Re: NAT CEF

For 5-6Mb traffic, you can safetly use NAT.

on 6500, NAT translation creation is software switched, the flow
afterwards is still on hardware.

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
>>
>>
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>
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Received on Wed May 19 2010 - 18:43:24 ART