Re: [c-nsp] BGP path preference

2007-08-31 Thread Niels Bakker
* [EMAIL PROTECTED] (Jon Lewis) [Thu 30 Aug 2007, 17:13 CEST]: On Wed, 29 Aug 2007, Andy Dills wrote: Don't forget that you can prepend incoming announcements as well as outgoing announcements. This is what I'd do (and have done before) to even things out. Some would argue that when

Re: [c-nsp] BGP path preference

2007-08-31 Thread Oliver Boehmer \(oboehmer\)
Niels Bakker wrote on Friday, August 31, 2007 3:22 PM: * [EMAIL PROTECTED] (Jon Lewis) [Thu 30 Aug 2007, 17:13 CEST]: On Wed, 29 Aug 2007, Andy Dills wrote: Don't forget that you can prepend incoming announcements as well as outgoing announcements. This is what I'd do (and have done

Re: [c-nsp] BGP path preference

2007-08-31 Thread Jon Lewis
On Fri, 31 Aug 2007, Oliver Boehmer (oboehmer) wrote: On Wed, 29 Aug 2007, Andy Dills wrote: Don't forget that you can prepend incoming announcements as well as outgoing announcements. This is what I'd do (and have done before) to even things out. Some would argue that when prepending

Re: [c-nsp] BGP path preference

2007-08-30 Thread Jon Lewis
On Wed, 29 Aug 2007, Andy Dills wrote: Don't forget that you can prepend incoming announcements as well as outgoing announcements. For instance, to account for the fact that there is essentially an extra AS in your transit path to 3356, you might just prepend a single 22773 to everything

Re: [c-nsp] BGP path preference

2007-08-30 Thread Stephen Wilcox
On Thu, Aug 30, 2007 at 11:07:36AM -0400, Jon Lewis wrote: On Wed, 29 Aug 2007, Andy Dills wrote: Don't forget that you can prepend incoming announcements as well as outgoing announcements. For instance, to account for the fact that there is essentially an extra AS in your transit

Re: [c-nsp] BGP path preference

2007-08-29 Thread Andy Dills
On Tue, 28 Aug 2007, Justin Shore wrote: Does anyone have any suggestions on how to work around this? L3 will eventually fix it when they eliminate 19094 but who knows when that will be. I thought about trying to use a regex to match 19094 3356 to raise local pref even higher. I also

Re: [c-nsp] BGP path preference

2007-08-29 Thread Bob Tinkelman
I'd suggest using route-maps to *lower* the local-pref on routes that contain ASNs from two or your upstreams. - Bob I have a situation with one of our upstreams that I'm trying to fix. We peer with Level3 (3356), specifically we peer with 19094 which is the old Telcove (Adelphia)

[c-nsp] BGP path preference

2007-08-28 Thread Justin Shore
I have a situation with one of our upstreams that I'm trying to fix. We peer with Level3 (3356), specifically we peer with 19094 which is the old Telcove (Adelphia) infrastructure that L3 bought and is slowing migrating to 3356. I'm having trouble pushing traffic to that circuit. The

Re: [c-nsp] BGP path preference

2007-08-28 Thread Gunjan GANDHI (BR/EPA)
' Subject: [c-nsp] BGP path preference I have a situation with one of our upstreams that I'm trying to fix. We peer with Level3 (3356), specifically we peer with 19094 which is the old Telcove (Adelphia) infrastructure that L3 bought and is slowing migrating to 3356. I'm having trouble pushing traffic

Re: [c-nsp] BGP path preference

2007-08-28 Thread Gert Doering
Hi, On Tue, Aug 28, 2007 at 11:24:22PM -0500, Justin Shore wrote: a typical prefix advertised over L3 arrives at my border with 19094 3356 and other ASNs whereas Cox may still have the same number of backend ASNs but only 22773 once it enters the Cox AS. Does anyone have any suggestions