Thomas Kunz
Systems and Computer Engineering
391
Link Layer Schemes: Summary
When is a reliable link layer beneficial to TCP performance?
nif it provides almost in-order delivery
nTCP retransmission timeout large enough to tolerate
additional delays due to link level retransmits
nBasic ideas:
–Hide
wireless losses from TCP sender
–Link
layer modifications needed at both ends of wireless link
nTCP need not be modified