Playlist structure with backup links?

[SawyerX]

Is it possible to setup a normal IPTV playlist with seamless backup servers?

like

#EXTM3U
#EXTINF:0,TV RTL HD
http://192.168.100.8:4023/rtp/232.x.xxx.xx:5003
http://192.168.10.1:30000/rtp/232.x.xxx.xx:5003

So it would normally connect to the first and try the second only if first fails.