Cisco Catalyst 4000 Series Switches

Document ID: 24050

Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Memory/Flash Size Matrix
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Related Information

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:).

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, 128, 256, 512 MB, and 1 GB.

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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Related Information

• Catalyst 6500 Series Switch Supervisor Engine Guide
• Release Notes for Catalyst 6000 Family Supervisor Engine 2 ROMMON Software
• Tools and Resources - Cisco Systems
• Technical Support & Documentation - Cisco Systems