JUNOS Internet Software Network Operations Guide: Hardware
Monitor Redundant Routing Engine Tasks Command or Action
Manually Switching from Master to Backup Routing Engine on page 504 request chassis routing-engine master release request chassis routing-engine master switch
Replacing a Redundant Routing Engine on page 506 See “Removing a Routing Engine” on page 161.
See Also !
Monitoring the Host Module on page 341
!
Monitoring the Routing Engine on page 125
!
Monitoring the MCS on page 359
!
Host Redundancy Overview on page 463
!
Monitoring Redundant MCSs on page 567
!
Monitoring Redundant Control Boards on page 559
492 !
Chapter 37: Monitoring Redundant Routing Engines
Understanding Redundant Routing Engines
Purpose Inspect redundant Routing Engines to minimize system process failures.
What Are Redundant
Routing Engines
Redundant Routing Engines are two Routing Engines that are installed in the same router. One functions as the master, while the other stands by as a backup should the master Routing Engine fail. By default, the Routing Engine in slot 0 is the master
( RE0 ) and the one in slot 1 is the backup ( RE1 ).
Redundant Routing Engine Characteristics
Table 109 describes redundant Routing Engine characteristics for routing platforms.
Table 109: M-series Platform Redundant Routing Engine Characteristics
M20
X
M40 M40e M160 M320
T320/
T640 Component M10i
Redundant Routing Engine X
Redundant host modules with Routing Engine and
MCS
Redundant host subsystems with Routing Engine and
Control Board
Redundant host modules with Routing Engine and
Control Board
X X
X
X
The following sections describe the various routing platform Routing Engines:
!
M10i Router Routing Engine Redundancy on page 494
!
M20 Router Routing Engine Redundancy on page 495
!
M40e and M160 Router Routing Engine Redundancy on page 496
!
M320 Router Routing Engine Redundancy on page 497
!
T320 Router and T640 Routing Node Routing Engine Redundancy on page 498
Understanding Redundant Routing Engines !
493
