Understanding Redundancy for the Routing Engine, Host Module, and Host Subsystem ! 467
Chapter 36: Host Redundancy Overview
M40e and M160 Router Redundant Host Modules
On M40e and M160 routers, the host module consists of a paired Routing Engine
and MCS. One pair functions as master, while the other stands by as a backup
should the master Routing Engine fail. (See Figure 185 and “Redundancy
Connection for an M40e or M160 Router” on page 472.)
Figure 185: M40e and M160 Router Redundant Host Modules
PCG 0
SFM 0
SFM 1
MCS 0
RE 0
RE 1
MCS 1
PCG 1
Routing
Engines
Miscellaneous
Control Subsystem
Miscellaneous
Control Subsystem
MCS0
RE0
RE1
MCS1
MCS0
RE0
RE1
MCS1
D
o not ins
tall a
n S
F
M
in this slot
Do not install an SFM in this slot
M40e router rear M160 router rear
PCG 0
SFM 0
SFM 1
MSC 0
RE 0
RE 1
MSC 1
SFM 2
SFM 3
PCG 1
g002293
To Next Page
Loading...
Need help?
General
