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EPON Testing Technology (1)

in the transmission of triple playback services: ◆ A large amount of downstream bandwidth is wasted: the EPON system uses a broadcast transfer method in the downstream mode: Each ONU will receive a large amount of traffic sent to other ONU, wasting a lot of downstream bandwidth. ◆ Large uplink latency: when sending data to the OLT, The ONU must wait for the transfer opportunity allocated by the OLT. Therefore, the ONU must cache a large amount of upstream traffic, this results in latency, jitte

Test the layer-3 Switch

a layer-3 test. Take the outstanding layer-3 Switch DGS3308TG of Digital China D-Link as an example. We connect the eight Gigabit ports of the vswitch with the eight Gigabit ports on the IXIA1600 tester. We configure the layer-3 Switch DGS3308TG, set the eight ports to eight different VLANs, and then set IP addresses for each VLAN. Then we configure the eight ports of IXIA, set their IP addresses to the IP subnet of the connected port, and then start

How to select a layer-3 Switch

analyze the performance indicators of various products. However, for example, switching capacity Gbps) and Board bandwidth Gbps), processing capability Mpps), throughput Mpps) and many other technical indicators, you 'd better grasp the "throughput when the configuration is full", because other technical indicators users are generally unable to measure, only throughput is an indicator that users can use Smart Bits and IXIA testing instruments for dir

Firewall Network Performance test-(1) Download and installation of test software Ixchariot 6.7

 Ixchariot IntroductionIxia's application layer performance testing software Ixchariot is a unique testing tool and is an industry-proven test system for application-level performance testing. Ixchariot can evaluate the performance and capacity of network applications, stress test the network and equipment, and get the performance parameters such as throughput, delay, packet loss, reaction time and so on for different applications and different parameters of the equipment and network. As a test

Several performance testing tools

alternative to Spiren T Avalanche and IXIA IxLoad.The tool is useful-performance loading of various application services, for testing Web and FTP servers and traffic GE Neration. Activities of each virtual client is logged and collected statistics includes information about resolving, connection EST Ablishment, sending of requests, receiving responses, headers and data received/sent, errors from Network, TLS/SSL and app Lication (HTTP, FTP) level eve

SDN Technology Conference: Why did the global manufacturers gather in Beijing in May?

2015 5 month 18 Day -19 Day, " 2015 Global Future Network and Technology conference will be held in Beijing. It is reported that Huawei, ZTE, China Three communications, Cisco, intel , freescale , , Ruijie, ixia , think Bollen, netronome , windriver and other top dozens of global manufacturers will appear on the scene of the conference, sdn , NFV and other future network technology development status and enterprise strategic deployment presenta

How to select a layer-3 Switch

layer-2 switching, and the price is relatively low. Since there are many features and the price is low, it should be favored by enterprise users. How should we select switches? How to select a vswitch: (1) Selecting trusted technical indicators: Like any electronic product, when selecting a layer-3 switch, we should first analyze the performance indicators of various products. However, for example, switching capacity Gbps) and Board bandwidth Gbps), processing capability Mpps), throughput Mpps)

Implement a data bar graph in a asp.net page

graph:int ibarwidth = 40;int scale = 10;for (int i = 0; i {G. DrawRectangle (Pens.black, (i * ibarwidth) +-(Ixiaosh [i] * scale), (Ixiaosh [i] * scale) + 5 ) ;Draw bar GraphG. FillRectangle (New SolidBrush (GetColor (i)), (i * ibarwidth) +, (Ixiaosh [i] * scale), (IXia OSH [i] * scale) + 5);Fills the bar graph with the specified colorG. DrawString (Ixiaosh [i]. ToString (), New Font ("Song Body", 9), brushes. Black, (i * ibarwidth) +, 235-(Ixiaosh [i

The underlying algorithm records--by maximal subsequence and thought

one.int MaxSum1 (vector{int nsum = 0;if (v.size () > 0){for (int i =0; i{int vsum = 0;for (int j=i; j{for (int k =i; kVSUM+=V[K];if (nsum{nfrom = i, nTo = j;Nsum = Vsum;}}}}Elsereturn 0;return nsum;}The following is a further analysis of the time complexity of the above enumeration method, very simple 3 for loop, T (N) =o (n^3). Here to say a few more, generally our first written out of the program, if it is this complexity, then please note that thi

MS SQL data Type comparison

and2.23e-308~1.79e+308a positive number. The storage space is determined by the precision value,Nto be1~24, Occupy4bytesstorage space;Nto be25~53, Occupy8bytesstorage space. RealThis data type stores-3.40e+38~-1.18e-38the negative and1.18e~3.40e+38a positive number. Occupy4bytesstorage space. SmallMoneyThis data type stores-214748.3648~214748.3647the value of the currency, exactly after the decimal4bit. Oc

[Python] Use smtp and pop to send and receive emails

]Send: 'ehlo [169.254.114.107] \ r \ N'Reply: '2017 -smtp.qq.com \ r \ N'Reply: '2017-PIPELINING \ r \ N'Reply: '2017-SIZE 250 \ r \ N'Reply: '2017-auth login plain \ r \ N'Reply: '2017-AUTH = LOGIN \ r \ N'Reply: '2017-MAILCOMPRESS \ r \ N'Reply: '2017 8BITMIME \ r \ N'Reply: retcode (250); Msg: smtp.qq.comPIPELININGSIZE 52428800AUTH LOGIN PLAINAUTH = LOGINMAILCOMPRESS8 BITMIME250Send: 'auth PLAIN ADg0NzkxNTA0OQA0OTMzODQ4MTIzNA ==\ r \ N'Reply: '235 Authentication successful \ r \ N'Reply: retc

