Sean - try a show proc cpu and see what's going on... it will give you an
indication of what's going on inside the router. If it isn't a cpu problem,
then you'll have to look at the interface(s) and see if the performance hit
is happening there. (in other words, you'll have to isolate the problem -
it MIGHT be the router, but it also might NOT)
pay special attention to any of the processes that deal with ssh - the exec
may also play some part in this performance degradation
Keep looking to turn off telnet... and I'll ask my network operations
engineers how they did it (probably an inbound access list denying port 23
traffic and allowing SSH traffic applied to the vty's... that would be my
guess without looking any research...)
----- Original Message -----
From: John Neiberger <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, March 27, 2001 7:20 AM
Subject: Re: Cisco router is running very slow when SSh is implmented
> I don't know about the performance issue, that sounds like a "feature"
> since a 3640 shouldn't have much trouble handling that.
>
> As far as disabling telnet, the only way I know of is not to set a vty
> password. While not disabling the telnet server, it will prevent any
> attempts to telnet to the router.
>
> John
>
> >>> "Sean Young" <[EMAIL PROTECTED]> 3/27/01 7:58:37 AM >>>
> Hi everyone,
>
> Is it just me or anyone in the group experiencing the same thing?
> I've implemented SSH features on one of our ACCESS servers and I
> notice
> that it is very slow. The access server is a Cisco 3640 with 128MB
> RAM.
> I notice the performance is quited slow even on a Fast Ethernet LAN.
> I don't have any performance issues with Unix servers. Another thing,
> now that I have SSH running on the access server, how can I turn off
> telnet completely on the router? I check Cisco website but didn't see
> any solutions for it.
>
> Any ideas? Thanks.
>
> Sean
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