alt Hacker News<60s sounds about right as a general safe estimate. I just mean people should expect 1-2ish orders of magnitude more than <1s from a downed link with internet BGP upstreams in a multihomed situation.
<60s sounds about right as a general safe estimate. I just mean people should expect 1-2ish orders of magnitude more than <1s from a downed link with internet BGP upstreams in a multihomed situation.
I’m saying that’s not a correctly configured link for fast failure.
<1 second was normal for hard link down events or explicit withdrawals. Anything above that was waiting for some BGP peer timeout or some IGP event.
If your ISP is taking longer than 1 second to propagate your change, you’ve been put in some dunce protection box.