catalyst 4900

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REFORM-3PC.V7.0

REFORM-3PC.V7.0FRNC-5PC.V8.0 General Heating Furnace Process Calculation Software REFORM-3PC hydrocarbon steam Conversion Furnace section Rating Program steam hydrocarbon reforming simulation program REFORM-3PC is a rating program for the firebox sections of steam-hydrocarbon reformer furnaces, which areUsed in hydrogen, ammonia and oxo-alcohol production. Based on user-supplied furnace geometry and ProcessInformation, the program calculates operating parameters such as firing rate, furnace effi

The classic "Cisco Lan Switching" chapter sixth (iii): Double Key spanning-tree Protocol Concepts

"Copyright notice: Original translation articles, translation level is limited, errors are unavoidable, The Translator is not responsible for the consequences of errors or omissions in the article, please be careful to reprint them. Reproduced please retain this statement and source: blog.csdn.net/shallnet, download the English version of the book "Spanning tree is widely used in the production of a loop-free network topology using two concepts: Bridge ID (BID) Path overhead Th

Cisco (Cisco) switches? C3750-e? 6. Upgrading the ISO

"Introduction" Cisco switch Catalyst 3750-e Series production in 2007, the original system is very old, in order to let it out of the spring, we can upgrade its system. Pre-upgrade preparationFirst we need a new version of the Catalyst 3750-e Series Cisco switch ISO file, online searchable to many, here we recommend a 2015-year version of the download link is:Cisco switch

Ubuntu Graphics driver Installation

1. View the computer graphics modelCommand:lspci | grep VGAYou can see the corresponding two video card models2. Download the corresponding graphics driver from the video card websiteBecause this video card is ATI graphics card, installed system is 32-bit Ubuntu, to the ATI official website to download the corresponding graphics driver.3. Install the driverYou can see the download is a ZIP package, using the Upzip command to extract it:unzip Amd-driver-installer-

Go ASP. NET MVC spring.net NHibernate Integration

Please specify the reprint address: Http://www.cnblogs.com/arhatBefore the integration of these three technologies, first of all to explain the integration of the steps, as the saying goes, Khan to eat a mouthful, things to do one thing. The same is true of the three technologies. Before you integrate, you need toAsp.net,spring.net,nhibernate have some knowledge, it is best to have some experience, because for no reason to put 3 technology together, will make small awkward, in fact, like the con

"Work sentiment"-employees because of the company to join, but because of middle management and leave _ work

gymnastics.Third, excellent superiors.A good supervisor is actually like a catalyst, it is not internal but it is an important driving force.Athletes are the same, in addition to the talent, can match, but also need to have a good coach, dig him, cultivate him.So a good superior leader is an important driving factor, so we call him "catalyst".The biggest impact on a person, the greatest impact on a team of

PHP generates a two-dimensional code image with logo

= Imagesy ($QR);$logo _width = Imagesx ($logo);$logo _height = Imagesy ($logo);$logo _qr_width = $QR _width/5;$scale = $logo _width/$logo _qr_width;$logo _qr_height = $logo _height/$scale;$from _width = ($QR _width-$logo _qr_width)/2;Imagecopyresampled ($QR, $logo, $from _width, $from _width, 0, 0, $logo _qr_width, $logo _qr_height, $logo _width, $logo _ height);}Header (' content-type:image/png ');Imagepng ($QR);Imagedestroy ($QR); Finally share some common two-dimensional code gener

2016 nine major front-end essential animation library

: MIT  6.hover.css Created by: Ian Lunn Release Date: 2014 Latest Version: 2.0.2 Focus on popularity: There are 10700+ on the GitHub. Introduction Description: The mouse hover effect quickly applied to your Web page elements or creative design. File size:: 104.2 KB. GitHub Home: Https://github.com/IanLunn/Hover Copyright License: MIT  7. Velocity.js Created by: Julian Shapiro Release Date: 2014 Latest Version: 1.2.2 Focus on popularity: There are 8700+ on th

A case in Oracle to improve SQL performance by adding a local partitioning index

| PX Coordinator | | | | | | | | 2 | PX SEND QC (RANDOM) | : TQ10002 | 1 | 159 | 8654 | | | | 3 | SORT UNIQUE | | 1 | 159 | 8654 | | | | 4 | PX RECEIVE | | 1 | 36 | 3 | | || 5 | PX SEND HASH | : TQ10001 | 1 | 36 | 3 | | | |* 6 | TABLE ACCESS by loca

PHP two-dimensional array sorting function

A PHP one-dimensional array can be sorted with functions such as sort (), Asort (), Arsort (), but the ordering of PHP's two-dimensional arrays needs to be customized.The following function is to sort a given two-dimensional array according to the specified key value, and first look at the function definition:functionArray_sort ($arr,$keys,$type= ' ASC '){ $keysvalue=$new _array=Array(); foreach($arr as $k=$v){ $keysvalue[$k] =$v[$keys]; } if($type= = ' ASC '){ Asort($keysv

