Load balance ambed

Has anyone successfully load balanced traffic to ambed?

My application is that I want to have 2 sites, each with 6 channels, for a total of 12.  nginx can do UDP load balancing and I've set it up so that traffic from the load balancer address hits an ambed instance.  There is some negotiation traffic that seems to go back and forth, but transcoding never succeeds.

Any thoughts (other than give up) on this?

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