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Re: [milo-dev] Discovering OPC UA servers in network.

Can I follow this https://github.com/open62541/open62541 for LDS server ?.

Using open62541, Can I connect to milo server ?. 
Because it is written in C++ where as Milo is written in JAVA.

On Thu, Feb 6, 2020 at 7:17 PM Kevin Herron <kevinherron@xxxxxxxxx> wrote:
You can browse through the work done in that branch and copy parts of it for your own implementation if you want.

If all you need to do is register your server with an existing LDS that supports ME then it might not be very difficult. If you need to implement an LDS that supports ME then it will be a lot of work.

On Thu, Feb 6, 2020 at 5:32 AM J Dhanasekar <jdhanasekar@xxxxxxxxxxxxxxxxxx> wrote:
Ok.. Any other way to implement LDS-ME support ?.

I want to register different server from different host...

On Thu, Feb 6, 2020 at 6:40 PM Kevin Herron <kevinherron@xxxxxxxxx> wrote:
No, that implementation was never fully ready and was coded against a years old version. It would never merge now. I’m keeping it around as a reference in case I do implement the multicast stuff one day. 


On Feb 6, 2020, at 03:24, J Dhanasekar <jdhanasekar@xxxxxxxxxxxxxxxxxx> wrote:


Hi Kevin,

Is there any implementation available for LDS-ME ?.

I have gone through this thread "https://github.com/eclipse/milo/pull/89". But it seems that check in has not happened yet. 
Can I merge those changes in current milo code base and bring up LDS-ME support in milo ?


Thanks,
Dhanasekar

On Thu, Jan 30, 2020 at 8:53 PM J Dhanasekar <jdhanasekar@xxxxxxxxxxxxxxxxxx> wrote:

Thanks for the info. 
I will try this and get back to you..

On Thu, Jan 30, 2020 at 7:58 PM Kevin Herron <kevinherron@xxxxxxxxx> wrote:
It's a separate piece of software. The OPC Foundation has a reference implementation that you can try: https://github.com/OPCFoundation/UA-LDS

I've never used it before so I'm not familiar with how it works or how to set it up.

On Thu, Jan 30, 2020 at 6:20 AM J Dhanasekar <jdhanasekar@xxxxxxxxxxxxxxxxxx> wrote:
I am not running any Discovery Server yet.  As am in learning stage, I don't know that I need to run it separately.
How to run a Discovery Server ? Will Mil has this support or I need to run other third party like Kepware ?.

On Thu, Jan 30, 2020 at 7:43 PM Kevin Herron <kevinherron@xxxxxxxxx> wrote:
I don't know, whatever Discovery Server you are running might list servers that have registered with it. If you aren't running a Discovery Server then there's probably nothing for KSE to register with.

On Thu, Jan 30, 2020 at 6:05 AM J Dhanasekar <jdhanasekar@xxxxxxxxxxxxxxxxxx> wrote:
Thanks for quick response.

I am using Kepware KEPServerEX 6.7. I don't know this kepware server registered in Discover server service. 
How to confirm that a server is registered for Discover Server Service ?.

Thanks,
Dhanasekasr

On Thu, Jan 30, 2020 at 7:20 PM Kevin Herron <kevinherron@xxxxxxxxx> wrote:
Discovering all the servers on a network is only possible if all those servers are actively participating by registering with a Discovery Server running on your network.

You would call the FindServers service against the DiscoveryServer to get a list of registered servers and choose one to connect to from the list.


On Thu, Jan 30, 2020 at 5:40 AM J Dhanasekar <jdhanasekar@xxxxxxxxxxxxxxxxxx> wrote:
Hi Milo,

As of now, I am connecting Milo Client to single server and able to subscribe a node in that.
How to connect Mio client to multiple server ?.

Does Milo support Discovering Server facility ?.

I want to find list of OPC UA server available in my network. 
How to do that by Milo ?.


Thanks,
Dhanasekar
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