Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

Junos ®
OS 12.3 Ethernet Interfaces Configuration Guide
Table 37: Commands Used to Perform Loopback Testing on
Interfaces (continued)
CLI Statement or Command
[edit interfaces interface-name]
set no-keepalives
show interfaces interface-name terse
ping interface t1- x/x/x local-IP-address
bypass-routing count 1000 rapid
show interfaces interface-name extensive
Locating Interface Alarms
Interface Type
T1, T3, SONET, and
Multichannel DS3
interfaces
T1, T3, and SONET
interfaces
All interfaces
All interfaces
Description
The no-keepalives statement at this level
disables the sending of keepalives on the
physical interface.
Display summary information about interfaces.
(Use to display the status of the logical
interfaces for these interfaces.)
Check the reachability of network hosts by
sending ICMP ECHO_REQUEST messages to
elicit ICMP ECHO_RESPONSE messages from
the specified host.
Use the bypass-routing option to ping a local
system through an interface that has no route
through it.
The count option sends 1000 ping requests
through the system.
Type Ctrl+C to interrupt a ping command.
Display very detailed interface information
about a specific interface.
Problem Locating alarms and errors for the media can be a simple process.
Solution To locate interface alarms and errors, use the show interfaces interface-name extensive
command and examine the output for active alarms and defects.
Monitor Fast Ethernet and Gigabit Ethernet Interfaces
• Checklist for Monitoring Fast Ethernet and Gigabit Ethernet Interfaces on page 602
• Monitor Fast Ethernet and Gigabit Ethernet Interfaces on page 603
• Fiber-Optic Ethernet Interface Specifications on page 610
Checklist for Monitoring Fast Ethernet and Gigabit Ethernet Interfaces
602
Purpose To monitor Fast Ethernet and Gigabit Ethernet interfaces and begin the process of isolating
interface problems when they occur.
Action Table 38 on page 603 provides links and commands for monitoring Fast Ethernet and
Gigabit Ethernet interfaces.
Copyright © 2012, Juniper Networks, Inc.