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Telecommunications & The Internet Basic Telecom Model
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| bet | 5/7 | | Sana | 02.12.2023 | | Hajmi | 298,5 Kb. | | #109660 |
Bog'liq Network-InternetCommon Bandwidths - 56K modem 0.056 Mbps
- ADSL 40 Mbps
- Cable Modem 50 Mbps
- T1 1.5 Mbps
- Ethernet 10 to 1,000 Mbps
- T3 44.7 Mbps
- See http://bandwidthplace.com/
Upper Tier Bandwidths OC-x mulitples of 51.85 Mbps - OC-3 155 Mbps
- OC-12 622 Mbps
- OC-48 2,488 Mbps
- OC-96 4,977 Mbps
- OC-192 9,953 Mbps
- OC-768 39,812 Mbps
Intranets - An internal network based on World Wide Web technology
- Firewall
- security software to prevent unauthorized access to an intranet
- Firebreak
- a physical break between the Internet and Intranet
- Security
- Technology Problems
- incompatibility
- limited bandwidth
- telecommunications infrastructure
- internet specialists
- Legal Issues
IP Addresses - An identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255. For example, 1.160.10.240 could be an IP address.
- Class A - 168.212.226.204
- supports 16 million hosts on each of 127 networks
- Class B - 168.212.226.204
- supports 65,000 hosts on each of 16,000 networks
- Class C - 168.212.226.204
- supports 254 hosts on each of 2 million networks
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