Cisco Systems 7500 Series manual Location See, Type Size Quantity Description

Chapter 1 Cisco 7500 Series Product Overview

Route Switch Processor Overview

•Air-temperature sensors for environmental monitoring. (All of the logic for the environmental monitoring functions is contained on the router interface card.)

In addition to running the system software from DRAM, the RSP16 contains and executes the following management functions that control the system:

•Sending and receiving routing protocol updates

•Managing tables and caches

•Monitoring interface and environmental status

•Providing Simple Network Management Protocol (SNMP) management and the interface between the console and Telnet

The high-speed switching section of the RSP16 communicates with and controls the interface processors on the high-speed CyBus. This switching section of the RSP16 decides the destination of a packet and switches it based on that decision.

Note A bank of hardware MAC-layer addresses for the interface ports is contained in an NVRAM device on the router backplane.

Following are chassis slot requirements for ensuring RSP16 compatibility.

•You have no restrictions on installing an RSP16 in a Cisco 7505, however; the Cisco 7505 does not support the HSA or the HA features.

•You have no restrictions on installing an RSP16 in a Cisco 7507 or Cisco 7507-MX provided that you install the RSP16 in slot 2, slot 3, or both. With the HSA or HA features enabled, you will install an RSP16 (or an RSP8 and an RSP16) in both RSP slots.

•You have no restrictions on installing an RSP16 in a Cisco 7513 or Cisco 7513-MX provided that you install the RSP16 in slot 6, slot 7, or both. With the HSA or HA features enabled, you will install an RSP16 (or an RSP8 and an RSP16) in both RSP slots.

•It is assumed that if you install two RSP16s (or an RSP8 and an RSP16) in the Cisco 7507, Cisco 7507-MX, Cisco 7513, or Cisco 7513-MX, you plan to enable and configure the HSA or HA features

Table 1-10	RSP16 Memory Components
					Location (See
Type		Size	Quantity	Description	Figure 1-23
DRAM		128MB1 to 516MB	1 or 2	128-, 256-, or 516-MB DIMM2 (based on DRAM	U130, or U130
		DIMMs		required) for main Cisco IOS image functions	and U180
SRAM3		8 MB (fixed)	–	SRAM for packet buffering functions (MEMD)	–
		2MB (fixed)	–	SRAM for tertiary (L3) CPU cache memory	–
				functions
NVRAM		2MB	1	Nonvolatile SRAM for the system configuration	U5
				file4
Flash Memory		16MB SIMM5	1	Contains the Cisco IOS images on the RSP16	U1
		48MB, 64MB6, or	Up to 2	Contains the Cisco IOS images on up to two Flash	Slot 0, or slot 0
		128MB Flash Disk		Disks	and slot 1
Flash Boot ROM		512KB	1	Flash EPROM for the ROM monitor program	U7
				image

1. 128MB DRAM is the default DRAM configuration for the RSP16.

	Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0		1-41