Re: BGP Port Numbers

From: naveen M S (navin.ms@gmail.com)
Date: Thu Mar 12 2009 - 20:19:56 ARST


Nick,

Looking at the IANA port assignment, BGP can use both TCP and UDP port 179.
http://www.iana.org/assignments/port-numbers

Looks like it depends on implementation, though. I have never heard of BGP
running on UDP.

-Naveen.

On Thu, Mar 12, 2009 at 3:09 PM, Nick <ccieaz@googlemail.com> wrote:

> Hi,
>
> Looking at the DocCD here:
>
>
> http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/clsfy_traffic_nbar_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1056828
>
> It says BGP Port number "TCP/UDP 179".
>
> I always thought that BGP was purely TCP. Is it also UDP and i have missed
> something in my studies?
>
> Thanks
>
> Nick
>
>
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