Slow performance of Cisco 3600 Router

Unanswered Question
Oct 26th, 2009

Hello all

I'll appreciate if some one please help me to inform why my Cisco Router 3600 running very slow. Here its show version output:


Router#show version

Cisco Internetwork Operating System Software

IOS (tm) 3600 Software (C3620-IK9S-M), Version 12.2(37), RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2006 by cisco Systems, Inc.

Compiled Thu 15-Jun-06 19:17 by pwade

Image text-base: 0x60008930, data-base: 0x61292000

ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (f


A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to

[email protected].

cisco 3620 (R4700) processor (revision 0x81) with 61440K/4096K bytes of memory.

Processor board ID 26386993

R4700 CPU at 80Mhz, Implementation 33, Rev 1.0

Bridging software.

X.25 software, Version 3.0.0.

SuperLAT software (copyright 1990 by Meridian Technology Corp).

DRAM configuration is 32 bits wide with parity disabled.

29K bytes of non-volatile configuration memory.

24576K bytes of processor board System flash (Read/Write)

Configuration register is 0x2142


Many regards


I have this problem too.
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Joseph W. Doherty Mon, 10/26/2009 - 07:34

It would help if you would explain why you consider your 3620 runniny very slow and what/how are you using it.

bravealikhan Mon, 10/26/2009 - 09:37

every thing is coming very slow, if im typing any command its appear on the computer screen very slow / taking more time to display what ever i typed, i just baught this router for my home lab.

Joseph W. Doherty Mon, 10/26/2009 - 09:55

Ok, if you're using the router's CLI, is it via console or network VTY? If the former, what bps setting are you using? If the latter, what's the network topology between your PC and the router?

bravealikhan Mon, 10/26/2009 - 20:20

i'm taking Router's CLI via console via a USB to RS232 converter to USB at my pc, when i directly plugged in the console cable to DB-9 it works fine, i think there should be some slow conversion on USB Converter to PC!. im using PL2303 Prolific Driver on my pc for USB to RS232 Converter.


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