Hello, I didn''t receive any answer or subscription confirmation from the other list yet, so I forward the problem to this list. Can anybody help? Greetings Markus ---------- Forwarded Message ---------- Subject: iproute weight balacing problem with youtube Date: Monday 27 October 2008 From: Markus Frahm <frahm@sybuca.de> To: shemminger@osdl.org, lartc@mailman.ds9a.nl Dear Stephen Hemminger, we have found a problem with ip route and multiple internet connections using the ip route ''weight'' option to balance the traffic of a NAT firewall between several lines. Internet sites like ''youtube'' show videos only with 50% probability because youtube and similar sites demand several connections (for the web site and the flash stream) to come from the same source IP. Is there a simple solution for this problem for example to increase the time in the balancing algorithm or a cache for source IPs? Regards Markus ------------------------------------------------------- ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can''t happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/
Colin Alston
2008-Dec-09 18:30 UTC
Re: [Shorewall-devel] Fwd: iproute weight balancing problem with youtube
On 2008/12/09 07:03 PM Markus Frahm wrote:> Dear Stephen Hemminger, > we have found a problem with ip route and multiple internet connections using > the ip route ''weight'' option to balance the traffic of a NAT firewall between > several lines. Internet sites like ''youtube'' show videos only with 50% > probability because youtube and similar sites demand several connections (for > the web site and the flash stream) to come from the same source IP. Is there a > simple solution for this problem for example to increase the time in the > balancing algorithm or a cache for source IPs? > Regards >Should not be a problem. YouTube uses a single stream for buffering and there should not be any conflict between a change in source address with the request for the flash applet and the stream. HTTP does not work that way... There are some protocols that do, in which case there is contrac to solve that problem, if there were a bug it would be in contrac so you should raise the issue on the Netfilter lists. I have personally used Shorewall in such a configuration (we are designing a product at the moment for that exact purpose) and have not seen any issues. Are you sure this is not a packet loss issue on one of the upstreams? -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html