[SBE] Questions about IP multicasting

[Jonathan Solomon]

Curt

You can do unicast over public internet.

Question is, why two destinations at the STL? Redundancy? If so, you’re
better off with two encoders, two disparate paths to the STL and two
decoders. Then both are unicast.

That said, I’ve got software that can take the unicast source, use public
internet with high reliability, low overhead and nearest to zero latency
that can also output multicast at the destination.

Let me know if you would like to talk more.

Jonathan
On Fri, Dec 22, 2017 at 10:00 PM Yengst, Curt <cyengst at star991.com> wrote:

> Thanks, Gibson!  I may take you up on that.  We currently don't have a
> private and/or VPN connection established site-to-site; but as I learn more
> about this, it looks like we'll be putting one in.  I'll keep you posted.
>
>
> *Curt Yengst, CSRE*
>
> Engineer
>
> 732-770-3054
>
>
>
>
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> On Fri, Dec 22, 2017 at 9:56 PM, Gibson Prichard <gibson at prichard.tv>
> wrote:
>
>> The question I have is what is the path from the other end of the IP
>> link? Is it a private wired/wireless link (like MPLS) or is it public
>> Internet? As others have asked- if this is over the Internet, forget
>> multicast- the routers on the Internet don’t pass multicast at all.
>> In fact, many MPLS networks won’t pass multicast either. Now, if the link
>> is private, you should be able to make multicast work.
>> Several have offered their help, and I’ll throw my hat in the ring as
>> well. Email me and I can give you a call.
>> Gibson Prichard
>> WTVF Nashville
>>
>> On Fri, Dec 22, 2017 at 16:03 Yengst, Curt <cyengst at star991.com> wrote:
>>
>>> Working for a small independent TV station that is trying to set up an
>>> STL using TSoIP.  The catch is, they need to feed two separate devices at
>>> their tower site with the same TSoIP stream.  The short answer we got from
>>> the manufacturer of the ASI-to-TSoIP converter is to configure for IP
>>> multicast.
>>>
>>> I did a rudimentary test with an ASI-to-TSoIP converter going to an
>>> ethernet switch and feeding a stream to a corresponding TSoIP-to-ASI
>>> converter and to a Sencore decoder with a TSoIP receiver card.  Naturally,
>>> that worked because all equipment was connected to the same physical
>>> switch.  But, now that I've moved the "receive" end to the transmitter
>>> site, I'm having a heap of trouble getting it to work.
>>>
>>> Searching the web for all things multicast, I'm finding that this is
>>> easier said than done.  Has anyone out there in TV Land had any luck with
>>> what I'm trying to do?
>>>
>>> *Curt Yengst, CSRE*
>>>
>> --
>> Gibson Prichard
>> Nashville, TN
>> gibson at prichard.tv
>>
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