Lectures notes for 2010 - KTH

Multicasting
Example: Transmitting a file from C to A, B, and D.
✘Using point-to-point transfer, some links will be used more than once to
send the same file
✔ Using Multicast
A
D
3
Point-to-point
Link A B E D Total Multicast
1 1 1 1
2 1 1 2 1
5 1 1 2 1
6 1 1 1
2 1 1 2 4
1
6
B
E
4
2
5
C
Maguire Multicasting 8: 33 of 78
maguire@kth.se 2010.03.21 Internetworking/Internetteknik