[afnog] BGP Redondancy Test

[Regardt van de Vyver]

Hi Christian,

Your design is typical of many ISPs trying to get some network resilience.
In your case getting failover/resilience is the easy part. The more
complicated portion is going to be to manage the inbound traffic (ie which
link you prefer the traffic coming in on) - especially if the links have
different capacities.

While some would strangle me for recommending this the following works
reasonably well:
Lets say you have a /21 of total space
Announce the full /21 out to both ISPs
Announce a set of /24's out each of the ISPs to balance inbound traffic

If either link fails the generic /21 will keep traffic flowing.

Hope you were not looking for much more detail?

If you have ongoing hassles with decent inbound traffic management - contact
me off-list - we have some bits that can assist ;-)

Regardt



-----Original Message-----
From: afnog-bounces at afnog.org [mailto:afnog-bounces at afnog.org] On Behalf Of
Bope Christian
Sent: 12 October 2010 06:12 PM
To: afnog
Subject: [afnog] BGP Redondancy Test

Dear All,

would you please help me to set up the configuration for my Network in the
attached file (Design)

I have 2 ISP for Redondancy and i want implement the BGP for my network in
case who one link goes down the business will not impacted.

Thanks you for your Support

--
Best Regards
Christian Bope D
Gtalk : christianbope at gmail.com
Msn : christianbope at hotmail.com
Phone : +243993005258