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Cisco IOS Software Requirements
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Product Overview
Cisco IOS Software Requirements
For software configuration information, refer to the Cisco IOS software configuration and command
reference publications for the installed Cisco IOS Release. Also refer to the Cisco IOS software release
notes for additional information.
The GRP line card is supported in Cisco IOS Release 11.2(9)GS and later. GRP configurations with
512 MB of route memory are only compatible with Product Number GRP-B=. Cisco IOS Release
12.0(19)S or 12.0(19)ST or later and ROMMON Release 11.2 (181) or later are also required.
The show version and show hardware commands display the current hardware configuration of the
router, including the system software version that is currently loaded and running.
For complete descriptions of show commands, see the Cisco IOS Configuration Fundamentals
Configuration Guide and the Cisco IOS Configuration Fundamentals Command Reference.
Related Documentation
For additional information, refer to these publications:
• Route Processor Redundancy Plus for the Cisco 12000 Series Internet Router
• Cisco IOS Configuration Fundamentals Configuration Guide
• Cisco IOS Configuration Fundamentals Command Reference
• Cisco IOS Release 12.0S Release Notes for Cisco 12000 Series Internet Routers
Product Overview
Information about the Gigabit Route Processor (GRP), its components, functions, and features, and its
use as the system processor for Cisco 12000 Series Routers is presented in the following sections.
Figure 1 shows the front view of the GRP.
Figure 1 Gigabit Route Processor (Front Panel, Horizontal Orientation)
Note In order to maintain Class B EMI compliance, shielded cables must be used on the console and
auxiliary ports of the GRP. An updated version of the GRP (Product Number GRP-B=, Rev. F0
and later) does not require shielded cables for Class B compliance.
GRP Functions
The primary functions of the GRP for Cisco 12000 Series Routers follow:
• Loading the Cisco IOS software on all the installed line cards at power up
• Providing a console (terminal) port for router configuration
SLOT-0
GIGABIT ROUTE PROCESSOR
SLOT-1
COLL
LINK
TX
RX
RJ-45
MII
RESET
AUX
CONSOLE
EJECT
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