A collection of PHP array sorting functions and their relationship analysis _php techniques

(' name ' => ' cell phone ', ' brand ' => ' Nokia ', ' Price ' =>1050), Array (' name ' => ' laptop ', ' brand ' => ' Lenovo ', ' Price ' =>4300), Array (' name ' => ' Razor ', ' Brand ' => ' Philips ', ' Price ' =>3100), Array (' name ' => ' treadmill ', ' brand ' => ' three and pine stone ', ' price ' =>4900), Array (' name ' => ' watch ', ' brand ' => ' Casio ', ' Price ' =>960), Array (' name ' => ' LCD tv ', ' Brand ' => ' Sony ', ' Pr

The VBS script for the masking port _vbs

Copy Code code as follows: ' On Error Resume Next Const Allow_all = 0 Port = Array ("4900", "5000", "5100", "5500", "5600", "6000", "7000", "7100", "7200", "7300", "7400", "3389", "80") StrComputer = "." Set objWMIService = GetObject ("winmgmts:\\" StrComputer "\root\cimv2") Set Colnetcards = objWMIService.ExecQuery _ ("SELECT * from Win32_NetworkAdapterConfiguration Where ipenabled = True") For each objnetcard in Colnetcards

Manipulating XML data with VisualBasic

a slash in the back of the start tag, in the following example, the number property of the phone tag stores a phone call, so you don't need an end tag: The structure of an XML document is a hierarchical structure of trees. The document must have a unique root node that contains all the other nodes. Here is a more complete example: Andy Fickle 1234 Programmer Place Bugsville

Digital currency bottom-up compilation in Casper Blockchain development application

lose 4900 points. It is important to note that since this function of the Casper contract is executed as part of the state transfer function, the execution process is completely clear as to what each chunk and state root node is, at least in its own world. Even from the outside world, the verifier of the No. 20125 block to propose and vote does not know whether the No. 20123 block will be finalized, but when the verifier has processed the block, they

Common VLAN attack Parsing

trunk protcol) on all untrusted ports (untrusted ports) to "off" to prevent such attacks. Software and Hardware running on Cisco Catalyst 2950, Catalyst 3550, and Catalyst 4000 series switches can also implement appropriate traffic classification and isolation on all ports. VLAN attack 2. Dual-encapsulation 802.1Q/nested VLAN attack Inside a vswitch, VLAN number

Software Configuration for vswitch Configuration

After the physical connection is complete, we need to turn on the computer and switch power for software configuration. Next we will describe this configuration process with a Cisco netmanager switch "Catalyst 1900. Before entering the configuration, we also need to enter the system. The steps are as follows:Step 2: power on the computer connected to the vswitch and run one of Windows 95, Windows 98, or Windows 1st.Step 2: Check whether the "Super Ter

Smart switch products and key points of purchase

SuperStack 3 Switch 4400 and other Gigabit Ethernet Switching Products, 3Com provides users with a complete set of advanced enterprise-level LAN Solutions. Cisco Catalyst 3550 features The Cisco Catalyst 3550 smart Ethernet switch is a stackable multi-layer switch product that improves network health through high availability, quality of service (QoS), and security. With a series of Fast Ethernet and Gigab

Two methods for communication between different VLANs (single-arm routing and layer-3 Switching)

Two methods for communication between different VLANs (single-arm routing and layer-3 Switching)Test environment: Third data center, second floor, east suburbInvestigational device: Catalyst 2950-24 (SW3)Cisco 2611 (R2)Catalyst 3750 SERIES (with two SD interfaces, S8----SW-2L)Real machine (PC5, PC6 ).Objective::1. Communication between different VLANs through single-arm Routing2. implement communication bet

How to Use layer-3 Exchange to ensure data security

Layer-3 switches are quite common, So I studied how to use layer-3 switches to ensure data security. I would like to share with you here, hoping they will be useful to you. The backbone network topology of Jiangxi sanjiu yigong Co., Ltd. is multi-level star Gigabit Ethernet. A high-performance switch Cisco Catalyst 4006 with multiple 1-gigabit ports and 10-Gigabit ports is placed in the center of the science and technology building as the core switch

See how layer-3 switches ensure Network Security

Layer-3 switches are quite common, So I studied how layer-3 switches can ensure network security. Here I will share with you, hoping to help you. A high-performance switch Cisco Catalyst 4006 with multiple 1-gigabit ports and 10-Gigabit ports is placed in the center of the science and technology building as the core switch of the backbone network. The company's master server and high-performance workstation use the Gigabit switching port of the centra

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