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upgrading 2621 flash

I need to know if I can update the flash to 32MB of router 2621, with my present rom memory:

Cisco Internetwork Operating System Software

IOS (tm) C2600 Software (C2600-JO3S56I-M), Version 12.1(7), RELEASE SOFTWARE (fc


Copyright (c) 1986-2001 by cisco Systems, Inc.

Compiled Thu 22-Feb-01 15:20 by kellythw

Image text-base: 0x80008088, data-base: 0x810FD358

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

ROUTER_CLIENTES_VLAN uptime is 5 weeks, 6 days, 16 hours, 53 minutes

System returned to ROM by reload

System image file is "flash:c2600-jo3s56i-mz.121-7.bin"

cisco 2621 (MPC860) processor (revision 0x102) with 59392K/6144K bytes of memory


Processor board ID JAD04400OLA (1701649984)

M860 processor: part number 0, mask 49

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

TN3270 Emulation software.

2 FastEthernet/IEEE 802.3 interface(s)

32K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

New Member

Re: upgrading 2621 flash

You can upgrade your flash, but make sure that the version of IOS you want to run will work with only 32M of DRAM.

Cisco Employee

Re: upgrading 2621 flash

Cisco 2620 and Cisco 2621 routers can be upgraded to support a maximum of 32MB of Flash memory when using both the Cisco 2600 BootROM version 12.1(3r)T2 (supplied with Cisco p/n MEM2620-32FSBoot=) and Cisco IOS Release 12.1.3T, 12.2, 12.2T, or later Cisco IOS versions.

For the full reference, use the following URL:

Hope this helps,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
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