Re: [opendds-main] TCP communication between eProsima FastDDS and OpenDDS

[Adam M. <mi...@ob...>]

Hi Charles,

On 6/16/2020 7:53 AM, Charles Kalleppally wrote:
> I am quite new to DDS in general and primarily a Java developer (that’s why I am having a deeper look into OpenDDS Java-bindings), so please bear with me. Currently I am investigating if it is possible to have an eProsima FastDDS publisher that sends messages via TCP to a OpenDDS subscriber. From my understanding this should work when DDSI-RTPS discovery (UDP) is used within a multicast supported network environment. 
>
> The intention behind using TCP is to have the OpenDDS subscriber running on a cloud VM. Checking the FastDDS documentation it should be possible:
>
> https://fast-dds.docs.eprosima.com/en/latest/fastdds/transport/tcp/tcp.html#wan-or-internet-communication-over-tcpv4 
>
> What is not really clear for me if TCP transport (FastDDS <-> OpenDDS) are compatible to each other and have different DDS implementations running for the publishing and subscribing part. What would a OpenDDS configuration look like for such a scenario? 

No, the only standard for interoperability is using rtps_udp as the transport.  You can also do this in the cloud.

Thanks,
Adam Mitz
Principal Software Engineer, OpenDDS Tech Lead
Object Computing, Inc.