(Illustration by Gaich Muramatsu)
> 1. What parameters should I set for rpc2 and sftp for suitable packet > queue sizes and timeout values for an ADSL connection like the one I > described above? Hi, I had this e-mail forwarded to me ... since I use Coda over ADSL from home (though I don't work on Coda). I'm not sure what the rpc2 and sftp parameters should be, but I notice another problem which I think is deeper. Coda (or rather rpc2) assumes a symmetric connection when it makes its estimates of bandwidth (i.e. it does not estimate incoming and outgoing bandwidth as separate quantities) . Over an asymmetric connection, this leads to varying and incorrect bandwidth estimation, which in turn cause Coda to flip-flop between weakly connected (client writes are logged and sent asynchronously to the servers), strongly connected (writes are sent synchronously to the server), and sometimes even disconected (writes are logged locally) state I tried to fix rpc2 to estimate upstream and downstream bandwidth separately; however, it didn't seem to improve the estimation significantly, and I didn't have time to pursue it further. If you are interested, I can send you my revised bandwidth estimation code. I would be interested to know if you run up against this problem (especially if you find a solution!) Cheers DushyanthReceived on 2001-06-24 08:56:29