Req: GET /rd-lookup/ep?et=tag:example.com,2020:platform

Res: 2.05 Content
Payload:
</rd/1234>;base="coap://[2001:db8:3::127]:61616";ep=node5;
    et="tag:example.com,2020:platform";ct=40;rt=core.rd-ep,
</rd/4521>;base="coap://[2001:db8:3::129]:61616";ep=node7;
    et="tag:example.com,2020:platform";ct=40;d=floor-3;
    rt=core.rd-ep