Juniper JUNOS - NETWORK OPERATION GUIDE REV1 User Manual

JUNOS Internet Software Network Operations Guide: Hardware
8 ! M7i Router Components
In addition to accommodating up to four Physical Interface Cards (PICs), the M7i
router includes a built-in Fixed Interface Card (FIC) that provides two Fast Ethernet
ports or one Gigabit Ethernet port, depending on which FIC or which model was
ordered. For more information about Fast Ethernet and Gigabit Ethernet interfaces,
see the M7i Internet Router PIC Guide.
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 Internet 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 JUNOS software 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
Table 4 lists the major M7i router components and characteristics.
Table 4: M7i Router Major Hardware Components
Component Quantity Function Redundant
Field-
Replaceable
Offline
Button
CFEB 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
– Hot-pluggable
(routing functions
are interrupted
when removed)
Yes
Cooling system 1 fan tray
(4 fans)
Cools router components – Hot-removable,
hot-insertable
–
FIC 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)
–Built-inPICs
On/Off
button
PIC 1–4 Provides interfaces to various network
media and performs framing and
line-speed signaling
– Hot-removable,
hot-insertable
Yes
Power supply 2 AC or
2 DC
Distributes needed voltages to
components
Yes Hot-removable,
hot-insertable
Yes
Routing Engine 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
– Hot-pluggable
(routing functions
are interrupted
when removed)
Yes

Juniper JUNOS - NETWORK OPERATION GUIDE REV1 Specifications

General

Brand	Juniper
Model	JUNOS - NETWORK OPERATION GUIDE REV1
Category	Software
Language	English