automatic failover for incoming traffic

[woongko]

Hi,

Is there a way to configure automatic failover for incoming traffic from two different ISPs? My company can't afford ASN for BGP configuration but I need to other way to set up automatic failover for incoming traffic from several other branch offices.
Any help will be appreciated.

Dave

 

[JOAMON]

The main thing to consider when talking about redundancy is that in order for it to be truly redundant then the copper into the building must come from differnet manholes and terminate at seperate CO's with different ISP's. Otherwise if all the copper comes into the building from the same manhole and terminates at the same CO then if the fiber seeking backhoe digs up the copper trunk then you still lose everything and if the CO has issues then you could lose it all as well. We only have one copper path to our building and only one possible CO to terminate into. So we chose to go with two T1 lines bonded together in a Multilink PPP bundle giving us 3 meg of bandwidth. While this is not redundant in that since is does have some redundancy in that if one T1 line fails the circuit does not go down it just looses 50% of it's bandwidth. We have over the course of time lost one of the two for brief periods and to the best of my knowledge have never totally lost connection. If all of the copper runs into your building in the same manner as ours then you may want to see if there is a wireless provider in your area that can provide a failover backup method for you.