Oh, agreed: if it works, it works.  If it doesn't work, and it's not
something obvious like the wireless link having bad CCQs or tons of packet
loss, try NBMA.  It's only a few more steps to set up.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Scott Lambert
Sent: Thursday, July 21, 2016 3:14 PM
To: Mikrotik discussions
Subject: Re: [Mikrotik] ospf init bit

On Thu, Jul 21, 2016 at 01:38:37PM -0500, Terri Kelley wrote:
> Yup ubiquiti. Thought NBMA was more for wire
 
NBMA is for links where broadcast packets may not get through.  

I run OSPF in point-to-point mode over my UBNT links.  I don't filter
multicast on the UBNT devices and I enable WDS mode.

I haven't had much trouble with OSPF via UBNT since airOS 5.3.  Before that,
there were lots of issues and NBMA / point-to-point were the only solutions.
Point-to-point is less work to configure, so I just use that.  There are two
devices in a point to point configuration so I figure it feels correct to
put OSPF into that mode anyway.

 
> -----Original Message-----
> From: Shayne Lebrun <[email protected]>
> To: 'Mikrotik discussions' <[email protected]>
> Sent: Thu, 21 Jul 2016 1:35 PM
> Subject: Re: [Mikrotik] ospf init bit
> 
> What sort of wireless link is it between the two radios?  I'm going to go
out on a limb and guess Ubiquiti?
> 
> In any event, try NBMA.
> 
> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of Terri 
> Kelley
> Sent: Thursday, July 21, 2016 12:37 PM
> To: [email protected]
> Subject: [Mikrotik] ospf init bit
>
> Having an issue on a link between two 750s where I???m getting on the
> 750Gr2 end; Database Description packet has init bit set in middle of 
> an exchange messages all the time. This link will get to the point it 
> doesn???t pass traffic anymore and about the only way to get it to run 
> again is do a hard reboot. The other end is a 750GL. Between the two 
> are UBNT Titaniums in bridge mode. Everything is been changed out at 
> both ends except the 750GL.
>
> OSPF is set for point to point since it is basically wireless between 
> the two 750s. The same setup exists for another link off the Gr2 and I 
> do not get that message for that neighbor nor do I get it through the 
> Mimosa bridge off that router. Running v6.35 on all of them.
>
> Any clues what the cause of this is?
> 
> 
> --
> Terri Kelley
> Network Engineer
> 254-697-6710
> Farm to Market Broadband
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-- 
Scott Lambert                    KC5MLE                       Unix SysAdmin
[email protected]
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