Am Sonntag, 21. Dezember 2003 21:31 schrieb Augusto Cardoso: > Hi! > > I may have miss the point here, however, I have run the skystar2 > cards at 38Mbps IP payload speeds without dropping any packets for > more than 24 hours. With the FCII/FCIIB the maximum speed that I got > is about 41Mbps. With FCIII I have tested it at 78Mbps and simulated > it at 120Mbps. (Note this tests were done at B2C2 with B2C2's > drivers). When I used to work at B2C2, we focus on data applications. > That is the main reason the B2C2 Windows driver is a NDIS driver and > the B2C2 Linux driver is a network driver. Unfortunately, the B2C2 > drivers are proprietary and very cumbersome.
The problem is we are not speaking about the skystar2. With the skystar2 i have no losses, i get easy full speed with it. The problem is that the Fujitsu Siemens Rev 1.3 card doesn't work in multicast speed with an acceptable prformance (speak 3-4k vs. 120k) . After all the explanation i accept it and i think the skystar2 isn't really expensive and a second card isn't really bad in a vdr setup ;). If it could be solved however it wouldn't be bad as many people have/will have this problem. Maybe a sentence in an FAQ "fullfeatured card wont work with ip over dvb because of hardware limitations, use budget ones" would fix this bug ? ;) > We did developed a software package for testing data in Unicast and > Multicast. We also run the data in the same transponder that we run > the video/audio. We tested receiving all IP data and video/audio > without any problems. > > I haven't done much data tests with the linuxtv.org drivers, mainly > because my use is for video/audio MPEG2 data. > > Can this be a latency issue in the driver? How are you testing? What > type of applications/protocol? What's the service provider? > > Augusto > > *********** REPLY SEPARATOR *********** > > On 12/19/2003 at 6:00 PM Ralph Metzler wrote: > >Steffen Barszus writes: > > > For me the crashes are gone, but you can sure forget to try > > > dvb/ip over a nexus. I get data rates of 3-4 kB over the nexus > > > and 120 over a skystar2. If this could be fixed it would sure be > > > nice, but from current discussions i read that the card "is not > > > designed to work" for this task and i have it understood, that > > > this issue wont be fixed. > > > >The 120 kB itself are not the problem. The provider is probably > >sending more than 10-15 Mbit over one PID. At that point the card > > will start losing data. Neither the internal hardware filters nor > > the software filters (only because the whole PID has to be moved > > over the dual-ported RAM in this case) will work properly. > > Hmm in multicast this may be true and wolfgang wershofen states that VPN (no proxy) works a lot better with these cards. though i have not the money to test that (the german telekom want to have a lot to much money for that (99EUR +3months subscription) -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe linux-dvb" as subject.
