PP Presentation
- The reciever in the data link layer is required to hand packets to the network layer IN SEQUENCE. If you pipe line then there may be problems:
- • A frame is damaged...or lost
- • Many frames may fall on the floor w/o feedback to the sender
- • What should be done with frames following a damaged frame?
- We have seen that TFTP can have 30MB in a pipe w/o repeating a sequence number...should I drop the pipe if I get a bad frame?
- Go back N and Selective repeat are two solutions to these problems.