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Router Hardware Components

 

Junos OS runs on Juniper Networks routers and Packet Transport Routers, including: ACX Series, J Series, M Series, MX Series, T Series, and PTX Series Packet Transport Routers. Each network device consists of the major hardware components as shown in Table 1. One or more of the major hardware components shown is used in each system.

Note

The ACX Series router is a single-board router with a built-in Routing Engine and one Packet Forwarding Engine. The “pseudo” FPCs and PICs are described in ACX2000 and ACX2100 Routers Hardware and CLI Terminology Mapping.

Table 1: Major Router Hardware Components

 M SeriesMX SeriesT SeriesPTX SeriesJ Series
Routing Engines

X

X

X

X

X

Control Board

X

 

X

X

 
Switch Interface Board (SIB)

X

 

X

X

 
Forwarding Engine Board (FEB)

X

    
Power Supply

X

X

X

X

X

Cooling System

X

X

X

X

X

Dense Port Concentrators (DPC)  

X

   
Switch Control Board (SCB) 

X

   
Flexible PIC Concentrators (FPC)

X

X

X

X

 
Physical Interface Module (PIM)    

X

Physical Interface Card (PIC)

X

X

X

X

 

Flexible PIC Concentrators (FPCs) are each populated by PICs for various interface types. On some routers, the PICs are installed directly in the chassis.

For information about specific components in your router, see the hardware guide for your router.

Related Documentation