Understanding Redundant Routing Engines; Redundant Routing Engine Characteristics - Juniper JUNOS - NETWORK OPERATION GUIDE REV1 Network Operation Manual

Understanding Redundant Routing Engines

Inspect redundant Routing Engines to minimize system process failures.
Purpose
Redundant Routing Engines are two Routing Engines that are installed in the same
What Are Redundant
router. One functions as the master, while the other stands by as a backup should
Routing Engines
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
Component
Redundant Routing Engine
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
The following sections describe the various routing platform Routing Engines:
!
!
!
!
!
M10i M20 M40
X X
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
Chapter 37: Monitoring Redundant Routing Engines
M40e M160 M320
X X
X
Understanding Redundant Routing Engines
T320/
T640
X
!
493