PR JarKom A
Nama : Annisa Mutiafarha
NPM : 0806334672
P5, P6, P7, P8, P9
P5. This elementary problem begins to explore propagation delay and
transmission delay, two central concepts in data networking. Consider two
host, A and B, connected by a single link of rate
R
bps. Suppose that two hosts
are separated by
m
meters, and suppose the propagation speed along the link is
s
meters/ sec. Host A is to send a packet of size L bits to Host B.
a.
Express the propagation delay,
dprop
, in terms of
m
and
s
d
prop
=
m
/
s
b.
Determine the transmission time of the packet,
d
trans
, in terms of L and R
d
trans
=
L
/
R
c.Ignoring processing and queueing delays, obtain an expression for the end
toend delay
d = d
trans
+ d
prop
= m / s + L / R
d.
Suppose host A begins to transmit the packet at time t = 0. At time t =
dtrans
, where is the last bit of the packet
Host A
e.
Suppose
dprop
is greater than
dtrans
. At time t =
dtrans
, where is the first bit of
the packet
Jalur penghubung dari Host A ke Host B
f.
Suppose
dprop
is less than
dtrans
. At time t =
dtrans
, where is the first bit of the
packet
Host B
g.
Suppose s = 2,5 . 10
8
meters/sec, L = 100 bits, and R = 28 kbps. Find the
distance m so that
dprop
equals
dtrans
d
prop
=
dtrans
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View Full Documentm / s
=
L / R
m
=
L s
/
R
m
= (100 bits) (2.5 . 10
8
meters/sec) / (28 kbps)
m
= 8,9 . 10
6
meters = 8900 km
P6.
In this problem we consider sending realtime voice from Host A to Host B
over a packetsswitched
network (VoIP). Host A converts analog voice to a
digital 64kbps bit stream on the fly. Host A then groups the bits into 56byte
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 Spring '08
 setiadiyazid
 Networking, 103 sec, Maka didapat

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