Chapter 5 NPE-G1 Overview

NPE-G1 Memory Information

Primary and secondary cache—Hierarchical cache memory storage based on the proximity of the cache to the core of the processor. Primary cache is closest to the processor core and has the fastest access. Secondary cache has slower access than primary cache.

RAM—random-access memory

RISC—reduced instruction set computing

ROM—read-only memory

SDRAM—synchronous dynamic random-access memory

SDRAM-fixed—SDRAM of a fixed size or quantity; can be replaced, but not upgraded

SODIMM—small outline dual in-line memory module

Unified cache—Instruction cache and data cache are combined. For example, a processor may have primary cache with separate instruction and data cache memory, but unified secondary cache.

NPE-G1 Memory Information

To determine the memory configuration of your NPE-G1, use the show version command.

The following example shows an NPE-G1 installed in a Cisco 7206VXR router. The display for a Cisco uBR7246VXR router is similar.

Router# show version

Cisco Internetwork Operating System Software

IOS (tm) 7200 Software (C7200-P-M), Experimental Version 12.2(20011112:161132)

Copyright (c) 1986-2001 by cisco Systems, Inc. Compiled Tue 13-Nov-01 03:58 by

Image text-base:0x600089B8, data-base:0x6130A000

(display text omitted)

cisco 7206VXR (NPE-G1) processor (revision 0x00) with 245760K/16384K bytes of memory.

Processor board ID 15191620

BCM12500 CPU at 700Mhz, Implementation 1, Rev 0.1, 512KB L2 Cache 6 slot VXR midplane, Version 2.0

(display text omitted)

Table 5-1provides memory specifications and Table 5-2provides user replaceable memory configuration information for the NPE-G1. Table 5-3provides CompactFlash Disk specifications.

Table 5-1

NPE-G1 Memory Specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Component

 

 

 

 

 

 

Location on the

 

Memory Type

 

Size

Quantity

Description

NPE-G1 Board

 

 

 

 

 

 

 

 

SDRAM

 

128 MB, 256 MB, 512 MB

2

128-MB, 256-MB, or 512-MB SODIMMs1

J3 and J4

 

Boot ROM

 

512 KB

1

Reprogrammable Boot ROM for the ROM

U1

 

 

 

 

 

monitor program

 

 

 

 

 

 

 

 

 

 

 

 

Flash memory

 

16 MB

1

Contains the default boot helper (boot

U25 and U26

 

 

 

 

 

loader) image

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Network Processing Engine and Network Services Engine Installation and Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-4448-12

 

 

 

 

 

 

5-9

 

 

 

 

 

 

 

 

 

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Cisco Systems NPE-175, NPE-225 manual NPE-G1 Memory Information, Memory Type Size Quantity Description NPE-G1 Board