Juniper M Series User Manual

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.
Related
Documentation
M7i Router Components on page 7•
M7i Router Components
Table 4 on page 7 lists the major M7i router components and characteristics.
Table 4: M7i Router Major Hardware Components
Offline
Button
Field-
ReplaceableRedundantFunctionQuantityComponent
YesHot-pluggable
(routing
functions are
interrupted
when removed)
–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
1CFEB
–Hot-removable,
hot-insertable
–Cools router components1 fan tray
(4 fans)
Cooling system
PICs
On/Off
button
Built-in–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)
1FIC
YesHot-removable,
hot-insertable
–Provides interfaces to various network
media and performs framing and
line-speed signaling
1–4PIC
YesHot-removable,
hot-insertable
YesDistributes needed voltages to
components
2 AC or
2 DC
Power supply
YesHot-pluggable
(routing
functions are
interrupted
when removed)
–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
1Routing Engine
7Copyright © 2012, Juniper Networks, Inc.
Chapter 1: M Series Multiservice Edge Routers

Juniper M Series Specifications

General

Brand	Juniper
Model	M Series
Category	Network Router
Language	English