0NOTIFY * HTTP/1.1
HOST: 239.255.255.250:1900
NT: uuid:schemas-upnp-org:device:tvdevice:1:abcdef
NTS: ssdp:alive
USN: uuid:schemas-upnp-org:device:tvdevice:1:abcdef
CACHE-CONTROL: max-age=1
LOCATION: http://192.168.1.10:49152/tvdevicedesc.xml