Coreseek Adding an incremental index cannot take effect, what's going on?

change, but there are only two or three, and I wonder why?) ) Configuration file: #MySQL数据源配置, for more information, see: http://www.coreseek.cn/products-install/mysql/#请先将var/test/ Documents.sql Import the database and configure the following MySQL user password database # source definition mysql{type = mysql Sql_host = Lo Calhost Sql_user = root Sql_pass = root sql_db = Mall Sql_por t = 3306 sql_query_pre = SET NAMES UTF8 #插入文章表的最大id sql_query_pre = REPLACE I

Comparison of several methods of saving matrix in matlab

In recent projects, you need to use MATLAB's excellent matrix computing capabilities, and then save the matrix to a file for use by programs in other languages. This requires that the matrix be saved as a file format, not a mat form. Here are the main uses of three methods: by Muzi Xiao Son1. Dlmwrite: Write ASCII-encoded delimited matrix.function dlmwrite (filename, M, varargin)%dlmwrite Write ASCII delimited file.%% dlmwrite (' filename ', m) writes Matrix M i

Big Data processing algorithm three: divide and conquer/hash map + hash Statistics + heap/quick/merge sort

exceed 1G. First step borrowingHashPre-processing of this batch of massive data: first(Maintain aKeyto beQueryString,Valuefor theQuerythe number of occurrences, i.e.Hashmap (Query,Value), each time you read aQueryif the string is notTable, the string is added, and theValuevalue is set to1, if the string is in theTable, add a count of the string. In the end weO (N)(Nto be1Be sure to iterate through the entire array once and for each of the statistics

db Too big? One button to help you shrink all db file sizes (Shrink files for all Databases in SQL Server)

operation; All DB files, including data files and log files, are shrunk (Shrink database data files Shrink database log file); The user executing the SQL script needs to have the dbo permissions of the sysadmin or the associated database. The script is as follows: 1--Created by Bob from HTTP://WWW.CNBLOGS.COM/LAVENDER000/2 use master 3 DECLARE dbcursor CURSOR for select name fro m [Master]. [SYS]. [databases] where state = 0 and is_in_standby = 0; 4 DECLARE @dbname NVARCHAR (25

How to implement Python read-write TXT file json file _python

: For lines in Fp.readlines (): After python2.3, because of the introduction of iterators and file iterations (i.e., file objects becoming their own iterators), The above example has a more efficient way of implementing it: fp = open (' C:\Users\MPC\Desktop\ . txt ') for line in FP: ... Fp.close () It is recommended to use this method! 2. Output Functions: Write (), Writelines () Output a string/list to a file Write (): output string to File >>>f= open (' Test.txt ',

Supporting Python 3 (Support Python3)--Migration strategy

code in your package. Distributing Packages also have information on this.However, the lazy coders approach here would is to use distribute, as it includes some extensions to the 2to3-story.Using distribute to support the 2TO3 conversionDISTRIBUTE[1] is a fork of Phillip J. Eby ' s popular setuptools package and provides Python 3 compatibility, as well as ext Ensions simplifying the support for Python 2 and Python 3 from the same source. Basically what distribute have done are to extend the pri

SQL * Plus copy command to process Mass Data Replication

symbol, used for line feed writing scott @ SYBO2SZ> copy from scott/tiger @ sybo2sz-> create tb_emp-> using select * from emp; Array fetch/bind size is 2000. (arraysize is 2000) Will commit when done. (copycommit is 0) Maximum long size is 5000. (long is 5000) Table TB_EMP created. 14 rows selected from scott @ sybo2sz. 14 rows inserted into TB_EMP. 14 rows committed I Nto TB_EMP at default host connection. -- append method. Only the to clause scott

Multiple HTML insertion vulnerabilities in the IlohaMail 'bookmark' Module

"###################################### ######### \ r \ n" # SETTINGS Sender = "attacker @ localhost"Smtp_login = senderSmtp_password = "qwe123"Recipient = "victim @ localhost"Smtp_server = "192.168.1.10"Smtp_port = 25Subject = "IlohaMail Webmail xss poc" # SEND E-MAIL Print "[*] Sending E-mail to" + recipient + "..."Msg = ("From: % s \ r \ nTo: % s \ r \ nSubject: % s \ n"% (Sender, ",". join (recipient), subject ))Msg + = "Content-type: text/html \

RoundCube Webmail 'href 'body HTML Injection Vulnerability

to the victim with the payload in the email body, Once the user clicks on the url the XSS shocould be triggered. 2. Self XSS in e-mail body (Signature ). XSS Payload: "> In order to trigger this XSS you shoshould insert the payload into your signature. Settings-> Identities-> Your Identitiy-> SignatureNow create a new mail, XSS shoshould be triggered. ''' Import smtplib Print "###################################### #########"Print "# Roundcube 0.8.0 Stored xss poc #"Print "# Coded by: Shai rod

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