Question $7$

Consider the scenario shown in Figure below in which a server is connected to a router by a $100Mbps$ link with a $50ms$ propagation delay. Initially this router is also connected to two routers, each over a $50Mb$ ps link with a $200ms$ propagation delay. A $1Gbps$ link connects a host and a cache $($if present$)$ to each of these routers and we assume that this link has $0$ propagation delay. All packets in the network are $20,000$ bits long.

What is the end$---$to$---$end delay from when a packet is transmitted by the server to when it is received by the client? In this case, we assume there are no caches, there's no queuing delay at the routers, and the packet processing delays at routers and nodes are all $0.$

Write only numbers in the unit of $($ms$),$ rounded to two decimal places only, for example: $(1348\mathrm{.}57)$

Answer: