From: slo (nebulite@gmail.com)
Date: Thu Mar 12 2009 - 21:49:30 ARST
BGP4/BGP4+ only use TCP 179 port, you can refer rfc1771.
BGP base on TCP.
Best Regards!
------------------------------------------------------------
Shen Lei CCIE#13947
Software Business Department
Jiangsu Fujitsu Telecommunications Technology Co.,Ltd. (JFTT) No.118,
Dengwei Rd.,Suzhou, P.R. China
Postcode: 215011
Mail :shenlei@cn.fujitsu.com
------------------------------------------------------------
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Travis Niedens
Sent: Friday, March 13, 2009 7:49 AM
To: ccieaz@googlemail.com; ccielab@groupstudy.com; cisco@groupstudy.com
Subject: RE: BGP Port Numbers
I think that 179 UDP is reserved by default for BGP as it already uses the
TCP
179 port. I've looked through RFCs for BGP and didn't see anything - even
BGMP uses TCP.
http://www.rfc-archive.org/getrfc.php?rfc=4271&tag=A-Border-Gateway-Protocol
-
4-%28BGP-4%29
I did not touch every single RFC, but the ones that matter state that it is
TCP. Maybe some of the 3x - 5x CCIEs on here know more.
Travis
> Date: Thu, 12 Mar 2009 22:09:50 +0000
> Subject: BGP Port Numbers
> From: ccieaz@googlemail.com
> To: ccielab@groupstudy.com; cisco@groupstudy.com
>
> Hi,
>
> Looking at the DocCD here:
>
>
http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/clsfy_traffic_nb
a
r_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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