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, if the path to ISP#1 is lousy and the path to ISP#2 isn't, the only thing that you, the customer, can control is the choice between the two. How the packets are routed between ASes is out of scope and, frankly, should not interest you very much. It should interest the ISP, and your suggestion to give them a chance to fix their connectivity certainly has merit.
For example, last night, I have redundant connectivity, with different methods of connecting to an ISP and two different ISPs. Last night a SKYPE call on one kept dropping, so I switched to the other, where it went on for an hour with no drops. Not very usefull ancedotal evidence, but for me it worked. :-)
Besides, paths are complicated if the OP is trying to connect to his office through an Israeli ISP from, say the US or Australia. If the whole path is inside Israel then the number of ASes along the path is actually small to trivial.
Sorry, I ASSUMED he was talking about paths outside of Israel. If he's talking about paths inside of Israel the best thing he could do IMHO is to buy an NGN line for the connection, route it through the same ISP as the destination and use it as a static route on those systems that need to connect to it.
For example, if their current router is at 192.168.1.1 add the new one at 192.168.1.2 and have a route for the server (or subnet) it is on via 192.16.8.1.2, with the defalt route still being 192.168.1.1.
I have my DHCP servers set up to route a particular system via one of the lines or the other, and shell scripts/batch files to switch as necessary.
Geoff. -- Geoffrey S. Mendelson, N3OWJ/4X1GM Making your enemy reliant on software you support is the best revenge. _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
