JUNOS Internet Software Network Operations Guide: Hardware
The M10i router provides a maximum aggregate throughput of 12.8 gigabits per second (Gbps). 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.
M10i Router Components
Table 5 lists the major M10i router components and characteristics.
Table 5: M10i Router Major Hardware Components
Component
CFEB
Cooling system
FPC
HCM
PIC
Power supply
SFP
Quantity Function Redundant
Field-
Replaceable
Hot-pluggable 1 or 2 Provides route lookup, filtering, and switching on incoming data packets; directs outbound packets to the appropriate FPC for transmission to the network
Yes
2 fan trays
(8 fans)
Cools router components
2
2
Yes
House the PICs that connect the router to network media
Works with a companion Routing Engine to provide control and monitoring functions for router components; displays alarm status; takes PICs online and offline
–
1–8 –
1–4
AC or DC
Provides interfaces to various network media; receives incoming packets from the network and transmits outgoing packets to the network, performing framing and line-speed signaling for their media type; encapsulates outgoing packets received from the FPCs before transmitting them.
Distributes needed voltages to components
Fiber-optic transceivers that connect to
PICs
Yes
–
Hot-removable, hot-insertable
Built-in
Hot-pluggable
Hot-removable, hot-insertable
Hot-removable, hot-insertable
Hot-removable, hot-insertable
Offline
Button
Yes
–
–
–
Yes
(On the
HCM)
Yes
–
Routing Engine 1 or 2 Runs the JUNOS software; maintains the routing tables, manages the routing protocols used on the router, controls the router’s interfaces, controls some chassis components, and provides the interface for system management and user access to the router
Yes Hot-pluggable Yes
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M10i Router Components
