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.
There are no specific requirements for this document.
This document is not restricted to specific software and hardware versions.
Refer to Cisco Technical Tips Conventions for more information on document conventions.
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|
|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 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|
|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|
|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)|
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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