I am currently evaluating Paralles Desktop for Mac on my Mac Pro 2x2.66GHz Dual-Core Intel Xeon. Everything seems to work fine, except for Bridget Ethernet networking. The data transfer is so slow that it is totally useless. I tried the same WinXP, Ubuntu and RH Linux; no difference at all.
For example, from a http-server of mine that is located on the same LAN, I measured the data transfer to be about 120 bytes per second. This is terribly slow. It is even worse with sites like www.bbc.co.uk, www.cnn.com etc. The data transfer against them is so slow that I am unable to measure it. CNN, for example, actively drops connection after a second or two, I guess due to the clients inactivity. I never got a single byte from BBC, by the way, so I have nothing to measure against. This is very, very odd.
However, ICMP-utilities (e.g. those that do not do data transfer, like ping or traceroute) get normal response times from all the sites I tried to communicate with.
After many tries, I accidentally entered the address www.google.com in my browser. Voila, the data came almost instantly. "Wow!" - I thought, "it must be that networking got better somehow". So I tried all over again all the sites I had had so much trouble with. Alas, no improvement at all. It was just Google that worked fine. I know it is bizzare...
So I started probing different sites. I found out that approx. 10% of sitets work quite fine with Parallels. For example, Google, GMail, www.tv2.no, www.gyldendal.no, www.abc.net.au are some of the sites that have normal data transfer with my virtual machine. Mu conclusion is that Parallels somehow has the capability of working properly. It is just that it does not use it every time.
The host machine (Mac OSX) does not have any problems with data transfer with anyone whatsoever, so I gues I can rule out routing problems.
Does anyone have any idea about what is going on?
For example, from a http-server of mine that is located on the same LAN, I measured the data transfer to be about 120 bytes per second. This is terribly slow. It is even worse with sites like www.bbc.co.uk, www.cnn.com etc. The data transfer against them is so slow that I am unable to measure it. CNN, for example, actively drops connection after a second or two, I guess due to the clients inactivity. I never got a single byte from BBC, by the way, so I have nothing to measure against. This is very, very odd.
However, ICMP-utilities (e.g. those that do not do data transfer, like ping or traceroute) get normal response times from all the sites I tried to communicate with.
After many tries, I accidentally entered the address www.google.com in my browser. Voila, the data came almost instantly. "Wow!" - I thought, "it must be that networking got better somehow". So I tried all over again all the sites I had had so much trouble with. Alas, no improvement at all. It was just Google that worked fine. I know it is bizzare...
So I started probing different sites. I found out that approx. 10% of sitets work quite fine with Parallels. For example, Google, GMail, www.tv2.no, www.gyldendal.no, www.abc.net.au are some of the sites that have normal data transfer with my virtual machine. Mu conclusion is that Parallels somehow has the capability of working properly. It is just that it does not use it every time.
The host machine (Mac OSX) does not have any problems with data transfer with anyone whatsoever, so I gues I can rule out routing problems.
Does anyone have any idea about what is going on?
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