BGP
Incentives for BGP Guided IP-Level Topology Discovery
Mon, 02/23/2009 - 12:59 by Benoit Donnet • Categories:
New sources of BGP data
Tue, 10/28/2008 - 00:22 by Olivier Bonaventure • Categories:
Researchers who are working on improving BGP are familar with popular sources of BGP updates and tables including :
Improving Route Diversity through the Design of iBGP Topologies
Tue, 08/19/2008 - 03:39 by Cristel Pelsser • Categories:
BGP Guided Probing
Fri, 07/04/2008 - 10:39 by Benoit Donnet • Categories:
Overview
The Internet topology discovery at the IP interface level is mostly based on traceroute. Traceroute servers are located around the world and, based on a large destinations list, probe the network. It has been demonstrated that probing the network in such a way causes redundancy.
In this work, we propose to reduce the amount of required probes by triggering a traceroute based on BGP information. Our BGP guided probing software, once connected to a BGP feed, is able to decide whether a traceroute towards a given prefix must be launched or not.
BGP misconfigurations strike back in Pakistan and affect Youtube
Tue, 02/26/2008 - 01:46 by Olivier Bonaventure • Categories:
All network engineers who are working with the interdomain routing protocol used on the Interned named BGP know that BGP is not 100% secure and that misconfigurations or attacks could cause problems on the Internet. The key problem is that BGP does not have mechanisms to verify the validity of a received route advertisement. From time to time, misconfigurations happen and are discussed on operators mailing lists such as nanog. Yesterday, youtube was affected by such a misconfiguration.