文档内容
- https://51jobs.taobao.com/ galerjim
1.54Mbit/s 2Mbit/s
2.5Gbit/s
1Mbit/s
2.5Gbit/s
1Mbit/s
3G WCDMA CDMA2000 TD-SSSCCCDDDMMMAAA((( )
OLT ODN ONU
IP IP TCP IP
PC
IP
ITUT SNI UNI
(
1 AF 2 CL
3 TTTPPP 4
TM PDH
SSSDDDHHH
: UPF SPF CF
TTTFFF SMF
HDLC “ ” HDLC
PPP
IP
IPX / / / /
/
PPP 1 IP IP PPP
, MTU . 2 LCP
3 NCP
IP
/ / offer 1- https://51jobs.taobao.com/ galerjim
PPP 1 ISP
2 PC LCP
PPP , PPP 3 NCP PC
IP PC Internet 4 NCP
IP LCP
PPPoE PPP
PPPoE
Frame Relay, FR 1 2
PVC 3 HDLC
IP IPX AppleTalk 4 WAN LAN 5
56Kbps 45Mbps.
ATM (1)ATM 53
(((222)))
(3)ATM (((444)))AAATTTMMM
ATM
VPN
11 PPPPPPPPP 2
L2TP IIIPPPSSSeeeccc 3
IP AAATTTMMM
PPPPPPTTTPPP L2F LLL222TTTPPP
GRE IIPPSSeecc MMPPLLSS VVPPNN
L2TP
PPTP L2TP 1 PPTP IIPP L2TP IP
X.25 AAATTTMMM 2 PPPPPPTTTPPP L2TP
L2TP
3 LLL222TTTPPP 444 PPTP 6 4
L2TP PPPPPPTTTPPP IIIPPPSSSeeeccc
IPSec EESSPP AH IKE
GRE VPN GRE IP
IP GGGEEERRR
IETF 1996 RTP
RTP RTCP.
RSVP
RSVP
QoS
RSVP
: HTTP/TCP RTP/UDP
/ / offer 2- https://51jobs.taobao.com/ galerjim
---------
1 Web Web
HTTP/TCP 2 Web A/V
Helper HTTP Web A/V Helper A/V
Helper A/V Server RTSP A/V
RTSP Real Time Streaming Protocol
3 A/V Server RTP/UDP A/V A/V Player A/V
A/V
111 2
3
2B1Q: 2 444
2B1Q 222
2B1Q (((111))) 222BBB111QQQ 000 339922kkHHzz
392K (((222))) 222BBB111QQQ
QAM
DMT “““ ” “ ” “ ”
CAP / QAM
QAM
CAP QAM
CAP :1 / m k =2m
2
, . 8 8
4bit 3 D/A
HDSL 2 3
PDH T1
1.544Mbit/s E1 2.048Mbit/s
HDSL
/ / offer 3- https://51jobs.taobao.com/ galerjim
HDSL
HDSL 2B1Q 2 1 CAP
HDSL2
1 PAM 2 CAP :
ADSL 1 ADSL
ADSL
2 ADSL
ADSL 3
VDSL 1 VDSL DSL 2
VDSL 3 AAADDDSSSLLL VVVDDDSSSLLL
1 4 VDSL :
26Mbit/s, 13Mbit/s 555222MMM///666...444MMM 26M/3.2M 111333MMM///111...666MMMbbbiiittt///sss
VDSL POTS
VDSL
ADSL2
ADSL2+ ADSL/ADSL2
DDDSSSLLLAAAMMM xDSL
DSLAM
ADSL ADSL / ADSL Modem
/ / offer 4- https://51jobs.taobao.com/ galerjim
ADSL
HFC FE HDT
NIU ISU
HFC 3
Cable Modem
Cable Modem
CableModem 64QAM( ) 27Mbit/s
256QAM 36Mbit/s QPSK
CableModem 1 CableMMooddeemm
222 CCCaaabbbllleeeMMMooodddeeemmm
3 IIIPPP ::: CCCaaabbbllleeeMMMooodddeeemmm DDDHHHCCCPPP
IP 4 CCCaaabbbllleeeModem
HFC
HFC CCCaaabbbllleee MMMooodddeeemmm
1. PPPPPOOOOONNNNN,,,,,AAAAAOOOOONNNNN,,,,,OOOOOLLLLLTTTTT,,,,,OOOOODDDDDNNNNN,,,,,OOOOONNNNNUUUUU
AAOONN PON OLT ODN ONU
2.OOOLLLTTT,,,OOODDDNNN,,,OOONNNUUU OLT
ODN
OONNUU / /
3.
