[电信]北电资料Tips

1、.Open shortest path first (OSPF)Interior gateway protocol (IGP)Gateway network element (GNE)Link Capacity Adjustment scheme (LCAS)Network Equipment Building System (NEBS)European Telecommunications Standards Institute (ETSI)Optical Dedicated Protection Ring (ODPR)Line terminating equipment (LTE) Dis

2、persion-shifted fiber (DSF)Multiwavelength Optical Repeater (MOR)Non-dispersion-shifted fiber (NDSF)Enhanced large effective-area fiber (E-LEAF)Power Optimizer (PO)Push Button Equalization (PBE)Analog Maintenance 2 (AM2) Peak Power Control Loops (PPCL)Optical add/drop multiplexers (OADM)Dispersion-s

3、lope compensation module (DSCM)Optical spectrum analyzer (OSA)Erbium-doped fiber amplifiers (EDFA)Wavelength Translator (WT)Reshapes, re-times and re-amplifies (3R)Forward error correction (single FEC or TriFEC)Single Forward Error Correction (FEC)Triple Forward Error Correction (TriFEC)Optical Dedi

4、cated Protection Ring (ODPR)Optical switch module (OSM).Multiplexer section shared protection ring (MS-SPRing)Sub-network connection protection (SNCP)Distributed Raman amplifier (DRA)Optical signal-to-noise ratio (OSNR)Optical service channel (OSC).DC-based optical reflectometer (DCOR)Stimulated Ram

5、an scattering (SRS)MSA=811dB, 11dB is better.Span Loss is not less than 18dBIQ value between 0.71.0SQ Value shouldnt break 0.5dB between each wavelength channelWT Received optical power should be under -5dBDaulAMP=15.5dBmax.Return loss=3040dB, 40dB is better.Booster18=17.5dB; Booster21=21.5dB.Total

6、optical channel half reduce, then total optical power value minus 3 dB.OPC and HP-UNIX processing:In OPC UNIX shell, to check alarms: lasaldmp aStop any Processing ID: ps ef | grep #, then kill -9 #To check system software and CPU working status: top , to stop it by Ctrl+C To set HP-UNIX parameter:

7、cd /etc, set parms.To find something: find / -name #; find / -size #To check network status: netstat rn for router table; more netconfig for network setup presents; ifconfig lan0 for lan0 setup and status.To check workstation model: modelTo check workstation SW version: uname aTo find disk ID: iosca

8、n fnC diskAbout disk: diskinfo /dev/dsk/c#t#d#; dmesg | grep physical.About software installed checklist: swlist | moreChange password: login as root, then type passwdTo clear OPC critical alarms:1. ps ef | grep usm2. cd /usr/OPCAL/wsm/wsm_reboot3. vi wsm_reboot4. change the value to 05. reboot OPC.

9、 To clear both OPC active or inactive status:1. cd /usr/OPCAL/ows2. more ows_swact.record3. rm ows_swact.record in both OPC.4. reboot both OPC.Swap primary and backup OPC: in root shell type editaddrConfig OPC IP address: /iws/lan/ether_adminTo check active connetion: nnsmon dmore /etc/osihostsAbout

10、 tar: tar cf name.tar /folder/file for compress files in name.tar.tar xf name.tar /folder for release files that compressed in name.tartar t for read the files on the tape.tar tf for read the files details on the press name.tar for create #.z files.uconpress name.tar.z to release #.tar.z fil

11、es.In EC-1 workstation you can delete files under folder /var/adm/crash/*.* to increase working space in hard-disk. For DX100 switch modules, you can equip the 10 Gbit/s or non-10 Gbit/s circuit pack in 10 Gbit/s slots12(G11), 13(G12), 16(G17), or 17(G18). For DX140 switch modules, you can equip 10

12、Gbit/s or non-10 Gbit/scircuit pack in 10 Gbit/s slots 1(G0), 10(G9), 11(G10), 12(G11), 13(G12), 16(G17), 17(G18), or 18(G19).OPC span of control rulesThe OPC span of control (SOC) rules for the OPTera Connect DX Release 6.0 are: You cannot mix SONET and SDH network elements in the same OPC span of

13、control. An OPC span of control can comprise of: A maximum of 24 DX_HUB network elements configured with single 4-Fiber ADM network elements plus additional regenerator network elements, up to a total of 34 network elements A maximum of 24 DX_HUB network elements configured with single 2-Fiber ADM n

14、etwork elements, with no other network elements A maximum of 24 DX_HUB network elements configured with single 10 Gbit/s Linear 1+1 terminals, with no other network elements A maximum of 12 DX_HUB network elements configured with single 2-Fiber ADM and Nx2 Fiber Hub network element (where N is 1 to

15、4), with no other network elements A maximum of 12 DX_HUB network elements configured with single 4-Fiber ADM network elements and 2x4-Fiber Hub network elements, plus additional regenerator network elements, up to a total of 34 network elements A maximum of 12 DX_HUB network elements configured wit

16、h mixed single Linear 1+1 and Nx(1+1) 10 Gbit/s terminals, with no other network elements A maximum of 12 DX_HUB network elements configured with mixed Nx2-Fiber ADM and Linear 10 Gbit/s Mx(1+1) terminal where N+M is 1 to 4, with no other network elements A maximum of 12 DX_HUB network elements conf

17、igured with mixed Mx2-Fiber ADM and 1x4-Fiber ADM 10 Gbit/s terminals, where M is 1 to 2, with no other network elements A maximum of 12 DX_HUB network elements configured with mixed 1x4-Fiber ADM and Linear 10 Gbit/s Mx(1+1) terminals where M is 1 to 2, with no other network elements A maximum of 8

18、 DX_HUB network elements configured with mixed unprotected 10G facilities (0:1) and Nx2-Fiber Ring ADM where N is 1 to 3, with no other network elements A maximum of 8 DX_HUB network elements configured with mixed unprotected 10G facilities (0:1) and 1x4-Fiber ADM, with no other network elements A maximum of 8 DX_HUB network elements configured with mixed unprotected 10G facilities (0:1) and Linear