ระบบเครือข่ายเบื้องต้น ( Basic Network )

( Basic Network)

(E-mail), (MSN, ICQ), , (FTP), (Ragnarok) , (Web)

Bit () 0 1Bandwidth () bps ()

Router

LAN WAN

Switch Bandwidth 10/100/1000 Mbps

Hub Bandwidth 10/100/1000 Mbps ()

Hub SwitchHub Hub Hub Switch Switch Hub Hub (Repeater) Switch , ,

Ethernet Card

Switch Hub Bandwidth 10/100/1000 Mbps

ModemInternal ModemExternal Modem Bandwidth 56 Kbps

Access Point (wireless) Bandwidth 11/54 Mbps

Wireless Card

PCMCIAPCI for PCUSB Bandwidth 11/54 Mbps

UTP (Unshielded Twisted Pair) Ethernet Switch Hub Bandwidth 10/100/1000 Mbps < 100m

3 LAN (Local Area Network)WAN (Wide Area Network)MAN (Metropolitan Area Network)

LAN (Local Area Network) Ethernet, Fast Ethernet, FDDI, Token Ring

WAN (Wide Area Network) Lan Lan ATM, DSL, ISDN Lan

Man (Metropolitan Area Network) Wan Lan

IP Address Automatic DHCP Server Static IP Address DHCP Server

Ping -> Nslookup -> Traceroute ->

Start Menu -> Run

cmd

PingPing IP address Ex ping 158.108.1.1

TracerouteTracert IP Address Ex tracert 158.108.50.5

NslookupNslookup Ex nslookup www.google.com

Video Conference

Lan Status Video Conference (VCS) IP Address, Subnet Mask Default Gateway Ping IP Video Conference IP IP VCS Ping IP : 203.172.249.1 ( Lan VCS)

Video Conference

Video Conference

Video Conference

Bandwidth Internet

Bandwidth Internet Bandwidth Websitehttp://speedtest.adslthailand.com/ Video Conference Web Conference

Bandwidth Internet