

Information about whether the link is duplex and whether the negotiation is manual or automatic.

Physical info

Information about the device dependent physical interface selector. This field is applied only when a clocking option is specified. This field is not supported on EX Series switches and the default value is always Unspecified.

Hold-times

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

Current address

Configured MAC address.

Hardware address

MAC address of the hardware.

Alternate link address

Information about alternate hardware address.

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 (weeksw:daysdhour:minute:second ago). For example, Last flapped: 2008–01–16 10:52:40 UTC (3w:3d 22:58 ago).

Statistics last cleared

Time when the statistics for the interface was last set to zero. The format is Last flapped: year-month-day hour:minute:second timezone (weeksw:daysdhour:minute:second ago). For example, Last flapped: 2008–01–16 10:52:40 UTC (3w:3d 22:58 ago).

Traffic statistics

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

Following are fields in Traffic statistics:

• 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.

IPv6 transit statistics

Number and rate of bytes and IPv6 packets received and transmitted on the physical interface.

Following are fields in IPv6 transit statistics:

• 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.

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 terminated and frame checksum (FCS) errors.

• Drops—Number of packets dropped by the input queue of the I/O Manager ASIC.

• 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 packets that exceed the size for the medium. For example, if the medium is Ethernet, the Giant field shows the count of packets with size greater than 1518 bytes.

• 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 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. It increases 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 increment 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 terminated 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.

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 for the logical interface.

Generation

Unique number for use by Juniper Networks technical support only.

Flags

Information about the logical interface.

Encapsulation

Encapsulation on the logical interface.

Traffic statistics

Number and rate of bytes and packets received (input) and transmitted (output) on the specified interface.

IPv6 transit statistics

If IPv6 statistics tracking is enabled, number of IPv6 bytes and packets received and transmitted on the logical interface.

Local statistics

Number and rate of bytes and packets destined to and exiting from the switch.

Protocol

Protocol family.

Generation

Unique number for use by Juniper Networks technical support only.

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.

Input Filter

Ingress filter name.

Output Filter

Egress filter name.

Addresses

Information about the management interface addresses.

Flags

Information about the address flags.

Destination

IP address of the remote side of the connection.

Local

IP address of the logical interface.

Broadcast

Broadcast address of the logical interface.

Generation

Unique number for use by Juniper Networks technical support only.