Cisco Systems 7500 Series manual SRAM3

Chapter 1 Cisco 7500 Series Product Overview

Route Switch Processor Overview

Table 1-9	RSP8 Memory Components
Type		Size	Quantity	Description	Location
DRAM		64-MB1to 256-MB	1 or 2	Any combination of 32-MB, 64-MB, or 128-MB	U12 or U12 and
		DIMMs		DIMMs (based on DRAM required) for main	U152
				Cisco IOS image functions
SRAM3		8 MB (fixed)	–	SRAM for packet buffering functions (MEMD)	–
		2 MB (fixed)	–	SRAM for tertiary (L3) CPU cache memory	–
				functions
NVRAM		2 MB	1	Nonvolatile SRAM for the system configuration	–
				file4
Flash memory		16-MB SIMM	1	Contains the Cisco IOS images on the RSP8	U1
		40-MB5Flash Disk	Up to 2	Contains the Cisco IOS images on up to 2 Flash	Slot 0 or slot 0
				Disks7	and slot 1
		16-MB or 20-MB6	Up to 2	Contains the Cisco IOS images on up to 2 Flash	Slot 0 or slot 0
		Flash memory card		memory cards7	and slot 1

1.64 MB of DRAM is the default DRAM configuration for the RSP8. The board is preconfigured with either two 32-MB DIMMs or one 64-MB DIMM.

2.Note that the larger DRAM DIMM must be placed in the U12 socket.

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

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

5.A 40-MB Flash Disk in slot 0 is the default shipping configuration for RSP8 products.

6.Optional Flash memory.

7.Type I, Type II, and Type III PC Cards can be used in PC Card slot 1, and Type I and Type II PC Cards can be used in slot 0.

Note For RSP8 DRAM upgrade procedures, see Chapter 9, “Replacing DRAM on the Route Switch Processor.”

RSP16—Cisco 7507, Cisco 7507-MX, Cisco 7513, and Cisco 7513-MX

The RSP16 is the latest-generation, main system processor module for the Cisco 7500 series routers.

The RSP16 supports the high system availability (HSA) feature, which allows two RSP16s (or an RSP16 and an RSP8) to be used in a Cisco 7507, Cisco 7507-MX, Cisco 7513, or Cisco 7513-MX router. The redundancy increases system availability during planned and unplanned network outages..

The RSP16 also supports high availability (HA), a series of features that operates similarly to HSA, but which further minimizes system downtime. (HSA is the system default.)

The RSP16 is not available as an upgrade to an existing RSP, but supports the VIP2, VIP4, and new VIP6-80. The RSP16 does not support legacy interface processors, except for the CIP2, GEIP, GEIP+, FEIP2-DSW-2TX, FEIP2-DSW-2FX, SRPIP, CX-CIP2-ECA1 and ECA2. The RSP16 contains the central processing unit (CPU) and most of the memory components for the router. The Cisco IOS software images reside in Flash memory, located as follows on the RSP16:

•In the form of a single in-line memory module (SIMM) (U1 in Figure 2)

•Up to two Flash Disks that insert in the two PC Card slots (slot 0 and slot 1)

	Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0		1-39