Memory/Flash Size Supported in Catalyst Switch Platforms

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Updated:July 10, 2015
Document ID:24050

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Introduction

This document provides a matrix of minimum and maximum memory available on the Catalyst switch platforms. Only switches that support variable memory options are referenced in this document. Fixed memory switches are not discussed.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Memory/Flash Size Matrix

These memory devices are included in the matrix:

  • DRAM/SDRAM—Memory used to perform the CatOS or IOS system images.

  • NVRAM—Memory used to store start-up configuration file (nvram:).

  • OnBoard Flash—Memory used to hold system images for booting (bootdisk: or bootflash: or flash:).

  • Removable Flash—Memory which can be removed from the system which typically holds system images (slot0: or disk0: or disk1:).

Catalyst Switch DRAM NVRAM OnBoard Flash Removable Flash
         
Catalyst 8540        
  256MB 512KB 8/16MB 16/20/28/48MB
Catalyst 8510        
  64MB 128KB 8/16MB 16/20MB
Catalyst 6000/6500        
Supervisor 1 1 64MB 512KB 16MB 16/24/64MB
Supervisor 1A 1 64/128MB 512KB 16MB 16/24/64MB
Supervisor 2 2 128/256/512 MB 512KB 32MB 16/24/64MB
Supervisor 2T 2GB default, upgradeable to 4GB 4MB 1GB default Compact Flash type II up to 8GB
Supervisor 2U 2 256/512MB 512KB 32MB 16/24/64MB
Supervisor 720 4 512MB default, upgradeable to 1GB 2MB 64MB Compact Flash type II 64/128/256MB, hardware supports 512MB and 1GB
Supervisor 720-3B 4 512MB default, upgradeable to 1GB 2MB 64MB Compact Flash type II 64/128/256MB, hardware supports 512MB and 1GB
Supervisor 720-3BXL 4 1GB default 2MB 64MB Compact Flash type II 64/128/256MB, hardware supports 512MB and 1GB
Supervisor 32 256MB / 512MB, upgradeable to 1GB 2MB 256MB Compact Flash type II 64/128/256MB, hardware supports 512MB and 1GB
Supervisor 32 PISA 512MB / 1GB 2 MB 512MB, upgradeable to 1GB Compact Flash type II 64/128/256/512MB and 1GB
MSFC1 64/128MB 512KB 16MB  
MSFC2 128/512MB 512KB 32MB  
MSFC2A 1GB 256MB  
MSFC3 512/1GB 2MB 64MB  
Catalyst 5000/5500        
Supervisor I 4/20MB DRAM 128KB 4/8MB none
Supervisor II 16/32MB DRAM 256 KB 8/16MB none
Supervisor IIG (WS-X5540) 32MB DRAM 512 KB 8MB none
Supervisor III 32/64MB DRAM 512 KB 8MB 8/16/20MB
Supervisor IIIG (WS-X5550 ) 32MB DRAM 512 KB 8MB none
Catalyst 4000/4500        
Supervisor I 32/64MB SDRAM 512KB 12MB none
Supervisor II 64/128MB SDRAM 512KB/1MB 12MB none
Supervisor II Plus 5 256MB SDRAM No. Uses bootflash 32MB Compact Flash (64/128MB)
Supervisor II Plus 10-GE 5 256MB SDRAM, upgradeable to 512MB No. Uses bootflash 64MB Compact Flash (64/128MB)
Supervisor III 256MB SDRAM 512KB 64MB Compact Flash (64/128MB)
Supervisor IV 512MB SDRAM 512KB 64MB Compact Flash (64/128MB)
Supervisor V 512MB SDRAM 512KB 64MB Compact Flash (64/128MB)
Supervisor V-10GE 5 512MB SDRAM No. Uses bootflash 64MB Compact Flash (64/128MB)
Supervisor 6-E 5 512MB SDRAM, upgradeable to 1GB No. Uses bootflash 128MB Compact Flash (64/128MB)
Supervisor 7E/7LE 2GB, upgradeable to 4GB 1GB 1GB 2GB SD Card (SD-X45-2GB-E)
Supervisor 8E 4GB 2GB 2GB 2GB SD Card (SD-X45-2GB-E)

1Catalyst 6500/6000 Supervisor Engine 1—The DRAM on a Supervisor 1 for the Catalyst 6500/6000 cannot be upgraded. The DRAM on a Supervisor 1A for the Catalyst 6500/6000 is upgradeable from 64 to 128 MB. Supervisor 1As shipped after June 2004 have 128 MB of DRAM by default.

The upgrade of the DRAM on a Supervisor 1A with an MSFC1 (part number WS-X6K-SUP1A-MSFC) requires an upgrade to an MSFC2 beforehand. An upgrade kit which includes the MSFC2 (part number MEM-S1-128MB-UPG=) is available. Refer to Catalyst 6500 Series Supervisor Engine 1A DRAM Upgrade Installation Note.

2Catalyst 6500/6000 Supervisor Engines 1 and 2—Flash Cards for the Catalyst 6500/6000 Supervisor Engine 1, 1A and 2 have minimum ROMMON, software version, and other requirements. Refer to Catalyst 6000 Family Flash Card Install Note.

3Catalyst 6500/6000 Supervisor Engine 2—The Supervisor Engine models WS-X6K-S2-PFC2, WS-X6K-S2-MSFC2 , and WS-X6K-S2U-MSFC2 support the Compact flash of 64 MB.

4Catalyst 6500/6000 Supervisor Engine 720—Only the Supervisor Engine 720 has two removable flash card slots. The slot labeled disk0: supports a Compact Flash Type II card only. The slot labeled disk1: supports either a Compact Flash Type II card or a 1-GB MicroDrive. You can connect different types of Compact Flash cards on these slots. For example, you can connect MEM-C6K-CPTFL128M on disk0: and MEM-C6K-CPTFL512M on disk1:.

5Catalyst 4500/4000 Supervisor Engines II Plus, II Plus 10-GE, V-10GE, 6-E—These supervisors use Onboard Flash to store configuration files and does not use a separate NVRAM device.

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