[AusNOG] BGP query

[Nathan Brookfield]

TPG want to influence traffic to traverse via Transit links which are more expensive than via Peering exchanges (even there own).

It's a silly network strategy and only hurts there own customers but at the same time increases the amount of bandwidth required by PIPE Transit customers which equals more revenue :(

PS I love path stuffing but the term technically is path prepending.

Kindest Regards,
Nathan Brookfield

Chief Executive Officer
Simtronic Technologies Pty Ltd

Web: http://simtronic.com.au
Phone: 1300 592 330
Fax: (02) 4749 4950

On 10 Jun 2014, at 10:31, "Alex Samad - Yieldbroker" <Alex.Samad at yieldbroker.com<mailto:Alex.Samad at yieldbroker.com>> wrote:

Hi

I noticed something strange on the weekend with my BGP setup. Thought I would ask the group if it looks strange to.

So at work we peer with Internode and Pipe.  My home connection is with TPG.
I noticed on the weekend my traffic was routing asymmetrically

My home -> TPG -> Work
Work -> Internode -> My home

Found this rather strange as I thought PIPE -> TPG would be the preferred path.  So I dug into my BGP peers and looked at the tables


What I found was rather strange from internode I had this AS path 4739,18398,7545, from Pipe I have this AS path 24130,7545,7545,7545, so for some reason TPG is AS stuffing (? Right term ? ) their prefix to Pipe.

That's rather strange I think.  I don't want to have to mess too much with my BGP filters to do to any trick things, I believe I would re weight it such that TPG via pipe is the preference, but I wonder why TPG would do this.

I did contact the NOC @ Pipe.. As far as they are concerned every things okay.  Let me paraphrase... 1 company 2 businesses


I am not sure why TPG would want to do that ?

A

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