Product Overview 1-25
Overview of the Cisco 12008
A Cisco 12008 that is configured for full redundancy contains the following cards in the
upper card cage:
•Two RP s
•Two CS Cs
•As many as six Cisco 12000 series line cards of any type and any combination
The following sections briefly describe the cards that you can use to populate the upper card
cage.
Gigabit Route Processor
Each Cisco12008 GSR has one main system (or route) processor. The route processor (RP)
processes the network routing protocols and distributes updates to the Cisco Express
Forwarding (CEF) tables on the line cards. The RP also performs general maintenance
functions, such as diagnostics, console support, and line card monitoring.
Two types of RPs are available for the Cisco12008 GSR:
•Gigabit Route Processor (GRP)
•Performance Route Processor (PRP)
When not explicitly specified, this document uses the term route processor (RP) to indicate
either the GRP or the PRP.
Note If you install a second, redundant RP, it must be of the same type as the primary RP.
This section describes the GRP and includes the following information:
•Memory components
•System status LEDs
•Soft reset switch
•Personal Computer Memory Card Industry Association (PCMCIA) slots, which are
used to transmit data to or from Flash memory cards