Hi, We are testing protocols on our lab platform and we would like to simulate communication 2 types of communication : - From terminals to service platform using a 3G (HSPA / HSPA+) Access connection - From terminal to service platform using a WiFi Access connection We are using dummyNet to simulate the links so we are interested in IP characteristics layers for Packet loss Rate, bandwidth and latency. Values depends on multiple factors, but we would like to know what mean values are considered when services are deployed. Currently we are considering the following values. Packet Lost Rate for L2 seems 7% for Wifi and 5% for 3G. We are wondering how L3 is affected? Parameter | Wifi (802.11a/g) | 3G (HSDPA) Latency 100 ms 60 ms Bandwidth 5 Mbps 3 Mbps Packet Lost Rate XXX XXX Any comment links will be appreciated. Regards, Daniel -- Daniel Migault Orange Labs / Security Lab +33 (0) 1 45 29 60 52 +33 (0) 6 70 72 69 58