Hi,

On 14 Oct 2019, at 22:23, tschador@posteo.de wrote:

On 2019-10-14 11:48, teor wrote:

what's about the autorities maatu., tor26, bastet, gabel., and farav.?

They either:
- check IPv6 reachability, or
- have a high stable MTBF (mean time before failure):
https://consensus-health.torproject.org/#flagthresholds

Thank you for the reply. What does the 'stable MTBF' mean? Time in
seconds (18 .. 48 days) before my relay get the stable flag back?

It's a measure of the stability of your relay. A MTBF is an average time
before your relay is next expected to fail, based on its past failures.

For more details, see:
https://gitweb.torproject.org/torspec.git/tree/dir-spec.txt#n1800

Downtime was from 2019-09-24 10:00 - 2019-09-26 06:00.

Keep your relay up, and its IPv6 address reachable, and you should be fine.

The ReachableIPv6 flag is set and usage is ~5500 connections.

If your IPv6 address becomes unreachable, that counts as a failure. I don't
have exact data, but it does seem that the IPv6 authorities think your relay
has a lower stability.

T