Specifications

3000sb4.fm
P31003-H3560-X100-1-7618, 09/05
HiPath 3000/5000 V6.0, System Description
4-1
For internal use only HiPath 3000/5000 in the LAN Network
Network Analysis
4 HiPath 3000/5000 in the LAN Network
4.1 Network Analysis
Several protocols are used in data communications (X.25, Frame Relay, ATM and TCP/IP). The
network layer IP (Internet Protocol) forms the key Internet protocol which enables interopera-
bility with other networks and protocols such as Ethernet, X.25, Frame Relay and ATM. This is
why IP is often used as a synonym for the entire technology. The protocols TCP, UDP and RTP
are used for the different applications and requirements in the Internet such as "File Transfer
(FTP)", "E-mail (SMTP)" and "WWW". The RTP (Real Time Protocol) is used for transmitting
voice data. The term "Voice over IP (VoIP)" describes how the IP protocol is used to transport
voice information.
Different protocols already exist which result from various standardization bodies and endeav-
ors. The main standards are as follows:
● H.323
● H.450.x
● SIP (Session Initiation Protocol, for Internet conferencing and telephony)
● MGCP (Media Gateway Control Protocol)
Whereas H.323 and H.450 are "real" ITU-T standards, SIP is an "industry (de facto) standard)"
from the IETF (Internet Engineering Task Force). MGCP emerged from the SGCP (Simple
Gateway Control Protocol) and the IPDC (Internet Protocol Device Control) and has been sub-
mitted as a proposal to the ITU-T and the IETF.
SIP is an easy-to-implement standard which was developed to control Internet multimedia con-
ferences, particularly to support voice communication.
MGCP describes the connection setup and cleardown of intelligent telephones in networks with
packet transmission.