Re: NAT CEF

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
>>>>
>>>> _______________________________________________________________________
>>>> Subscription information may be found at:
>>>> http://www.groupstudy.com/list/CCIELab.html
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
>>> _______________________________________________________________________
>>> Subscription information may be found at:
>>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>>
>>
>>
>>
>>
>
> --
> 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 - 20:59:53 ART