Re: BGP multihoming issue

Jack,

The issue is very difficult to comprehend without the correct details.
Sanitize your configuration ( hiding your AS and changing the ips somewhat)
and post as much information as possible.
Once you provide that information, I am certain that your issue will be
tackled/discussed and probably resolved by the engineers in
this forum.

Thanks

On Sat, Dec 5, 2009 at 9:55 PM, jack daniels <jckdaniels12_at_gmail.com> wrote:

> Hi guys,
>
> I have a scenario where customer connects to 2 diffrent ISP. Customer has
> taken a block of IP ADDRESS from APNIC ( lets says 1.1.0.0/23)
>
> Now via ISP1 I advertise 1.1.0.0/24 and 1.1.1.0/23<<<<<<Primary for
> 1.1.0.0/24 and secondary for 1.1.1.0/24
>
> Now via ISP2 I advertise 1.1.1.0/24 and 1.1.1.0/23<<<<<<Primary for
> 1.1.1.0/24 and secondary for 1.1.0.0/24
>
> ISSUE - when I shut down the link of ISP1 then my 1.1.1.0/24 works but MY
> 1.1.0.0/24 SUBNET IS NOT GOING THROUGH ISP.
> WHEN I CALLED ISP2 they say we see 1.1.0.0/23 VIA ISP1 STILL.
> <<<<<<<<<<POINT 1
>
>
> when we no shut the link to ISP1 then ISP2 say THEY RECIVE 1.1.0.0/23 FROM
> customer connected to ISP2.<<<<<<POINT 2
>
>
> Can some one help me with this issue or if some one has seen this issue in
> past ,,,,, why ISP2 is still recieving route from ISP1 when customer LINK
> to
> ISP1 is shutdown and
> why we are not preffering route for 1.1.0.0/23 from customer conneted to
> ISP2/
>
> Regards
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>
>
>
>

-- 
It is said that if you know your enemies and know yourself, you will not be
imperiled in a hundred battles; if you do not know your enemies but do know
yourself, you will win one and lose one; if you do not know your enemies nor
yourself, you will be imperiled in every single battle.
Blogs and organic groups at http://www.ccie.net