James F. Kurose, Keith W. Ross

Problems

Computer Networks And The Internet

6

9780132856201

2

Equation 1.1 gives a formula for the end-to-end delay of sending one packet

of
length *L
*over
*N
*links
of transmission rate *R*.
Generalize this formula for sending *P
*such
packets back-to-back over the *N
*links.

Consider the given data

*N* = Total number of links

*R* = Transmission rate

*L* = Packet length

*P* = packets that tramnsmit over the *N* link

The following is the formula of back-to-back delay of sending *P *packets, each of length *L* over *N* links of transmisson rate

first packet's delay but, consecutive packet's delay would be , because they are not at the beginnig. They are at the router just before the final host. When a packet comes to final destination, at the same time next packet come to the router previous packet left. Then formula would be . First term for the first packet and second term is for remaining packets.

Yes this is the correct formula,

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