Hey Tim,

yes this is possible.
Internally it is called the “GraphMLTopologyProvider” which basically takes a 
XML formatted file and render it.

How to create this file is documented in detail: 
http://docs.opennms.org/opennms/releases/19.1.0/guide-development/guide-development.html#_topology
 
<http://docs.opennms.org/opennms/releases/19.1.0/guide-development/guide-development.html#_topology>

If you have any questions, let me know I can guide you through the steps.
The best way of contacting me is chat.opennms.org <http://chat.opennms.org/>
My handle is mvrueden

Kind regards
- Markus


> On 15. May 2017, at 16:34, tliu <tim....@external.thalesgroup.com> wrote:
> 
> Hi,
> 
>      Is  there a way to draw a map of network topology  manually with
> opennms 19.0.1?  because our devices do not support LLDP/CDP.
> 
>      Thanks
> 
>   Tim Liu
> 
> 
> 
> --
> View this message in context: 
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> 
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