On Thu, Nov 26, 2009 at 11:01:37PM +0100, Ondrej Zajicek wrote:
On Thu, Nov 26, 2009 at 03:07:32PM -0600, Otto Solares wrote:
On Thu, Nov 26, 2009 at 09:03:30PM +0100, Ondrej Zajicek wrote:
On Thu, Nov 26, 2009 at 12:54:15AM +0100, KORN Andras wrote:
Hi,
we have a 5Mbps symmetric microwave uplink with one static IP and a /30 subnet. We're contemplating getting an additional ADSL connection to serve as backup. If the ISP cooperates, is there a way for me to load-balance and fail over between these two connections using BIRD? If so, how?
Hmm, load-balancing and multipath is not implemented. The best thing you can do with BIRD is to have asymetric routing (one link preferred for upstream and the other for downstream), or prefix based load-balancing (some prefixes are preferred over one link and other prefixes are preferred over the other link).
Could you please describe prefering prefixes over one link with an example please? I happen to need this but haven't figured out yet.
This can be easily done using BGP as a routing protocol - just use two BGP sessions, each over one link, export prefixes to both of them and set MED attribute accordingly.
Ok.
I don't know about clean way to do it using OSPF. I have two ideas, both are somewhat crazy:
I don't use OSPF but nice to know. thank you! - Otto