Le 29/01/2014 20:34, Owen DeLong a écrit :
>> This sort of local-pref default seems to be a common practice with
>> backbones. It's very annoying. I wish they'd stop.
> Most of their customers would actually be very unhappy if they stopped. This
> local-pref default prevents many many problems and
> This sort of local-pref default seems to be a common practice with
> backbones. It's very annoying. I wish they'd stop.
Most of their customers would actually be very unhappy if they stopped. This
local-pref default prevents many many problems and in the vast majority of
cases provides the des
On Wed, Jan 29, 2014 at 6:32 AM, Joseph Jenkins
wrote:
> I am seeking some feedback/help with my BGP configuration.
> I am peering with two providers level3 and tw. Unfortunately all of
> my address spaces are preferring the route over tw rather than level3.
Hi Joe,
I had a situation like this
According to telnet://route-server.twtelecom.net and
http://lookingglass.level3.net/bgp/lg_bgp_main.php BGP is working as
designed. Your single prepend on one prefix with TWTC causes a slight
preference for LVL3. Add another prepend if you want to further balance
your ingress load away from TWTC.
It is likely that level3 is aggregating your route, but tw can't. Longest match
wins.
--
Jakob Heitz.
> Date: Wed, 29 Jan 2014 03:32:17 -0800
> From: Joseph Jenkins
>
> I am seeking some feedback/help with my BGP configuration. I am peering with
> two providers level3 and tw. Unfortunately
day, January 29, 2014 9:20:32 AM
> Subject: RE: BGP multihoming with two address spaces
>
> Perhaps L3 is preferring the routes it hears from TW over the ones it hears
> from you. Perhaps there is a community string you can attach to your
> announcements to one or both providers
Jenkins [mailto:j...@breathe-underwater.com]
Sent: Wednesday, January 29, 2014 7:45 AM
Cc: nanog@nanog.org
Subject: Re: BGP multihoming with two address spaces
I am announcing two separate /24s. 8.37.93.0 and 207.114.212.0.
Joe
On Jan 29, 2014, at 4:21 AM, Sasa Ristic wrote:
> How are
I am announcing two separate /24s. 8.37.93.0 and 207.114.212.0.
Joe
On Jan 29, 2014, at 4:21 AM, Sasa Ristic wrote:
> How are you announcing your address space now?
>
> On Wed, Jan 29, 2014 at 12:32 PM, Joseph Jenkins
> wrote:
>> I am seeking some feedback/help with my BGP configuration. I
How are you announcing your address space now?
On Wed, Jan 29, 2014 at 12:32 PM, Joseph Jenkins
wrote:
> I am seeking some feedback/help with my BGP configuration. I am peering with
> two providers level3 and tw. Unfortunately all of my address spaces are
> preferring the route over tw rather
I am seeking some feedback/help with my BGP configuration. I am peering with
two providers level3 and tw. Unfortunately all of my address spaces are
preferring the route over tw rather than level3. I have tried Prepending my AS
and the carriers AS to the path on the tw side and I see those up
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