Monitoring routing information – Juniper Networks J-Series User Manual

Page 137

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Table 51: Summary of Key Interfaces Output Fields (continued)

Additional Information

Values

Field

Interfaces are enabled by default. To disable an
interface:

In the J-Web configuration editor, select the
Disable check box on the
Interfaces>interfaces-name page.

In the CLI configuration editor, add the

disable

statement at the

[edit interfaces interfaces-name]

level of the configuration hierarchy

Whether the interface is enabled up (

Up

) or disabled

(

Down

).

Admin
State

Maximum transmission unit (MTU) size on the physical
interface.

MTU

Speed at which the interface is running.

Speed

Configured media access control (MAC) address.

Current
Address

Hardware MAC address.

Hardware
Address

Date, time, and how long ago the interface changed
state from

Down

to

Up

.

Last
Flapped

Configure alarms on interfaces as follows:

In the J-Web configuration editor, on the
Chassis>Alarm>interface-type page

In the CLI configuration editor, with the

alarm

statement at the

[edit chassis]

level of the

configuration hierarchy

List of any active alarms on the interface.

Active
Alarms

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

Traffic
Statistics

Input errors on the interface. (See the following rows
of this table for specific error types.)

Input Errors

If the interface is saturated, this number increments
once for every packet that is dropped by the Services
Router's random early detection (RED) mechanism.

Number of packets dropped by the output queue.

Drops

Sum of ATM Adaptation Layer (AAL5) packets that
have frame check sequence (FCS) errors, AAL5 packets
that have reassembly timeout errors, and AAL5
packets that have length errors.

Framing
errors

Number of packets dropped as a result of routing
policies configured on the interface.

Policed
discards

Monitoring Routing Information

The J-Web interface provides information about routing tables and routing protocols.

Using the Monitoring Tools

115

Chapter 7: Monitoring the Router and Routing Operations

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