ISP Load balancing

[tvanderwerken]

Let's see if I can explain this. I have 2 ISP connections, one is an OC3 and the other an OC12, they are on 2 different routers each feeding to 2 different DMZ's. What my question is, because of billing (the OC12 is burstable whereas the OC3 is a flat rate contract for another 4 months) I want to use the OC3 as much as possible without using the OC12, UNTIL the utilization on the OC3 reaches 75-80% at that point have some traffic moved to the OC12, is there any way to do that; short of buying a route optimizer of some sort.

The outside routers are 7206(OC3), 7609(OC12), one DMZ is firewalled with PIX525 and the other is Checkpoint.

[spremkumar]

Hi

Do u hve anything like GLBP in mind which would be a best best in this case though i couldnt get a clear picture about ur topology .

whts u r normal utilisation in OC3 link ??did u try to put all u r whole traffic on the OC3 link ?if yes whts ur input about the traffic on tht time ??

coz if u want to fully utilise the OC3 link then u can define some policy routing in the OC12 connected router so that it can redirect all the traffic to OC3 connected router.

if the OC3s ethernet is not reachable we can use OC12 but dont think the way of making OC3 to act as a active monitor and to shed the traffic to OC12 connected router when the traffic reaches 70 or 75% on it.

But again if its connected to the same router like both OC links r in same router u wont be having any problems in having the load shedding once the traffic in OC3 reaches 75%.

hope others too can feed their inputs about this ...

regds