Cisco Systems 7500 Series manual Common RSP Hardware Features, RSP LEDs, Dram Description

Chapter 1 Cisco 7500 Series Product Overview

Route Switch Processor Overview

2.Do not mix memory sizes. If installing 2 DIMMs, both DIMMs must be the same size. If your router includes redundant RSPs, the RSPs should have the same memory size.

3.SRAM is not user-configurable or field-upgradable.

4.A system configuration file is contained in NVRAM, which allows the Cisco IOS software to control several system variables.

5.This 16-MB SIMM Flash memory is not supported on the RSP2, RSP4/4+, or RSP8.

6.A 64-MB Flash Disk is the default shipping configuration for the RSP16 product.

Common RSP Hardware Features

This section discusses hardware features common to all RSPs. (For convenience, the RSP2, RSP4/4+, RSP8, and RSP16 are referred to as the RSP with differences clearly noted.)

RSP LEDs

Several LEDs on the RSP indicate system and RSP status, as follows:

•Normal LED—On when the RSP is receiving +5V, this LED indicates a successful boot; however, it does not indicate the system has reached “normal” operation.

•CPU halt LED—Off during normal operation, this LED goes on only if the system detects a processor hardware failure.

The RSP controls the normal and CPU halt LEDs and turns them on in parallel to indicate that the system is operational.

•Master/slave LEDs—These LEDs indicate whether an RSP2, RSP4/4+, or RSP8 is the master or slave in a system configured for the high system availability (HSA) feature.

•Slot 0 and slot 1 PC Card LEDs—These LEDs go on when a PC Card-based Flash memory card is being accessed in the respective PC Card slot.

Note The master/slave LED and the HSA feature are not supported on the Cisco 7505 or Cisco 7576.

RSP DRAM

	Dynamic random-access memory (DRAM) stores routing tables, protocols, and network accounting
	applications. Table 1-11lists the RSP DRAM configurations.
Table 1-11	RSP DRAM Configurations
RSP	DRAM Description
RSP2	Up to 128 MB available through SIMM upgrades. DRAM is contained in up to 4 SIMM sockets: U21 and
	U33 (also called bank 0) and U4 and U12 (also called bank 1)
RSP4/4+	Up to 256 MB available through DIMM upgrades. DRAM is contained in up to 2 DIMM sockets: U10 (also
	called bank 0) and U13 (also called bank 1)
RSP8	Up to 256 MB available through DIMM upgrades. DRAM is contained in up to 2 DIMM sockets: U12 (also
	called bank 0) and U15 (also called bank 1)

	Cisco 7500 Series Installation and Configuration Guide
1-42	OL-5008-03 B0