, / & MSc in Computer & Information NetworksCisco Certified Network Professional TMN 22/09/2008

O

( , ) : 10 - 100 (dial-up), , , always-on : , Multimedia (+++) ( , ) -: eHealth, eGovernment, eLearning, eBusiness

(1) - DSL ( ) (CableTV-/ 90% ) - - 3 (3G mobile phones) () on-line (Fixed Wireless) (Satelite) /

(2) , ( Backbone) : + xDSL, FTTH

2 :

2)

SDHWDMDWDMMETRO-ETHERNETIP OVER DWDM

ADM-64 ADM-16 ADM-4 ADM-4 ADM-16

100%

SDH SDH 10Gbps SDH 8 600 72 .

WDM

WDM 24 ( ) 10Gbps (240Gbps) WDM 4 8 600 . WDM .

Dense Wavelength Division Multiplexing (DWDM) 40 , 10 Gbps, 400 Gbps 128 . Tbps.

IP - Ethernet 95% IP / : L2 protocol Xerox 10Mbps , 100bps 1Gbps

Public Ethernet: H All-Ethernet etro 1 GB1 GBBD 6804BD 6804BD 6804FEBD 6804BD 6804DSLAM FTTH 2-155 MbpsMINI-LINK

?ATU-RATU-RATU-RATU-RATU-RATU-RATM coreATM accessDSLAMBRASISP - 2ISP - 1

IP over DWDM SONET/SDH IP WDM Cisco ONS (series 15000)

130 500 SDH DWDM (155Mbps, 622 Mbps, 2.5Gbps, 10Gbps, 100Gbps). (ADSL) ADSL .

2008 SDH-DWDM 700 Marconi-Ericsson, Siemens Alcatel 10 bandwidth

Ethernet , ,