We run our own internal NTP server because of this. On Jan 15, 2018 8:46 AM, "Faisal Imtiaz via Mikrotik-users" < [email protected]> wrote:
> It is very important to have the time synchronized on the different > routers for OSPF. > > Regards. > > Faisal Imtiaz > Snappy Internet & Telecom > http://www.snappytelecom.net > > Tel: 305 663 5518 x 232 > > Help-desk: (305)663-5518 Option 2 or Email: [email protected] > > ----- Original Message ----- > > From: "Steve Barnes via Mikrotik-users" <[email protected]> > > To: "Mikrotik Users" <[email protected]> > > Sent: Monday, January 15, 2018 9:31:59 AM > > Subject: Re: [Mikrotik Users] CCR 1072 BGP trivia for your Friday Night > > > We are seeing very similar issues with ospf through our brocade. It is > kind of > > like every so often a route goes stale and the brocade ignores it. I > don’t > > have to kill upstream, Just change something in the /29 OSPF path and > > everything wakes up. > > > > Have a Brocade Core and 3- 1072 distribution routers connected to > Brocade onto > > different network segments. One Dist router has no issue getting to all > > sections but another will not be able to ping one or a few /29 or /30 > even > > though all devices have the same number of routes. Quick change of a > ospf > > route or flushing the Brocade OSPF records on the Dist router port > clears the > > issue. > > > > Steve Barnes > > Wireless Ops Manager > > NLBC.com > > > > -----Original Message----- > > From: [email protected] [mailto:mikrotik-users- > [email protected]] > > On Behalf Of Dennis Burgess via Mikrotik-users > > Sent: Saturday, January 13, 2018 9:49 AM > > To: [email protected]; Mikrotik Users <[email protected]> > > Subject: Re: [Mikrotik Users] CCR 1072 BGP trivia for your Friday Night > > > > Sounds like an internal routing issue on the 1032 to me. And/or > something up > > with your firewall. I would have to take a look. > > > > Dennis Burgess > > www.linktechs.net – 314-735-0270 x103 – [email protected] > > > > -----Original Message----- > > From: [email protected] [mailto:mikrotik-users- > [email protected]] > > On Behalf Of mike.lyon--- via Mikrotik-users > > Sent: Friday, January 12, 2018 7:18 PM > > To: [email protected] > > Cc: Mikrotik Users <[email protected]> > > Subject: Re: [Mikrotik Users] CCR 1072 BGP trivia for your Friday Night > > > > No, i am only advertising the two /22s to my upstreams. Verified that > they are > > only recieving the two /22s. > > > > I should also mention that the CCR 1072 connects to a CCR 1036 and the > various > > /30s and /29s hang off the 1036. There is a 10.x /30 between the two > routers. > > The 1036 has a default route pointing to the 1072. The 1072 has two > staric > > routes routing the two /22s to the 1036. > > > > It would appear the route is getting dropped at the 1072. > > > > Joe Bob Random /30 will report that he is unable to browse the internet > at one > > moment, traceroute stops at the 1072. Drop one of the two BGP upstreams > (doesnt > > matter which one) and Joe Bob Random /30 begins to work again. > > > > Thanks, > > Mike > > > >> On Jan 12, 2018, at 17:08, <[email protected]> < > [email protected]> > >> wrote: > >> > >> Are you actually advertising /29's and /30's to your providers? > >> > >> > >> Also, what exactly do you mean by dropping /30's? Like the packets are > being > >> dropped to those ip's, or the /30's are being discarded, the routes are > >> disappearing? > >> > >> -----Original Message----- > >> From: [email protected] [mailto:mikrotik-users- > [email protected]] > >> On Behalf Of mike.lyon--- via Mikrotik-users > >> Sent: Friday, January 12, 2018 5:54 PM > >> To: Mikrotik Users <[email protected]> > >> Subject: [Mikrotik Users] CCR 1072 BGP trivia for your Friday Night > >> > >> Howdy! > >> > >> I have an interesting issue that i can’t seem to figure out... > >> > >> Quick overview: > >> > >> -1x CCR 1072 running 6.40.1 > >> -2 upstream providers, taking full tables from both to the 1072. > >> -2x public /22s behind the 1072 and am advertising both /22s to my > upstreams. > >> -The /22s are chopped up into various /29s and /30s. > >> > >> Out of the blue, the 1072 will randomly drop various /30s (havent seen > any > >> dropped /29s) out of those 2 /22s that im advertising upstream. > >> > >> If i drop one of either of my upstreams , the problem goes away and > everything > >> is swell. > >> > >> Any ideas or thoughts on what may be causing this? > >> > >> Thank You, > >> Mike > >> > >> _______________________________________________ > >> Mikrotik-users mailing list > >> [email protected] > >> http://lists.wispa.org/mailman/listinfo/mikrotik-users > >> > >> > > _______________________________________________ > > Mikrotik-users mailing list > > [email protected] > > http://lists.wispa.org/mailman/listinfo/mikrotik-users > > _______________________________________________ > > Mikrotik-users mailing list > > [email protected] > > http://lists.wispa.org/mailman/listinfo/mikrotik-users > > _______________________________________________ > > Mikrotik-users mailing list > > [email protected] > > http://lists.wispa.org/mailman/listinfo/mikrotik-users > _______________________________________________ > Mikrotik-users mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/mikrotik-users >
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