Re: BGP Command: neighbor next-hop-unchanged

Here is another doc that is pretty good at explanation of this topic : )

http://www.cisco.com/en/US/docs/ios/12_2s/feature/guide/fs_bgpnh.html

On Mon, Aug 3, 2009 at 1:35 AM, Joe Astorino <jastorino_at_ipexpert.com> wrote:

> Hi Nguyen,
>
> Essentially, you put this command on the "remote" end of your EBGP peering
> session. When this command is applied, the router will not change the BGP
> next-hop. It allows it to "pass through". Imagine you have 3 router setup
> doing eBGP like this:
>
> RTR A ------ RTR B ------ RTR C
>
> RTR A and RTR B are in AS 65001. RTR C is in AS 65002. If you applied
> this command on RTR B with the peering to RTR A , when RTR B sends routes to
> RTR C the next-hop would still be RTR A ...or "unchanged."
>
> HTH
>
>
> On Mon, Aug 3, 2009 at 12:37 AM, But Nicky <lyredhair_at_gmail.com> wrote:
>
>> Dear Group,
>>
>> Any detail explanations and examples for this command?
>> I have jut read in "Command Reference", but I am confusing about this
>> command.
>> Many thanks.
>>
>> Kind regards,
>> But Nguyen.
>>
>>
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>
>
> --
> Regards,
>
> Joe Astorino - CCIE #24347 R&S
> Technical Instructor - IPexpert, Inc.
> Cell: +1.586.212.6107
> Fax: +1.810.454.0130
> Mailto: jastorino_at_ipexpert.com
>

-- 
Regards,
Joe Astorino - CCIE #24347 R&S
Technical Instructor - IPexpert, Inc.
Cell: +1.586.212.6107
Fax: +1.810.454.0130
Mailto:  jastorino_at_ipexpert.com
Blogs and organic groups at http://www.ccie.net