Based on Problem P$10$:

Consider a packet of length $L$ that begins at end system A and travels over three

links to a destination end system. These three links are connected by two packet

switches. Let $d_i,s_i,$ and $R_i$ denote the length, propagation speed, and the

transmission rate of link $i,$ for $i=1,2,3.$ The packet switch delays each packet by

$d_{\text{p}\text{r}\text{o}\text{c}}.$ Suppose the packet is $1,500$ bytes, the propagation speed on all three links

is $2\mathrm{.}5*{10}^8\frac{m}{s},$ the transmission rates of all three links are $2\mathrm{.}5Mbps,$ the packet

switch processing delay is $3$msec, the length of the first link is $5,000km,$ the

length of the second link is $4,000km,$ and the length of the last link is $1,000km.$

Assuming no queuing delays, what is the total end$-$to$-$end delay given these

values? Give your answer as a decimal in msec. Do not round or truncate your

answer.

Recall that $1$msec$=0\mathrm{.}001sec,1$ byte $=8$ bits, $1km=1000m,$ and $1Mbps=$

$1,000,000$ bps$.$