I've seen that before, but not with fiber anywhere. My current deployments with RB2011 don't show this and it's similar to your setup.
From: Af [mailto:[email protected]] On Behalf Of Adam Moffett via Af Sent: Thursday, September 25, 2014 2:41 PM To: Animal Farm Subject: [AFMUG] Mikrotik-tik-tik-tik So I've got several setups like this: CCR <-> SFP <-> Fiber <-> SFP <-> RB2011 sometimes pinging the RB2011 I can see this once per second delay. Those pings are at an interval of .2 seconds (ping -i .02) so you can see the delay on every 5th packet corresponds to a once per second "tick" of some sort. If I vary the interval, the tick still occurs every one second. I have multiple installations that do this, and multiples that don't....and I cannot find any rhyme or reason to it. Connected to one CCR on SFP2 I have an RB2011 that has the symptom, and then I made a virtually identical installation on SFP3 that doesn't do it. The only thing different is the IP addresses and the length of the fiber (3 feet on the good one, a couple thousand feet on the bad one). The delay varies anywhere from a few ms to upwards of a hundred ms, and when it's high it affects VoIP so it is a real issue. I have a few more combinations of things to test, but I wonder if somebody has seen this already who can save me a ton of time. Anybody? P.S.: I emailed [email protected]<mailto:[email protected]> yesterday. Do they eventually respond or is it a blackhole? [cid:[email protected]]
