3. Network Layer

Data : Upper Layer data

 

DA : Destination logical address

 

SA : Source logical address

 

PI : Protocol ID

 

ST : Service type

 

NA : Next-hop logical address

 

MAC : Next-hop MAC address

 

MTU : Maximum Transfer Unit

 

H : Datagram header

 

Len : Length of data

 

 

현재 버전의 Internet Network Layer에서는 flow control이 제공되지 않는다.