Re: [GD-Windows] LAN network throttling to simulate a modem?
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From: Javier A. <ja...@py...> - 2003-08-20 10:44:33
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Like Brian said, I found much easier to write this as part of our network layer. We have full control over the kind of situations to generate. In theory, DirectPlay includes a network simulator thing with these kinds of features, but we never got it to work reliably. We would do the following types of things: - Simulate packet loss by discarding non-guaranteed packets, and delaying delivery of guaranteed packets (and all packets that follow). - Simulate network congestion by queuing and delaying packets based on amount of traffic. - Simulate high pings or lagspikes by delaying everything by a set amount of time. - Simulate network disconnection by dropping all packets. With this, a good packet sniffer to ensure that the physical traffic reflects your expectations, and some testing in real conditions, you should be good to go. With a higher level API like DirectPlay you need the packet sniffer a lot more because DP does some packet management behind your back, but the overall concept still works. Javier Arevalo Pyro Studios Ivan-Assen Ivanov wrote: > We're hunting down some nasty and rare problems in our netcode > which only happen over slow, congested connections. > Buying a bunch of modems and dialing an ISP over our > telephone exchange is an option, but seems like a major PITA. > > Have you heard about some kind of software that throttles down > your LAN connection speed, drops packets etc.? |