If you need to set "synchronous = no"

We want to use radius for transferring CDR records. Expected about 5000 accounting requests per second. Our plan: App(requests generator) -> Local FreeRadius proxy -> Remote FreeRadius servers. Local instance of freeradius proxy should store requests if remote server unavailable and also care about retransmissions. If proxy support only synchronous mode, I don't think it is possible to transfer 5K requests per second because of response delay. Looks like asynchronous mode can help in this case.

From my understanding synchronous mode mean - proxy does not handle next request before response on first one. Is it correct understanding? Can FreeRadius Proxy be used for my case?

Thanks, --Artem