Chapter 4 NSE-1 Overview
NSE-1 Memory Information
•Primary, secondary, tertiary 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, but faster access than tertiary cache.
•RAM—random-access memory
•RISC—reduced instruction set computing
•ROM—read-only memory
•SIMM—single in-line memory module
•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
•SRAM—static random-access memory
•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.
NSE-1 Memory Information
To determine the memory configuration of your NSE-1, use the show version command.
The following example shows an NSE-1 installed in a Cisco 7206VXR router:
Router# show version
Cisco Internetwork Operating System Software
IOS (tm) 7200 Software (C7200-P-M), Released Version 12.0
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Wed 22-Dec-99 08:37 by
Image text-base:0x60008900, data-base:0x60B58000
(display text omitted)
cisco 7206VXR NSE-1 processor with 57344K/8192K bytes of memory. R7000 CPU at 262Mhz, Implementation 39, Rev 1.0, 256KB L2 Cache 6 slot VXR midplane, Version 2.0
(display text omitted)
Table 4-1provides memory specifications and Table 4-2provides user replaceable memory configuration information for the NSE-1.
Table 4-1 | NSE-1 Memory Specifications | | |
| | | | | | |
| | | | | | Component Location |
Memory Type | | Size | Quantity | Description | on the NSE-1 Board |
| | | | | |
SDRAM | | 128 MB or 256 MB | 1 | 128-MB or 256-MB DIMMs | U15 |
| | | | | |
Boot ROM | | 512 KB | 1 | OTP1 ROM for the ROM monitor program | U1 |
Primary cache | | 16 | KB (instruction), | — | RM7000 processor, internal cache | U22 |
| | 16 | KB (data) | | | |
| | | | | | |
Network Processing Engine and Network Services Engine Installation and Configuration
