1. How Traffic Moves over
the Internet
ISDL
BRI (Basic Rate Interface)
ISP
Internet backbone
s1170061 Synnsuke Komamura
s1170073 Marina Toda
s1170076 Tomoko Nishiuchi
s1170079 Ayaka Fujiwara

2. ISDL(Integradeted Services
Digital Network)
● ISDL is an all digital
communications line
that allows for the
transmission of voice,
data, video and
graphics, at very high
speeds, over standard
communication lines.
● The key feature of the
ISDL is that it integrates
speech and data on the
same lines, adding
features that were not
available in the classic
telephone system,

3. BRI(Basic Rate Interface)
● The standard that was
standardized by the
International
telecommunications
union.
● A single international
standard BRI is arranged
so that either a adata
terminal and two voice
terminals, three voice
terminals, or four voice
terminals can be
operated simultaneously
through the interdace.

4. ISP (Internet Service Provider)
● ISPs may provide
internet e-mail
accounts to users
which allow them to
communicate with one
another by sending
and receiving
electronic messages
through their ISP's
servers.

5. Internet backbone
● Internet backbone
set out for the main
line of the internet.
It has high-
capacity
communication
line.
● It is base that ISP
connected to other
ISP.

6. Reference
excell
http://www.excellgroup.com/
RADCOM
http://www.radcom.com/
WIKIPEDIA
http://en.mikipedia.org/wiki/
VDAT SYSTEMS
http://www.vsat-systems.com/
AIM
http://www.aim-ele.co.jp