Blackmagic Forum

Hi Guys

As my Company is already running an IP Infrastructure, I'm currently evaluating the Blackmagic IP Products. For my Bad I've found in another Post, that there is some Hard configured PTP Settings along with some other limitations. What i haven't found is some detailed Description about how PTP is set up.

So is there some technical Information about how Blackmagic thinks PTP works? In Future will there be a chance to change the settings to get the Hardware working in an already existing Infrastructure?

The second thing I've found, is that the NMOS Configuration did not behave as i would interpret the Standard. So is there a Documentation about that, like how to change RTP Payload, UDP Port, Channel width and so on?

Kind Regards
Oli

Grüezi Oli,

I've a test setup running with two 3x3 converters (and a decklink IP, but right now sticking with the converters first) on an Arista infrastructure. There are almost no settings you can adjust, i.e. PTP domain is fixed to 127. At least the connection seems to be stable once the streams are up and running. For NMOS I did some brief tests using a easy-nmos registry and Riedel NMOS explorer. However I wanted to focus on stability first.

There is almost no documentation available. Hope BMD will release some more insights and let us adjust all the settings. Maybe a little push by a big company like yours could help

Hallo Tobias

It seems we're running kind of the same Test setup . I've got it run stable on Arista HW as you do. And i also got it something like working with an Orchestrator using NMOS. For the PTP Part I think that they just implemented SMPTE 2059 with the default settings. But it would be handy to have some detailed Information about that.

Unfortunately it seems you're only able to configure only the Receivers via NMOS, not the Senders. So you need to setup the sending Multicast Address in the Desktop Video Software. Coming to the Multicast Address part as I'm only able to set one Address for Audio, Video and ANC made the Product for myself valueless. As you're not able to Control were Streams are flowing. And the AES67 Devices will kill themself receiving a Video Stream on their 1G Port to be honest.

So i hope BMD is going to change the Behavior on that otherwise this will just be some simple E/O Converter. But under the hood it could do so much more...

Guys

I have tried to add one of BMD ST-2110 to our existing 2110 system base on Grass Valley Orchestration and Cisco , you guys right , seems PTP Domain set as default ( 127 ) so if you are using different Domain you never able to lock the PTP to your master Clock ,
Second things I am not Sure by default BMD using mDNS or DNS-SD for registry , I can not even connect to our registry server .

Regards

M J