stp autocad

The current popular development of AutoCAD tools, one is Objectarx, and the other is AutoCAD with VBA (AutoCAD built-in Visual Lisp was also counted as a, but it can only develop a few small programs, so it can not be compared with the previous two tools). But both have obvious deficiencies, to VC + + based on the development of the function of Objectarx is very

If each port on a vswitch has a host. So without listening and learning, it is easy to cause a broadcast storm. The Spanning Tree Protocol STP is generated to solve such problems. How the Spanning Tree works: The international standard for Spanning Tree Protocol is 802.1b. the Network Bridge/switch that runs the Spanning Tree Algorithm communicates configuration information with other switches through the Network Bridge Protocol Data Unit BPDU withi

An improper port connection between switches in the Ethernet may cause a network loop. If the related switch does not enable the STP function, this loop will lead to endless repeated packet forwarding, forming a broadcast storm, this causes network faults. One day, we found a problem with a VLAN in the campus network performance monitoring platform-the connection between the access switch and the campus network was interrupted. Check the aggregation s

Content: 1. portfast fast Port 2. bpduguard BPDU Protection 3. bpdufilter BPDU Filter 4. rootguard root Protection Can be configured globally or in the interface, with slightly different 1. portfast fast port: can be configured globally or under an Interface Features:EnableStandard 802.1d does not pass through lsn, LRNDirect to forwarding status 2. bpduguard BPDU Protection Features:GlobalThe command is for the terminal of the portfast interface. Normally, the Peer (PC or router) of the portfa

LabSTP The lab objectives are to configure STP on two or three switches,Set switch1Vlan1Switch2Vlan1SwitVlan2The next root bridge, switch2Vlan2The root bridge Lab Environment 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/46/3E/wKiom1PwkPGQdXxOAAC8xoZ18gQ183.jpg "Title =" image001.png "alt =" wkiom1pwkpgqdxxoaac8xoz18gq183.jpg "/> Tutorial steps: 1. Set vlan1 as the root bridge 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02

The following is an article from H3C, which was reorganized to facilitate the study.STP Spanning Tree ProtocolIs easy to understand. You can download the instructions in another article:Analysis of STP Spanning Tree Protocol principles and Algorithms. The following articles are extracted from this document, because it is too long to extract only a part. Reprinted Please note: http://blog.csdn.net/shanzhizi Analyze it nowSTPAlgorithmTheoretically speak

1. Root Guard Parsing650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/78/66/wKiom1Z7j2GDyloyAAA90C66iSg126.png "title=" s7.png "alt=" Wkiom1z7j2gdyloyaaa90c66isg126.png "/>To protect the stability of the spanningtree, root guard configures the root bridge to specify the port or switch to the non-switch port, and when a better BPDU is received on the interface configured with root guard, the interface is blocked into the broken state. When not received more BPDUs are automatically recov

3228 the port fei_1/1 and fei_1/2 used in the STP configuration of the vswitch 3228-1 are connected to the vswitch 3228-2 and the vswitch 3228-3 respectively; vswitch 3228-2 uses ports fei_1/3 and fei_1/4 to connect to vswitch 3228-1 and vswitch 3228-3 respectively. vswitch 3228-3 uses ports fei_1/5 and fei_1/6 to connect to vswitch 3228-1 and vswitch 3228-2 respectively; the vswitch 3228-2 and vswitch 3228-3 respectively use the ports fei_1/7 and fei

"style=" float: none; "title=" 7.jpg "alt=" Wkiom1s31d7wgcs6aachl35fiak640.jpg "/>650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/58/AD/wKioL1S31teSIBDEAACLr7ApGYQ284.jpg "title=" 8.jpg " alt= "Wkiol1s31tesibdeaaclr7apgyq284.jpg"/>The following is the configuration that joins the interface to the VLAN650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/58/B0/wKiom1S31neS8k_OAAGaNSuK67I509.jpg "style=" float: none; "title=" 10.jpg "alt=" Wkiom1s31nes8k_oaagansuk67i509.jpg "/>650

more flexible and effective protocols. Another type of users advocate a combination of two protocols to replace TRILL's core network, and add smaller STP Domains Based on the grid core to reduce the impact of downtime. Reduce network level Finally, let's talk about the three required network layers. Traditionally, we already know the three layers of network design in our minds: Core Layer Distribution layer Access layer These three layers are designe

First, the experimental topology:Second, the experimental requirements:1, PC0 connection SW1, did not make any changes, see if F0/1 need to wait for 30s to become green;2, SW1 Global deployment of the default port Acceleration command, while the f0/2-5 deployed as Acess port;3, PC1~PC4 connection SW1, accelerate, the second into a green port, shorten the 30s, no longer wait.Third, command deployment:SW1 (config) #spanning-tree portfast Default! []SW1 (config) #int range f0/2-5SW1 (Config-if-rang

1.4.1 Start AutoCAD First, we introduce how to enter the graphical interface of AutoCAD. Select the "AutoCAD 2000" package in the operating system "start" menu (WINDOWS95/98 or WindowsNT4.0) and select "AutoCAD 2000", and AutoCAD will display the Startup dialog box as shown

I found that as the last speaker will have some advantages, because we can use more time to give you the most important Autodesk products, namely AutoCAD. It is not too much to say that AutoCAD is the most important product of Autodesk, because its history is as long as that of Autodesk company, since the first version has been developed for 25 years, in other words, there have been 1/4 of centuries of time

I recently did some research on integration of Salesforce and AutoCAD WS. I wrote two articles earlier and published a series of English articles on ADN DevBlog. Post it now. If you are interested, please leave a message for me: Getting started with Salesforce Development Salesforce.com + AutoCAD WS Integration Research part2 Set up development environment and hello world environment Settings, getting star

In this chapter, we will use Visual Studio. NET to create a new class library project. Through this project, you can create a. Net DLL file that can be loaded by AutoCAD. This DLL file will add a new command named "helloworld" to AutoCAD. After you run this command, the "Hello World" text is displayed on the AutoCAD command line.1) create a class library. 2)

As we all know, the main tools used in two development of AutoCAD are: Objectarx,vba,vlisp. But their advantages and disadvantages are obvious: Objectarx powerful, high programming efficiency, but its disadvantage is that programmers must master VC + +, and this language is very difficult to learn; While VBA and Vlisp are easy to start with, they seem powerless to develop large programs. Is there a language that can combine their merits and avoid thei

Using C # For secondary development of AutoCAD (3) (transferred from mingjing channel) The main content of this lecture is to introduce the AutoCAD Object Model. If you understand the development of AutoCAD in VBA, this part of content should be super simple.An object is the main construction block of the AutoCAD Activ

Two development of AutoCAD can be used: Objectarx,vba,vlisp. But instead of borrowing them here, you use C # development directly. There are two ways to class libraries and applications: Method 1:vs2010 Develop AutoCAD 2008 class Library Create a dynamic library, use netload from the AutoCAD command line, and then execute its method Create a project 1, build a

I am engaged in secondary development of AutoCAD. net, and now. net + ObjectARX has formed a perfect combination. Unfortunately, it is currently available in China. net has too few materials for ObjectARX development. I will continue to share my learning experience with you and hope to pay attention to it. Winapi reference: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Public Class Winapi{

The main content of this lecture is to introduce the AutoCAD Object Model. If you understand the development of AutoCAD in VBA, this part of content should be super simple.An object is the main construction block of the AutoCAD ActiveX interface. Each displayed object accurately represents an AutoCAD component. The mai