I've tried all the 12.1.(x)T images without success.
Any more ideas?
>From: "John Neiberger" <[EMAIL PROTECTED]>
>Reply-To: "John Neiberger" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: Implement Secure Shell (SSH) on Cisco 3640 router
>Date: Fri, 06 Apr 2001 08:49:30 -0600
>
>Have you tried other IOS images? How did you even get 12.1(7)T? As far
>as I can tell, 12.1(7) just came out and the latest T release available
>on a 3600 is 12.1(5)T. Is downgrading back to 12.1(5)T an option? Do
>you really even need the T release, or would 12.1(5) work for you?
>
>It's possible that if you really are using a bleeding-edge IOS release
>that you are running into a bug that they haven't resolved--or really
>even started working on yet. If changing to another image is an option,
>I'd try that to see if the behavior changes.
>
> >>> "Howard C. Berkowitz" <[EMAIL PROTECTED]> 4/6/01 8:26:15 AM >>>
> >Someone here must have an answer for this one. Cisco TAC has been
> >absolutely NO HELP. I am sure that 600+ heads in this group,
>together,
> >can help me with this problem. I have to implement this thing
>tomorrow
> >evening. I am sure that I will get lot of calls from unhappy
>customers
> >about the latency issue.
>
>To what extent have you escalated this in the TAC? What is the
>criticality designation of the problem report? To how many levels of
>TAC management have you spoken?
>
>I don't think it will qualify for the highest level, because work can
>still get done, just slowly. But it should be possible to escalate --
>if for no other reason that it's been an open ticket for a while.
>
>Have you discussed it with your local Cisco office?
>
>
> >PLEASE HELP.
> >
> >>From: "Sean Young" <[EMAIL PROTECTED]>
> >>Reply-To: "Sean Young" <[EMAIL PROTECTED]>
> >>To: [EMAIL PROTECTED]
> >>Subject: Implement Secure Shell (SSH) on Cisco 3640 router
> >>Date: Wed, 04 Apr 2001 21:41:29 -0400
> >>
> >>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.
>
>Do sh ip interfaces on all affected interfaces under both
>configuration options (SSH and non SSH). It would be wise to reboot
>after the configuration change.
>
>Are the interface switching modes different?
>
>If SSH puts an interface in a slow switching mode, that could explain
>the added latency. It doesn't necessarily fix it, but you then have
>a place to look. If the switching mode does change, specifically ask
>the TAC if there is an IOS level in which SSH will run in fast or CEF.
>
> >> 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.
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