Re: [Playerstage-users] Controlling multiple robots

[Reed H. <re...@ze...>]

> Agreed.  UDP packet loss is a bear in noisy wireless environments.
> But then imagine what TCP's back-off strategy is doing to your 
> throughput
> in such a situtation!
>
> Player supports UDP right now, but I never finished implementing the
> 3-way handshake necessary to (almost) guarantee that important messages
> get through.

One strategy we are contemplating in VOS is to use both TCP and UDP 
channels.  Normally VOS uses TCP, but  some abstractions and hooks to 
let you "plug in" different transport implementations have recently 
been added.

You just need some policy for sorting essential (TCP) messages from 
data updates (UDP, plus fits-in-a-packet constraint, maybe some basic 
ack policy)

reed

-- 
  Reed Hedges
  re...@ze...
  http://zerohour.net/~reed
  AIM: ReedHedges

  VOS/Interreality: http://interreality.org