No errors or packet loss. Strangely, it seems to be preferring the Rocket M5 backhaul over the SIAE 11GHz link. The MTU on both ends of the link has remained at default on these. I'll double check, but unless it changed itself it should be the same.
On Wed, Jul 5, 2017 at 8:13 PM, George Skorup <[email protected]> wrote: > Errors or packet loss? Something rate limiting multicast? Has someone > recently changed MTUs? I don't know if RouterOS will even log OSPF MTU > mismatches. Never tried it. If the IP/L3 MTUs don't match, then OSPF is not > gonna have a good time. OSPF relies on IP since there is no native > fragmentation in the protocol. > > As far as NTP and/or accurate time, I haven't experienced any issues with > that in regards to OSPF. I discovered a router where the NTP process > appeared to have crashed and the clock was off by like 10 minutes. OSPF was > humming along with two neighbors for months and a third for hours because > the adjacent router was rebooted. > > On 7/5/2017 7:20 PM, Darin Steffl wrote: > > I also recommend only using bug fix release for mikrotik. Also make sure > you have clocks synced to an ntp source on every mikrotik router and that > it's accurate. > > On Wed, Jul 5, 2017 at 7:09 PM Jason McKemie < > [email protected]> wrote: > >> Thanks. I'll try 6.38.7 tonight. >> >> There haven't been many changes to the network, and every is pingable. I >> did add one static route for a Baicells eNB a week or two ago, but the >> problem cropped up more recently. I'll have to look into that a bit more. >> >> On Wed, Jul 5, 2017 at 6:59 PM, Chris Wright <[email protected]> wrote: >> >>> I recommend sticking to the Bugfix releases (currently 6.38.7). >>> >>> >>> >>> Did anything happen recently that could possibly have provoked the >>> disappearance like a VLAN or other L2/L3 change? Are the neighbors pingable >>> on their backbone IPs? >>> >>> >>> >>> Chris Wright >>> >>> Network Administrator >>> >>> >>> >>> *From:* Af [mailto:[email protected]] *On Behalf Of *Jason McKemie >>> *Sent:* Wednesday, July 05, 2017 4:53 PM >>> *To:* [email protected] >>> *Subject:* [AFMUG] Mikrotik OSPF >>> >>> >>> >>> Has anyone seen issues with Mikrotik OSPF neighbors just disappearing >>> for no apparent reason? All of my links are ok, but I OSPF just isn't >>> picking anything up on one of them. I might try upgrading both of the >>> Mikrotiks involved, this feels like a bug. I have 6.38.5 on one end and >>> 6.38 on the other, both CCR's. >>> >> >> -- > Darin Steffl > Minnesota WiFi > www.mnwifi.com > 507-634-WiFi > <http://www.facebook.com/minnesotawifi> Like us on Facebook > <http://www.facebook.com/minnesotawifi> > > >
