[c-nsp] TFTP/SCP

[Harry Hambi - Atos]

It was using SCP that caused the switch CPU to spike. Sorry if I have miss read your comments. Are you saying there's a setting in the SCP server to limit bandwidth?, I 'me using solar winds SFTP & SCP server


Rgds
Harry

Harry Hambi BEng(Hons)  MIET  Rsgb


-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Alex Pressé
Sent: 19 November 2015 15:01
To: Daniel Brisson
Cc: cisco-nsp at puck.nether.net; Jared Mauch
Subject: Re: [c-nsp] TFTP/SCP

I've dumped images in a place available via HTTP.

The nice thing about SCP is being able to push the image directly to the
switches instead of having the switches pull. When pushing the image, SCP
also offers the ability to limit bandwidth (thus preventing your CPU spike).



On Thu, Nov 19, 2015 at 7:54 AM, Daniel Brisson <dbrisson at uvm.edu> wrote:

> What about protecting credentials?  Do you use a service account that has
> 0 access other than FTP'ing images?
>
> -dan
>
>
> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Jared Mauch
> Sent: Thursday, November 19, 2015 8:54 AM
> To: Mark Tinka <mark.tinka at seacom.mu>
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] TFTP/SCP
>
> We use FTP as the image isn't something that needs to be protected from
> eavesdroppers.
>
> Jared Mauch
>
> > On Nov 19, 2015, at 6:46 AM, Mark Tinka <mark.tinka at seacom.mu> wrote:
> >
> >
> >
> >> On 19/Nov/15 12:25, Harry Hambi - Atos wrote:
> >>
> >> Hi All,
> >> Uploading IOS 15.2.SE7 to a number of 3750 switches using tftp. This
> proved very slow, so I decided to use SCP which was a lot quicker. However,
> SCP caused a cpu spike on the switch which caused snmp drops. Has anyone
> ever experience this?, the switch was passing data traffic normally.
> >
> > Might make sense.
> >
> > SCP is exception traffic, as is SNMP traffic to the switch.
> >
> > Mark.
> >
> > _______________________________________________
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--
Alex Presse
"How much net work could a network work if a network could net work?"
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