H
ELECTRICITY
H
ELECTRICITY
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L69/00
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
H04L69/00
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
H04L69/30
Definitions, standards or architectural aspects of layered protocol stacks
H04L69/30
Definitions, standards or architectural aspects of layered protocol stacks
H04L69/32
Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
H04L69/32
Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level