Juniper M Series User Manual

Figure 284: M120 Router Redundant Host Subsystems
g006092
0
1
2
3
4
5
ACTIVE FPC
ONLINE/
OFFLINE
ACTIVE
FAIL
OK
ACTIVE
FAIL
OK
ACTIVE
FAIL
OK
ACTIVE
FAIL
OK
ACTIVE
FAIL
FAIL
MSTR
OK
OK
ONLINE/
OFFLINE
ONLINE/
OFFLINE
ONLINE/
OFFLINE
ONLINE/
OFFLINE
ONLINE/
OFFLINE
ONLINE/
OFFLINE
FAIL
MSTR
OK
ONLINE/
OFFLINE
0
1
2
3
4
5
ACTIVE FPC
0
1
2
3
4
5
ACTIVE FPC
0
1
2
3
4
5
ACTIVE FPC
0
1
2
3
4
5
ACTIVE FPC
PEM 1
PEM 0
CB1
FEB 5
FEB 4
FEB 3
FEB 2
FEB 1
FEB 0
CB 0
PEM 1
PEM 0
CB1
FEB 5
FEB 4
FEB 3
FEB 2
FEB 1
FEB 0
CB 0
Routing
Engine 0
CB0
RESET
RESET
OFFLINE
OFFLINE
ONLINE
ONLINE
HDD
HDD
Routing
Engine 1
CB1
Related
Documentation
Redundancy Connection for an M120 Router on page 573•
M320 Router, T320 Router, T640 Router, and T1600 Router Redundant Host
Subsystems
On the M320 router, T320 router, T640 router, and the T1600 router, the host subsystem
consists of a Routing Engine and Control Board functioning as a unit. Two host subsystems
can be installed in each routing platform. One pair functions as master, while the other
stands by as backup should the master Routing Engine fail. (See Figure 285 on page 569.)
Copyright © 2012, Juniper Networks, Inc.568
M Series and T Series Routers Monitoring and Troubleshooting Guide

Juniper M Series Specifications

General

Brand	Juniper
Model	M Series
Category	Network Router
Language	English