Re: [Babel-users] failing over faster?

2016-04-25 Thread Dave Taht
On Mon, Apr 25, 2016 at 4:33 PM, Juliusz Chroboczek wrote: >> A good question would be, what would the ideal time between tests be >> for the network to stablize? 3 minutes? At least in one series I'd >> started tests back to back, and didn't kick in the drop link stuff at >> the right times. > >

Re: [Babel-users] failing over faster?

2016-04-25 Thread Juliusz Chroboczek
> A good question would be, what would the ideal time between tests be > for the network to stablize? 3 minutes? At least in one series I'd > started tests back to back, and didn't kick in the drop link stuff at > the right times. SOURCE_GC_TIME is 200 hold time is 3.5 * update_interval so in

Re: [Babel-users] failing over faster?

2016-04-25 Thread Dave Taht
and in other news the odroid c2's current kernel, and the rpi3 and rpi2, now all do IPV6_SUBTREES correctly. ___ Babel-users mailing list Babel-users@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/babel-users

Re: [Babel-users] failing over faster?

2016-04-25 Thread Dave Taht
There is no firewall in this configuration, my guess was that netperf had got a noroute icmp message and aborted the tcp flow. On Mon, Apr 25, 2016 at 1:03 PM, Juliusz Chroboczek wrote: >> http://blog.cerowrt.org/post/failing_over_faster/ > > Why does the first stream fail at time 120? Broken fi

Re: [Babel-users] failing over faster?

2016-04-25 Thread Dave Taht
Tee-hee! Don't overanalyze yet!, that was not a strictly repeatable test, as yet. (if you want access to the testbed send me a ssh key) A good question would be, what would the ideal time between tests be for the network to stablize? 3 minutes? At least in one series I'd started tests back to back

Re: [Babel-users] failing over faster?

2016-04-25 Thread Juliusz Chroboczek
> http://blog.cerowrt.org/post/failing_over_faster/ Why does the first stream fail at time 120? Broken firewall? There's something wrong in the second stream -- you're falling back in 30s, which is a tad high. Can i please see your babeld.conf? -- Juliusz _

Re: [Babel-users] failing over faster?

2016-04-25 Thread Juliusz Chroboczek
> http://blog.cerowrt.org/post/failing_over_faster/ Nice. Could you please add a caption to the figures, and link the tags to the images (I know, I can get the full-size figures by opening the target of the tag). -- Juliusz ___ Babel-users mailing l

Re: [Babel-users] failing over faster?

2016-04-25 Thread Dave Taht
Thank ghu we aren't homenet! Wires are dead! :) I will incorporate your comments later today. Until then, there's pictures and data now up at: http://blog.cerowrt.org/post/failing_over_faster/ I am quite puzzled as to how long it takes to fail over even in the good cases. I guess I gotta take so

Re: [Babel-users] failing over faster?

2016-04-25 Thread Juliusz Chroboczek
> 8+ years ago, with ahcp and babel, and a network configured to use > that with a single static ip address on both the ethernet and wifi, I > could do that. My own networks were setup that way, anyway... I did it > all the time. It was wonderful. I never had to think about it. Dave, the plan is t

Re: [Babel-users] failing over faster?

2016-04-25 Thread Juliusz Chroboczek
>> Babeld is already monitoring netlink messages (see funciton filter_netlink >> in kernel_netlink), but it looks like this mechanism is not working in >> your particular case. I'll try to reproduce the issue, but I don't own >> a Raspberry Pi. > Maybe the typical problem with IFF_UP and IFF_RUNN

Re: [Babel-users] failing over faster?

2016-04-25 Thread Dave Taht
This ended up being a deeply philosophical digression into routing behaviors that I think I'll have to blog about, with pictures, to fully describe. What I want is a world of ubiquitous always-on connectivity[1] - where you can be at your desk with 20 connections nailed up, listening to an audio s