I would expect a GigE radio to haul 9000+ byte frames, but you never know. So yeah, it needs to be on datasheets.

On 9/28/2017 8:26 PM, Eric Kuhnke wrote:
so put it in the documentation, then... :-)



On Thu, Sep 28, 2017 at 1:48 PM, Chuck Macenski <[email protected] <mailto:[email protected]>> wrote:

    Hi,

    Just to be official about is, all airFIber radios support
    transport of Jumbo packets sizes of 9000+ bytes. The currently
    supported packet size is 9600. There is no configuration required
    - they just do it.

    I am an Ubiquiti employee :)

    Chuck

    On Thu, Sep 28, 2017 at 3:35 PM, Josh Reynolds
    <[email protected] <mailto:[email protected]>> wrote:

        I'm not here for your approval friend!
        Pal!
        Buddy!

        /smacks Mike on slack

        On Sep 28, 2017 1:10 PM, "Mike Hammett" <[email protected]
        <mailto:[email protected]>> wrote:

            That's a much better statement.



            -----
            Mike Hammett
            Intelligent Computing Solutions <http://www.ics-il.com/>
            
<https://www.facebook.com/ICSIL><https://plus.google.com/+IntelligentComputingSolutionsDeKalb><https://www.linkedin.com/company/intelligent-computing-solutions><https://twitter.com/ICSIL>
            Midwest Internet Exchange <http://www.midwest-ix.com/>
            
<https://www.facebook.com/mdwestix><https://www.linkedin.com/company/midwest-internet-exchange><https://twitter.com/mdwestix>
            The Brothers WISP <http://www.thebrotherswisp.com/>
            <https://www.facebook.com/thebrotherswisp>


            <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg>
            
------------------------------------------------------------------------
            *From: *"Josh Reynolds" <[email protected]
            <mailto:[email protected]>>
            *To: *[email protected] <mailto:[email protected]>
            *Sent: *Thursday, September 28, 2017 12:54:43 PM
            *Subject: *Re: [AFMUG] Ben Moore, ubnt, fix your
            documentation of basic things!

            I think you're thinking about this too hard, or maybe I
            wasn't explicit enough. Typing from a phone causes that.

            Yes, I'm staying if you are building the type of network
            where you have identified a large MTU is desirable on the
            L2 path, you want everything to be as high as possible,
            and you will be limited by the devices smallest MTU on the
            path.

            On Sep 28, 2017 12:51 PM, "Eric Kuhnke"
            <[email protected] <mailto:[email protected]>> wrote:

                no, it doesn't, only if you are building L2 networks
                bridged between multiple locations. It's perfectly
                fine to have a router-to-router OSPF /30 link that is
                carried across a PTP system with a 1600 byte MTU
                (older Bridgewave radios for instance), then another
                separate set of OSPF interfaces onwards from that same
                router, to another router, over a 9000 byte MTU radio
                bridge. Or whatever.

                On Thu, Sep 28, 2017 at 10:41 AM, Josh Reynolds
                <[email protected] <mailto:[email protected]>>
                wrote:

                    MTU needs to be consistent on the entirety of the
                    path.

                    AirFiber supports 9600 MTU since 1.1 FW.

                    On Sep 28, 2017 12:35 PM, "Sterling Jacobson"
                    <[email protected]
                    <mailto:[email protected]>> wrote:

                        I agree, was just looking for that a week ago too.

                        I’m still unclear.

                        My backbone is generally set for 9000+ MTU.

                        Do I need to change my Mikrotik Ethernet ports
                        attached to the Air Fiber units to a specific MTU?

                        *From:* Af [mailto:[email protected]
                        <mailto:[email protected]>] *On Behalf Of
                        *Eric Kuhnke
                        *Sent:* Thursday, September 28, 2017 11:34 AM
                        *To:* [email protected] <mailto:[email protected]>
                        *Subject:* Re: [AFMUG] Ben Moore, ubnt, fix
                        your documentation of basic things!

                        oh yeah, and there is no mention of MTU
                        capabilities for any model of airfiber in the
                        most recent pdf datasheet either:

                        https://dl.ubnt.com/datasheets/airfiber/airFiber_DS.pdf
                        
<https://dl.ubnt.com/datasheets/airfiber/airFiber_DS.pdf>

                        Is that not a basic datasheet thing to list?
                        Particularly for PTP bridge radios?  I know it
                        is for every serious PTP radio I've seen from
                        almost every other manufacturer.

                        On Thu, Sep 28, 2017 at 10:30 AM, Eric Kuhnke
                        <[email protected]
                        <mailto:[email protected]>> wrote:

                            Now, I know this, and everyone on the list
                            knows this, because we've been using the
                            AF24 for years. We know we can use it with
                            either 1600 or 9000 byte MTU.

                            But I find it amazing that there is no
                            mention anywhere of max MTU (or MTU
                            settings/capabilities in general) anywhere
                            whatsoever in the ubnt AF24 users manual:

                            
https://dl.ubnt.com/guides/airfiber/airFiber_AF24_UG.pdf
                            
<https://dl.ubnt.com/guides/airfiber/airFiber_AF24_UG.pdf>

                            ctrl-f for "mtu"...  nothing.

                            People should not be required to google
                            "af24 mtu 9000" and trawl through forum
                            posts from non-ubnt-employee third parties
                            on the ubnt forum to know if a PTP bridge
                            product is going to work for a particular
                            application or not. Same goes for the
                            AF11FX and AF24HD.






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