Re: UDP packets loss at Israeli ISPs during peak hours

On 03/07/11 08:28, Arie Skliarouk wrote: > Hi, > > On Sun, Jul 3, 2011 at 08:02, shimi > wrote: > > If you want, prior to calling them, to combat them with their own > weapon, thankfully there's a UDP protocol that probably no ISP > would want to degrade; Try

Re: UDP packets loss at Israeli ISPs during peak hours

On Jul 3, 2011, at 2:39 PM, Oleg Goldshmidt wrote: No, Geoff, I am not missing that. What you are saying is that the 50% loss is over the whole path that includes numerous "autonomous systems" (AS), and not all of it may occur inside the ISP's network. yes. While this is obviously correct,

Re: UDP packets loss at Israeli ISPs during peak hours

On Jul 3, 2011, at 12:39 PM, Tzafrir Cohen wrote: FTP? TFTP? You're right, I think I confused the two. Regular FTP uses TCP. Geoff. -- Geoffrey S. Mendelson, N3OWJ/4X1GM Making your enemy reliant on software you support is the best revenge. __

Re: UDP packets loss at Israeli ISPs during peak hours

On Sun, Jul 3, 2011 at 11:23 AM, geoffrey mendelson wrote: > However Oleg, you are missing an important bit of information. Since there > is no such thing as an "internet", one ISP can not be assumed to be at all > like another. In the real world, such things are determined by how good the > conn

Re: UDP packets loss at Israeli ISPs during peak hours

On Sun, Jul 03, 2011 at 08:25:27AM +0300, geoffrey mendelson wrote: > HTTP was built around TCP because the designers wanted 100% reliablilty > instead of (possible) better performance. > > FTP was built on neither. The FTP protocol uses UDP, but includes a > rudimentry implementation of the sa

Re: UDP packets loss at Israeli ISPs during peak hours

On Jul 3, 2011, at 10:25 AM, Oleg Goldshmidt wrote: We are all familiar with UDP vs. TCP tradeoff, but I think it is quite irrelevant in the context. The OP sees 50% packet loss through ISP#1 and zero packet loss through ISP#2. I do not think that one can claim that 50% loss is "normal" for UDP

Re: UDP packets loss at Israeli ISPs during peak hours

We are all familiar with UDP vs. TCP tradeoff, but I think it is quite irrelevant in the context. The OP sees 50% packet loss through ISP#1 and zero packet loss through ISP#2. I do not think that one can claim that 50% loss is "normal" for UDP and the network works "as designed". The "upper" TCP wi

Re: UDP packets loss at Israeli ISPs during peak hours

On Sun, Jul 03, 2011, geoffrey mendelson wrote about "Re: UDP packets loss at Israeli ISPs during peak hours": > That's 10 years old. Even then it was questionable, UDP packets were > dropped by ISPs all over the world when congested. That's why I worded The "e

Re: UDP packets loss at Israeli ISPs during peak hours

2011/7/3 Arie Skliarouk > Hi, > > The company I work at uses openvpn extensively. We settled on UDP-based > protocol as it is more effective than TCP based. > > Inter-Israeli VPN connection works perfectly all of the time, whereas > international VPN has erratic behavior on at least one ISP. I su

Re: UDP packets loss at Israeli ISPs during peak hours

2011/7/3 Arie Skliarouk > Hi, > > > On Sun, Jul 3, 2011 at 08:02, shimi wrote: > >> If you want, prior to calling them, to combat them with their own weapon, >> thankfully there's a UDP protocol that probably no ISP would want to >> degrade; Try switching to port 53 :-) >> > > I think that would

Re: UDP packets loss at Israeli ISPs during peak hours

On Sun, Jul 3, 2011 at 8:25 AM, geoffrey mendelson < geoffreymendel...@gmail.com> wrote: > > On Jul 3, 2011, at 8:02 AM, shimi wrote: > >> >> There's a very good reason of using UDP and not TCP for tunneling. >> http://sites.inka.de/bigred/**devel/tcp-tcp.html

Re: UDP packets loss at Israeli ISPs during peak hours

On Jul 3, 2011, at 8:28 AM, Arie Skliarouk wrote: I think that would not work as I observe frequent name server errors at exactly same periods (I am using Google's free DNS servers 8.8.8.8 and 8.8.4.4). Hmm, need to switch to the local DNS servers... UDP is UDP. Google needs to have DNS

Re: UDP packets loss at Israeli ISPs during peak hours

Hi, On Sun, Jul 3, 2011 at 08:02, shimi wrote: > If you want, prior to calling them, to combat them with their own weapon, > thankfully there's a UDP protocol that probably no ISP would want to > degrade; Try switching to port 53 :-) > I think that would not work as I observe frequent name serv

Re: UDP packets loss at Israeli ISPs during peak hours

On Jul 3, 2011, at 8:02 AM, shimi wrote: There's a very good reason of using UDP and not TCP for tunneling. http://sites.inka.de/bigred/devel/tcp-tcp.html That's 10 years old. Even then it was questionable, UDP packets were dropped by ISPs all over the world when congested. That's why I

Re: UDP packets loss at Israeli ISPs during peak hours

On Sun, Jul 3, 2011 at 7:40 AM, geoffrey mendelson < geoffreymendel...@gmail.com> wrote: > > On Jul 3, 2011, at 6:11 AM, Arie Skliarouk wrote: > > Hi, >> >> The company I work at uses openvpn extensively. We settled on UDP-based >> protocol as it is more effective than TCP based. >> >> Inter-Isra

Re: UDP packets loss at Israeli ISPs during peak hours

On Jul 3, 2011, at 6:11 AM, Arie Skliarouk wrote: Hi, The company I work at uses openvpn extensively. We settled on UDP- based protocol as it is more effective than TCP based. Inter-Israeli VPN connection works perfectly all of the time, whereas international VPN has erratic behavior on a

Re: UDP packets loss at Israeli ISPs during peak hours

It's probably due to their over commit, and it means your UDP packets are in queue until expired. Since Israeli ISPs has learned the trick, I tend to believe ICMP packets have high priority, so that no customer will be able to complain. When you can't complain, well, it means that the problem is wi

UDP packets loss at Israeli ISPs during peak hours

Hi, The company I work at uses openvpn extensively. We settled on UDP-based protocol as it is more effective than TCP based. Inter-Israeli VPN connection works perfectly all of the time, whereas international VPN has erratic behavior on at least one ISP. I suspect the ISP (XFone 018) dropping UDP