Cisco Systems NPE-225 Software and Hardware Requirements, NPE or NSE Requirements, Nvram U41

Chapter 8 Preparation for Installation

Software and Hardware Requirements

If your router is mounted in a 4-post or telco-type rack, make sure you have at least one other person available to assist you with removing the chassis from the rack.

Software and Hardware Requirements

The network processing engine and network services engine have different requirements for both hardware and software. See the “NPE or NSE Requirements” section on page 8-2.

Note Cisco IOS Release 12.2 changed the behavior of the ROM monitor (ROMmon) during the bootup sequence. See “Boot Changes in Cisco IOS Release 12.2” section on page 10-2for more information.

NPE or NSE Requirements

When installing an NPE-175, NPE-225, NPE-300, NPE-400, NPE-G2, or NSE-1 in a Cisco 7200 VXR router or Cisco uBR7246VXR router that is using a previously purchased I/O controller, you must upgrade the I/O controller boot helper image. The Cisco uBR7225VXR router does not support port adapters or I/O controllers.

Note Instructions for upgrading the boot helper image on the I/O controller are contained in the online Memory Replacement Instructions for the Network Processing Engine or Network Services Engine and Input/Output Controller publication.

Figure 8-1 Input/Output Controller—Showing Boot ROM and Flash SIMM

2

1

			SLOT	1
				FE	MII
ENABLED						ENABLE FE	LINK	RESET	OK
PCMCIA	EJECT	SLOT	0						PWR
					FE		CPU	IO

3 4 5

	FAST ETHERNET INPUT/OUTPUT CONTROLLER
AUX	CONSOLE

6 7

10

66425

8

9

11

12

			1	Temperature sensor	7	Console port
2				Captive installation screw	8	Midplane connectors
3				PC Card slots	9	Flash SIMM (U99)
4				Optional Fast Ethernet port (MII receptacle)	10	NVRAM (U41)
5				LEDs and CPU reset button	11	Temperature sensor
6				Auxiliary port	12	Boot ROM (U20)
		Network Processing Engine and Network Services Engine Installation and Configuration
	8-2					OL-4448-12