Hi everyone,
I've posted this question last week but never got a satisfactory response
so I will post it again; hopefully, I can get a better suggestion this
time.
I am running SSH on a Cisco 3640 router with IOS 12.1.7(T) version.
This router is used a an access server to control other Cisco devices.
Everything is working except it is painfully slow. At first, I thought
it might network latency, so I take the router back to the lab, connect
the access server FE interface with a cross-over cable to my laptop and
establish a SSH connection to the access server. The connection is still
VERY SLOW. If I take off SSH and use telnet, it is very fast. However,
disabling SSH is NOT an option for me because this router will be
accessable via the Internet and the customer does not want to use
TELNET (username and password in clear text). They don't want any other
option, just SSH. Oh, the router has 32MB Flash and 128MB RAM which I
think is plentiful. Its only purpose is to function as an access-server,
nothing else. I still can not, for the life of me, figure out why SSH
creates such a latency. I did both "show memory" and "show process".
In both cases, SSH doesn't take much memory and cpu resources. I give
the "show tech" to Cisco TAC and he has not found a solution for it. As
far as the SSH client is concern, I use either PUTTY or MINDTERM which
is extremely slick and fast clients. They both work great when I SSH
into Unix boxes.
Any suggestions or ideas for my dilema.
Thanks.
Sean
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