optical fiber resources in the man are getting increasingly tight, so as to meet the customer's activation requirements as soon as possible and seize market share.
Now, based on the geographical location of new customers and the features of activated services, a communication company is building a man in the sandarea area of Chongqing, in light of the shortage of optical fiber resources in the local network, the corresponding emergency solutions for optical fiber configuration are used as examp
With the gradual application of smart optical network ASON, the transmission network will gradually increase the number of intelligent network elements. As operators have invested heavily in the traditional SDH network, in order to protect the original investment and realize the smooth evolution of the traditional optical transmission network to ASON, the intelligent network and traditional devices will coexist for a long time, the interoperability be
With the rapid growth of data, video, and mobile communication services, large-particle businesses surge. Traditional SDH systems cannot meet the demand for rapid growth of large-particle businesses, however, the wavelength division network is the most cost-effective transmission network for bit transmission. It has advantages unmatched by other technologies in large-particle bandwidth transmission solutions. Due to the characteristics of data service
features such as multi-link binding and nested LSP. The advantage of GMPLS is that it can provide cross-network traffic engineering, business recovery and protection integration, and rapid business deployment.
The bandwidth of the transmission network increases with the increase of user requirements. More and more DWDM devices and optical switching devices will be deployed on the core network, the original SDH, IP, and ATM devices will be migrated to
provides service and fault isolation, added new features such as multi-link binding and nested LSP. The advantage of GMPLS is that it can provide cross-network traffic engineering, business recovery and protection integration, and rapid business deployment.
The bandwidth of the transmission network increases with the increase of user requirements. More and more DWDM devices and optical switching devices will be deployed on the core network, the original SDH
used. If lstp is located in the Settlement Board, the third-level clock should be used.The impact Grounding Resistance of the anti-lightning grounding device of telecommunication buildings should not exceed. Cables and metal pipes outside the building should be grounded before entering the building. lightning arresters should be added at the entrance when the cables and metal pipes outside the building are directly introduced into the room.The switch data center must meet the national second-le
time slots in the 155M must be known (63 2 MB of 155M ), you must also specify the position of the 155M in the 10g (10g Includes 64 155 M). In this way, you can configure a cross-connection when the first 155M gap of 2 Mb is specified in the inbound/outbound nodes. It can be seen that when the number of nodes passing through the circuit is large, the configuration is very complex and time-consuming, and it is not conducive to unified planning and network optimization.
Alarm Analysis and fault m
MPLS (Multi-Protocol Label Switching) is an efficient IP backbone network technology platform. It provides a flexible and scalable backbone network switching technology for the next generation of IP networks. The use of MPLS technology will greatly improve network operation efficiency, achieve QoS division for IP network services, and rationally allocate network resources through traffic engineering to implement restricted routing, MPLS networks also provide efficient VPN services and real-ti
A few days ago, a DB Link between one Oracle database and another ORALCE database was created to insert data from one server into another machine, due to job requirements.
Oracle Server A:SID:SDH, USERID/PW:NM/NM
Oracle Server B:SID;GSGX, USERID/PW:GS/GS establishes the following DB Link:
Create a DB Link from B to a:
Create DATABASE link TestDB connect to nm identified by nm using ' SDH ';
DB Link was created successfully, select is correct, but
Installation
Mkdir/usr/local/nmon
Cd/usr/local/nmon
wget http://sourceforge.net/projects/nmon/files/nmon_linux_ 14i.tar.gz
tar zxvf nmon_linux_14i.tar.gz
chmod 777 NMON_X86_64_SLES11
Start
./nmon_x86_64_sles11
Description
Press C to display CPU information, and then press C to close
Show memory by M
Show Network by n
Press D to display the hard drive
Generate Nmon Report
./nmon_x86_64_sles11-s10-c60-f-m/usr/local
Parameter explanation:-S10 data is collected every 10 seconds.-c60 col
designers using Adobe's Dreamweaver CS4, you can select whatever you want to test with a tool authorization and get a bug test report.
Contrast Analyser: It's not easy to choose the right color for your Web site, and you have to make sure that the colors are properly matched to make it easy to read. Colour Contrast analyser allows you to distinguish between the two colors, and to set up easy to read sit
applications. But given the potential risk of the--10% app we found in the analysis, 50% of risky apps are being tested on the ground-and there are a lot of vulnerable devices. Also, don't forget that 57% of Android devices are running on versions below 4.2. So even if tomorrow all the vulnerable apps and frameworks are patched on a 4.2 patch, more than half of Android devices will not be able to fix the vulnerability. Once you've implemented remote code execution, it's not much of a leap forwa
standard output format (hostname_yyyymmdd_hhmm.nmon)
-M address: the storage location of the monitoring file generated by-f.
(In the process of nmon monitoring, if you need to manually stop data collection, you can first find the process ID, and then kill: PS-Ef | grep nmon (find the nmon process ID ), kill-9 ID (ID value)
3. Generate chart analysis data
After data collection is complete, generate and analyze data images in the nmon analyser tool.
Op
Origin
The online version of Tomcat is upgraded to 7.0.52, And the JVM FullGC frequency conversion of some applications is complicated. During the peak period, the number of socket connections and Cpu usage increase dramatically.Ideas
The idea is that the Tomcat code should be correct. The problem may be that the application code is upgraded, or the environment is changed. In short, the priority of Tomcat is at the end.
First, the application's heap dump is analyzed as follows:
Jmap-dump: format
Draws all data from the parser array. The contents of this article, to undertake the above1.800 width DrawingvarUrl= '. /content/audio/. mp3 ';if(!window. Audiocontext) {alert (' Your browser does not support Audiocontext ');} Else { //Create Context varATX =NewAudiocontext (); varSource =NULL; //using AJAX to get audio files varRequest =NewXMLHttpRequest (); Request.open (' GET ', url,true); Request.responsetype= ' Arraybuffer ';//return type of configuration data //Load CompleteReq
Audiocontext ', e); };2. Get Microphone Data// start listening . if (Navigator.getusermedia) { console.log (' browser support Getusermedia '); = "Checked"; Navigator.getusermedia ( // We only get the microphone data, you can also set video to True to get the camera data { true }, Else { console.log (' browser does not support Getusermedia ') ; = "false";};Through onsccess to get data, interventional analysis// Success Callback function Onscces
Installation of Nmon:1. Create a new directory Nmon:mkdir-p/home/tool/nmon2. Get the Nmon installation package:Http://nmon.sourceforge.net/pmwiki.php?n=Site.DownloadNeed to choose according to needs, I use the CentOS, so choose this installation package:3. Upload the tar package to the Linux Nmon directory via SFTP4. Unzip the TAR package in Linux: TAR-ZXVF nmon16e_mgpinc.tar-gz5. Modify the permissions of the NMON_X86_64_CENTOS7: chmod u+x Nmon_x86_64_centos76. Create a soft link: ln-s/home/too
run):Apt-get Install Lsb-releaselsb_release-d | Sed ' s/description:\t//' >/etc/debian_releaseThen directly run Nmon, directly run Nmon can monitor the use of system resources in real-time, perform the following steps to show a period of time system resource consumption report.Here is the direct execution of the Nmon command to monitor the system resource consumption in real time:CPU, memory, disk, and network consumption are all visually displayed.Three. Generate the Nmon report.1). Collect Da
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