RE: NAT CEF

Ok thanks. I can use NAT for the migration its only for a couple of weeks
and generates a max of 5 or 6 Mbit of traffic. As more connections are
migrated the less traffic is going to use the NAT rules.

Intresting I will do some research in those newer IOS versions. Probably
worth a test in the research centre.

Thanks all!

Kind regards,

Maarten Vervoorn
http://ccie.forumtion.com

2010/5/19 swap m <ccie19804_at_gmail.com>

yeah sure, and i must add tht its mandate to have a new IOS supporting
> the hardware switching for nat. newer trains in 12.2SX series support
> hardware nat switching.
>
> On Wed, May 19, 2010 at 8:15 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar>
> wrote:
> >
> >
> > swap m @ 19/5/2010 11:43 -0300 dixit:
> >>
> >> For 5-6Mb traffic, you can safetly use NAT.
> >>
> >> on 6500, NAT translation creation is software switched, the flow
> >> afterwards is still on hardware.
> >
> > Are you sure about this ?
> > -Carlos
> >
> >>
> >> IP nat outside doesnt affect other traffic that doesn't match NAT
> >> rule. Other traffic is hardware switched as if NAT is not configured.
> >> And in case you feel the traffic rate will be high in future, you can
> >> always put a NAT ratelimit, that'll ensure the box doesnt die.
> >>
> >> Swap
> >> #19804
> >>
> >> On Wed, May 19, 2010 at 6:14 PM, Maarten Vervoorn <
> mr.vervoorn_at_gmail.com>
> >> wrote:
> >>>
> >>> Only a small part of that traffic is needed to be translated. 5-6Mbit.
> So
> >>> is
> >>> it the case that when you configure ip nat outside on a interface all
> >>> traffic will be softare switched from that interface?
> >>>
> >>> 2010/5/19 Tyson Scott <tscott_at_ipexpert.com>
> >>>
> >>> Maarten,
> >>>>
> >>>> I would recommend taking this up with your account rep. That is a lot
> >>>> of
> >>>> traffic to be software switched.
> >>>>
> >>>> Regards,
> >>>>
> >>>> Tyson Scott - CCIE #13513 R&S, Security, and SP
> >>>> Technical Instructor - IPexpert, Inc.
> >>>> Mailto: tscott_at_ipexpert.com
> >>>>
> >>>>
> >>>>
> >>>> -----Original Message-----
> >>>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf
> Of
> >>>> Maarten Vervoorn
> >>>> Sent: Wednesday, May 19, 2010 9:41 AM
> >>>> To: Cisco certification
> >>>> Subject: NAT CEF
> >>>>
> >>>> Hi group.
> >>>>
> >>>> For the mirgation of a very important business application we want to
> >>>> use
> >>>> NAT to migrate every connection of that application to the new IP
> >>>> address.
> >>>> The networks are configured on a 6500 sup720 switch. I read the Cisco
> >>>> documentations and noticed that NAT translation had to be done in
> >>>> software.
> >>>> The outside NAT interface or on a 20Gbit connections (these are
> avarage
> >>>> loaded with 1-5Gbit. Will the configuration of NAT degrade my
> >>>> performance?
> >>>>
> >>>> Kind regards,
> >>>>
> >>>> Maarten Vervoorn
> >>>>
> >>>>
> >>>> Blogs and organic groups at http://www.ccie.net
> >>>>
> >>>>
> _______________________________________________________________________
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> >>
> >>
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> >>
> >> _______________________________________________________________________
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> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> > --
> > Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina

Blogs and organic groups at http://www.ccie.net
Received on Wed May 19 2010 - 19:27:42 ART