Ip Network Requirements; General Introduction; Protocol - Siemens HiPath 5000 Service Manual

ip_.fm
IP Fundamentals

IP Network Requirements

13.2 IP Network Requirements
For special requirements regarding bandwidth, delay, QoS, etc. for a HiPath 3000/
>
5000 V6.0 customer IP network, please refer to the requirement specifications in the
HiPath 3000/5000 solution contract.
13.2.1

General Introduction

A number of protocols play a role in data communication (X.25, Frame Relay, ATM and TCP/
IP). The IP (Internet Protocol) switching layer is the Internet's key protocol and permits interop-
erability with other networks and protocols, for example, Ethernet, X.25, Frame Relay and ATM.
IP is consequently often used as a synonym for the technology as a whole. The protocols TCP,
UDP and RTP are used by the various applications and requirements in the Internet, such as
"File Transfer (FTP)", "e-mail (SMTP)" and "WWW".
RTP (Real Time Protocol) is used for voice transmission. The term "Voice over IP (VoIP)" indi-
cates that the IP protocol is used to transport voice information.
There are nowadays various protocols that result from the efforts of diverse standardization
bodies and standardization drives.
13.2.2 H.323 Protocol
H.323 encompasses the following subjects:
Signaling (H.245, etc.)
●
Video transmission
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Voice transmission/voice compression, for example
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– G.723.1 (5.3/6.3 Kbps)
– G.729A (8 Kbps)
Data applications (Application Sharing, T.120)
●
It is clear that this standard offers much more than just what is needed for voice transmission
via data networks. H.323 was developed for multimedia applications.
13-2
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
P31003-H3560-S403-54-7620, 09/05