M7I Router Components; Table 4: M7I Router Major Hardware Components - Juniper M Series Monitoring And Troubleshooting Manual

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M7i Router Components

Table 4: M7i Router Major Hardware Components

Component
CFEB
Cooling system
FIC
PIC
Power supply
Routing Engine
Copyright © 2012, Juniper Networks, Inc.
The M7i router supports various PICs, including ATM, channelized, Ethernet, IP services,
and SONET/SDH interfaces. For more information about supported PICs, see the M7i
Multiservice Edge Router PIC Guide.
The M7i router provides a maximum aggregate throughput of 8.4 gigabits per second
(Gbps). Control operations in the router are perform Control operations in the router are
performed by the Routing Engine, which runs the Junos OS operating system (OS) to
handle routing protocols, traffic engineering, policy, policing, monitoring, and configuration
management. Forwarding operations in the router are performed by the Packet Forwarding
Engine.
M7i Router Components on page 7
Table 4 on page 7 lists the major M7i router components and characteristics.
Quantity Function
1 Provides route lookup, management of
shared memory, transfer of outgoing data
packets, and transfer of exception and
control packets; includes built-in tunnel
interface and optional Adaptive Services
PIC
1 fan tray Cools router components
(4 fans)
1 Receives incoming packets and transmits
outgoing packets to the network, displays
alarm status, and takes PICs online and
offline (2 Fast Ethernet or 1 Gigabit
Ethernet)
1–4 Provides interfaces to various network
media and performs framing and
line-speed signaling
2 AC or Distributes needed voltages to
2 DC components
1 Maintains the routing tables, manages the
routing protocols, controls the interfaces,
controls some chassis components, and
provides the interface for system
management and user access
Chapter 1: M Series Multiservice Edge Routers
Field-
Redundant Replaceable
– Hot-pluggable
(routing
functions are
interrupted
when removed)
– Hot-removable,
hot-insertable
– Built-in
– Hot-removable,
hot-insertable
Yes Hot-removable,
hot-insertable
– Hot-pluggable
(routing
functions are
interrupted
when removed)
Offline
Button
Yes
–
PICs
On/Off
button
Yes
Yes
Yes
7