Question about SSDP and encryption

[denitora123 0]

Hello! When I installed ''WireShark'' program to capture my internet traffic with AirVPN, I noticed that there were readible texts under the protocol SSDP. As I don't know much about this stuff, I would like to ask if it is normal for there be visible, non encrypted text under the protocol SSDP. 

(Note: Under other protocol names, the texts are all meaningless random stuff except the broadcasting ones.)