json - what's the addressing term for L5-7 OSI layers? -


l2 use 6 bytes mac device addressing; l3 use ipv4 logical network addressing, , ipv6 encapsulate mac address; l4 use socket(ip + port) software addressing. so, what's addressing entity term l5~l7. url, rest api, json schema belong kind of concept?

you can't shoehorn internet protocol suite osi model. ip developed before osi model, , uses different world view. 2 worlds have learned things each other, difficult compare them.

for instance, layer 2 local communication protocol, while layer 3 allows routing between local networking environments. ip spans of layer 2 , of layer 3, while not addressing many of things osi does. ip datagram protocol without retransmission, while osi layer 2 lapb implements retransmission.


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