Use Of Status Leds To Monitor The High Availability States Of Line Modules; Monitoring The Redundancy Status Of Line Modules In A Specific Slot - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual

Related
Documentation

Use of Status LEDs to Monitor the High Availability States of Line Modules

Related
Documentation

Monitoring the Redundancy Status of Line Modules in a Specific Slot

Purpose
Action
host1#show redundancy line-card slot 3
Line Card
---------
automatic reverting is off
High last
Availability activation
slot State type
---- -------- ---------
3 disabled
Criteria Preventing High Availability from being Active
-------------------------------------------------------
slot
--- ----------------------------------------------------
3 Running configuration is safe for High Availability?
Copyright © 2010, Juniper Networks, Inc.
impacted by the improvements made to the compatible protocols and applications. In
a scaled topology, simultaneous switchover of all the line modules in a chassis is
supported. The operations of line modules that no not support stateful switchover is also
not impacted in any manner, owing to the changes made to HA-safe applications.
Application Support for Stateful Line Module Switchover on page 79
System Operations When Stateful Line Module Switchover Is Enabled on page 74
You can determine the redundancy state of line modules and SRP modules by examining
their status LEDs. The LED on the line module denotes the state of the line module. In
addition, if you issue the show version command, the state field for the slot that contains
the redundant line module indicates standby. The following are the functions of the LEDs
for the different states of the line modules in a high availability pair:
OK LED—This LED is turned off while the secondary line module is switching over
ONLINE LED—There is no difference in the method of illumination of this LED, regardless
of whether line module high availability is enabled.
REDUNDANT LED—This LED is turned on for the secondary line module and is not
illuminated for the primary line module.
Monitoring the Redundancy Status of Line Modules in a Specific Slot on page 95
Monitoring the Redundancy History of Line Modules in a Specific Slot on page 97
Display the supported redundancy modes as well as other status relating to high
availability for a line module installed in a particular slot.
To display the redundancy information of a line module in a particular slot.
hardware lockout
role config
------- ------
cold --- ---
criterion
Chapter 4: Managing Stateful Line Module Switchover
backed
up sparing
by for revert
slot slot
------ ------- ------
--- ---
met
---
No
at
---
95