My trace route shows that once my traffic enters Zayo network it becomes terribly unstable and most rechecks are even showing different routes on their side. Apparently EU-US connection is going now this way and is therefore affected.
On 30. Sep 2022, at 17:07, Jeremy Stanley <fungi@yuggoth.org> wrote:
On 2022-09-30 15:53:22 +0100 (+0100), Neil Jerram wrote: [...]
For me it would be coming from wherever Semaphore's machines are. But I also tried from my own laptop, based in Cambridge UK, and that failed as in my report that started this thread. My ISP is Shell Energy.
I just tried again from my laptop, and now the clone has succeeded.
Our server farm for Git is generously hosted within VEXXHOST's San Jose USA public cloud region, so it's possible something is causing disconnects reaching it from some parts of the 'net and not others. I'm connecting to it from Charter Cable in the USA, who peers with Zayo (formerly AboveNet) in Atlanta, and then VEXXHOST peers with them in San Jose. Not exactly next door, but I'm only traversing one backbone provider to get there (and with access to the server I've confirmed the return route is mostly symmetrical though comes back through a Zayo/Charter peering in Washington DC).
To rule out IP protocol differences, I've done repeated git clone tests over both IPv4 and IPv6 too, with no observable issues. -- Jeremy Stanley