Cisco Systems 7500 Series manual RSP4/4+-Cisco 7507, Cisco 7513, and Cisco, Type

Chapter 1 Cisco 7500 Series Product Overview

Route Switch Processor Overview

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

•Combining all of the switched routing and high-speed switching functions that communicate with and control the interface processors on the dual CyBus. This switching section decides the destination of a packet and switches it accordingly.

The RSP2 supports high system availability (HSA), which is a feature in Cisco IOS Release 11.1(4) or later, allowing two RSPs to be used in a Cisco 7507, Cisco 7507-MX, Cisco 7513, or Cisco 7513-MX router.

Note The Cisco 7576 uses only one RSP slot per router, designated router A and router B; therefore, it does not support HSA. The Cisco 7505 has only one RSP slot; therefore, it also does not support the HSA feature.

The RSP2 ships as Product Numbers RSP2 and RSP2=.

The RSP2 contains most of the memory components used by the system. Table 1-7lists the functions of each type of memory on the RSP2.

Table 1-7	RSP2 Memory Components
Type		Size		Quantity	Description	Location
DRAM		16 to 128 MB		2 to 4	8-, 16-, or 32-MB SIMMs (based on maximum	U21 and U33
					DRAM required)	U12 and U4
SRAM		1 MB (fixed)		–	SRAM for packet buffering functions (MEMD)	–
		512	KB (fixed)	–	SRAM for secondary CPU cache memory	–
					functions
NVRAM		128	KB	1	Nonvolatile SRAM for the system configuration	U18
					file1
Flash Memory:
SIMM		8 MB		1	Contains the Cisco IOS images on the RSP2.	U1
PC Cards		8, 16, and 20 MB2		Up to 2	Contains the Cisco IOS images on up to 2	Slot 0 and slot 1
					PC Cards
Boot ROM3		256	KB	1	EPROM for the ROM monitor program	U30

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

2.Only Intel Series 2 Flash memory cards can be used with the RSP2.

3.With the RSP2, the HSA feature requires boot ROM Version 11.1(2) or later.

Note For RSP2 DRAM upgrade procedures, see Chapter 9, “Replacing DRAM on the Route Switch Processor.”

RSP4/4+—Cisco 7507, Cisco 7513, and Cisco 7576

The RSP4/4+ shown in Figure 1-21, is the main system processor for the Cisco 7507, Cisco 7513, and Cisco 7576 routers. The RSP4/4+ provides switched routing and high-speed switching functions.

	Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0		1-33