Re: [rrg] Geoff Huston's BGP/DFZ research - 300k DFZ prefixes are the tip of the iceberg

2010-03-16 Thread Lixia Zhang
top posting: it's my fault for not stating clearly -- Since Amund's msg said that - Surprisingly, as much as 40% of churn consists of duplicate announcements, which are unnecessary for correct protocol operation. I was merely offering one explanation for the cause of the observed

Re: [rrg] Geoff Huston's BGP/DFZ research - 300k DFZ prefixes are the tip of

2010-03-16 Thread Lixia Zhang
On Mar 15, 2010, at 4:30 AM, heinerhum...@aol.com wrote: In einer eMail vom 15.03.2010 08:00:10 Westeuropäische Normalzeit schreibt li...@cs.ucla.edu: Heiner, 1/ I am not quite clear why collecting topological links is the #1 question for RRG/routing scalability solution development 2/

[rrg] an example of convergence

2010-03-16 Thread Pekka Savola
On Mon, 15 Mar 2010, Tony Li wrote: employer hat off Any operator who would like to stand up and embarrass their favorite router vendor by showing a graph of router boot convergence times is welcome to do so. ;-) /employer hat off Ok, I'll jump on my soap box. In worst case, Juniper high-end

Re: [rrg] Geoff Huston's BGP/DFZ research - 300k DFZ prefixes are the tip of

2010-03-16 Thread HeinerHummel
In einer eMail vom 16.03.2010 08:34:27 Westeuropäische Normalzeit schreibt li...@cs.ucla.edu: On Mar 15, 2010, at 4:30 AM, _heinerhum...@aol.com_ (mailto:heinerhum...@aol.com) wrote: In einer eMail vom 15.03.2010 08:00:10 Westeuropäische Normalzeit schreibt _li...@cs.ucla.edu_

Re: [rrg] Geoff Huston's BGP/DFZ research - 300k DFZ prefixes are the tip of the iceberg

2010-03-16 Thread Constantine Dovrolis
Toni, you are raising an interesting issue. However, if the sending routers do not check whether an update is duplicate, and if the receiving routers do not check whether an update is duplicate, don't we create a positive feedback loop? I mean, if a router X sends a duplicate update to N other