OLT
ODN
ONU / /
AF
4.PON
OLT ODN ONU
5.PON
OLT ONU OTDM
/ / offer 5- https://51jobs.taobao.com/ galerjim
ONU ONU
ONU OLT
OTDMA OWDMA OSCMA
6.PON
OWDM
OTDM
OSDM
OSCM ONU
7.PON
ONU ODN OAN
OLT OODDNN
ODN OAN ONU
OLT
8. ONU OAN FFFTTTTTTHHH
FTTO FFFTTTTTTBBB FFFTTTTTTCCC
9. PON
1310nm/1550nm
10.APON
APON 1 SSSDDDHHH 2
ATM 3 SSTTMM ATM 4
ATM PPPOOONNN 44 111 OOOLLLTTT 2 3
ONU 4
11.APON
11331100nnmm
1550nm
12.APON 111 :
2 333
13.EPON
PON APON 111 2 3 4
EPON APON TDM TDMA
FTTB FTTC
EPON PON 100~1000Mbit/s PON
100~1000Mbit/s
14.EPON
ONU
TDMA ONU
15.EPON
2 EPON
1510nm
/ / offer 6- https://51jobs.taobao.com/ galerjim
1310nm
3 EPON
1510nm
1550nm CATV
1310nm
16.GPON
GPON
155M 2.5G 1.25G 2.5G
GPON 125us 8
GPON TC
TC ATM GPON
GPON Port ID Port ID ONU OLT
18.AON
AON 4 1 OLT 22 OODDTT
HUB 33 OOONNNUUU 4
1
PDH SDH 2
1.
1 2 333 4
WWLLAANN FBWA
MMMBBBWWWAAA
MMMAAACCC QQQoooSSS
2. LMDDDSSS MMDS
LMDS 222888GGGHHHzzz 1G
666444KKKbbbiiittt///sss~~~111555555MMMbbbiiittt///sss
MMDS
IIInnnttteeerrrnnneeettt
3.LMDS
ATM IP IP Over ATM
LMDS PSTN ISDN
4.
1 STA AP AP Radius
AAA Server
2 AAA Server AAA Server AAA
/ / offer 7- https://51jobs.taobao.com/ galerjim
Server AAA Server
3
4 AAA Server AAA Server
AAA Server
6.
1 DSSS 2 PBCC 3
OFDM 4 MIMO OFDM
7. MAC CMSA/CA BTMA
8. IP
IP IP IP
IP
IP FA
FA FFFAAA
FA HA
HA
9.IEEE802.11e QoS
1 888
2
10. WLAN
WWWLLLAAANNN 2.4G 555
AAAPPP IIIEEEEEEEEE888000222...111111aaa IIIEEEEEEEEE888000222...111111bbb
11.IEEE802.16 WWWiiiMMMAAAXXX
IEEE802.16
WiMax 802.16
12.2~11G WWMMAANN__SSCCaa WMAN_OFDM
WMMMAAANNN___OOOFFFDDDMMMAAA
13.IEEEEEEEEE888000222...222000
:1 225500kkmm//hh 222 16Mbit/s
IIIEEEEEEEEE888000222...222000
14.IEEE802.20 IIIEEEEEEEEE888000222...111111 IEEE802.16
IEEE 802.11 IIIEEEEEEEEE 888000222...111666
IEEE 802.20
IEEE 802.11 IEEE 802.16
IEEE 802.20
15
1.
/ / offer 8- https://51jobs.taobao.com/ galerjim
PLC
2. 2
3 4
3.
4.
IP
1.
2.
3. 11 2
333
4.
SDH SWDM
5.10G
111000GGG,,, 999...555888444666444GGG
6.RPR RPR , IEEE802.17
7.RPR
RPR
50ms
COS
8.SDH DWDM
SDH ITU-T SDH
DWDM
9.MPLS
Tag Switching .
/ / offer 9- https://51jobs.taobao.com/ galerjim
10.MPLS
MPLS
LER
LSP LSP
MPLS LSP LSP
11. VLAN
VLAN
VLAN MAC VLAN IP VLAN
MAC IP
VLAN
12.
EPON
CWDM
13.PKI
PKI
/ / offer 10
