[AusNOG] BGP query
Nathan Brookfield
Nathan.Brookfield at simtronic.com.au
Tue Jun 10 10:41:21 EST 2014
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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