stp autocad

STP (Spanning tree Protocol) Spanning Tree protocol: Changing a ring network structure into a tree structure1. Logically disconnect the loop to prevent the broadcast storm from producing2. When the line fails, the blocking interface is activated, resuming communication, and the role of the backup line3. When there are multiple VLANs in the network, load balancing can be achieved through the application of STP650) this.width=650; "id=" image_operate_86

configuring a VTP password for the SW2 switch in client mode650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/58/9B/wKiom1S1FqKw0mDYAACUUGgoUpg841.jpg "title=" 1.jpg " alt= "Wkiom1s1fqkw0mdyaacuuggoupg841.jpg"/>650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/58/9B/wKiom1S1F7PCOf_9AAHbX2lH9hI296.jpg "title=" 2.jpg " alt= "Wkiom1s1f7pcof_9aahbx2lh9hi296.jpg"/>After the SW2 configured with a VTP password, the switch learns the VLAN information after viewing itVTP Experiment Com

"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 "after the bridge classifies its port role by Root port, specified port, non-specified port, creating a loop-free topology is straightforward: the roo

"STP" Role: Prevent broadcast storms, block loops, backup lines Principle: The blocking port is determined by the spanning tree algorithm An overview of STP (1) The generation of switched network loops A in the initial network communication, PC1 ARP entries do not have PC2 MAC address, according to the principle of ARP, PC1 will first send an ARP broadcast request (Request PC2 MAC address) to the swi

First in your English version, export the list or website template, this file may be such a drop: TEMPLATE.STP Name this file TEMPLATE.STP as Template.cab Unzip this *.cab file In the unpacked folder, you will find a manifest.xml to open it with a text editor The code for this location, such as the one in this article (1031), is replaced with the following location: for example, 2052 1033\sts\ Layouts\1033\ /_layouts/1033/

As shown in, the STP protocol can only solve the loop shown in Figure A. If a vswitch downlink has a loop, the upper-layer switch may be paralyzed, and the STP protocol cannot solve this problem, in this case, you must use other solutions. I. Cisco switches1. Enable portfast globallySpanning-tree portfast default2. Enable BPDU protection under the interfaceSpanning-tree bpduguard enable3. Enable BPDU protec

The value range of the switch STP configuration spanning tree priority is 0 ~ 61440, increment is 4096, its valid value is ,......, 61440. The smaller the priority value, the higher the priority. 0 is the highest, and 61440 is the lowest. When the root port or blocked port of a vswitch receives an inferior BPDUs packet, it indicates that the indirect link between the vswitch and the root bridge is faulty, the link from the switch to the root bridge ma

Bundle of switch two-tier devices (EtherChannel):Whether it is a Mac or IP, the last three bits through an algorithm will be 000-111 in the range of a number, after the binary conversion, can get 8 results 0 1 2 3 4 5 6 7 So a bundle can only bundle 8 lines A switch module can only bundle 6 groups.Command: Global Inter port-channel 1 build GroupChannel-group 1 mode on to add the port to the 1 groupDescription Cisco namingSW Mo Trunk StpThe format of BPDUs (Bridge Protocol data Units):Proto

There was an article before, introduction if the enterprise only use one switch to the network, there will be a single point of failure, if the switch is broken, at this time the normal work between several modules, the client can not access the server, can not connect the Internet, can not access the printer, that is, a point of failure, The entire network is not functioning properly. So in a typical switched network, we all need to redundant the switch, but the introduction of redundancy will

The Spanning Tree Protocol has two main functions: 1. Avoiding path loopback in L2 switching networks; 2. Implementing redundant backup in L2 switching networks. This article describes in detail the election process in the Spanning Tree Protocol configuration. Step 1: Select Root Bridge) In a spanning tree, at the beginning, each switch considers itself as a root bridge and sends a BPDU to elect the root bridge. Select the root bridge based on the value of BridgeID. Bridge ID consists of two pa

. Each time you change the Podfile file, you need to re-execute the pod update command3. To import the corresponding header files when using: #import "MBProgressHUD.h"PS: When performing pod install, in addition to Podfile, a file named Podfile.lock is generated, which locks the version of the current dependent library, and does not change the version even if the pod install is executed more than once, only the pod Update will change the Podfile.lock. This prevents third-party library upgrades f

1. Elect a single root BRIDGE within an STP domainCompare all the switch's bid, who is the small who is root, after the selection of root only root can periodically send BPDUs, every 2 seconds sent, all nroot, not eligible to send BPDUs2. Elect a single RP on top of all NrootThe Cos value increases on the receiver, and the increment depends on the receive port bandwidthThe first step is to compare the COP values for the inbound direction of all the in

Hello everyone, today I will continue to introduce you to the secondary development of AutoCAD using C. This section describes the problems in the previous example. In the previous example, I used to reference the AutoCAD 2004 Type Library for communication between C # and AutoCAD, but this method has two fatal disadvantages. The first drawback is that each d

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network[876]: [Failed]mar-10:56:06 cloud01 network[876]: Bringing Up interface Br0:could not load file '/etc/sysconfig/network-scripts/ifcfg-br0 ' Mar-10:56:06 cloud01 network[876]: Could not load F Ile '/etc/sysconfig/network-scripts/ifcfg-br0 ' Mar 10:56:14 cloud01 nETWORK[876]: Determining IP information for br0 ... failed; No link present. Check cable? Mar 10:56:14 cloud01 network[876]: [Failed]mar 10:56:14 cloud01 systemd[1]: Network.service:control Process exited, code=exited Status=1ma

STP determines each switch port (specified port: DP; root port: RP; Blocked port: AP)Judgment steps:1. Election of the root switch:Judging object: Select one of all switches running the STP protocol;Judging by: The switch selects the bridge ID value (switch priority +MAC) The smallest switch as the root bridge in the network;After determining the root switch, all ports of the switch are designated port DP;2

CCNA Experiment 14 STP redundant backup link (EtherChannel)Environment: Windows XP , GNS3.0.7 , VPCS.exePurpose: Learn how to configure redundant backup links.Steps:1 , open GNS Create the following project:650) this.width=650; "src=" Http://hi.csdn.net/attachment/201011/21/0_1290326291ColF.gif "/>Description:(1) First to add switching modules for SW1 and SW2 two virtual devices(2) Note the console port number for both devices: sw1:2002, sw2:2003(3)

A. STP(Spanning Tree Protocol) command: spanning-tree VLAN 1 root primary ( Vlan1 Root bridge)spanning-tree VLAN 2 root secondary ( vlan2 backup bridge)two. Hot Backup Route selection protocol (HSRP)Cisco the private protocol. Lab Environment:Configuration HSRP two three-layer switches, the VLAN IP The address cannot be the same, but the virtual IP must be the same, the same VLAN , HSRP The group must be the same. Network planning: 1

The origin of the 1.STP protocol.In the two layer network, the switch plays an important role, if there is a switch failure will affect the use of the network, in order to avoid the existence of a single point of failure, in the actual two-layer link will be used in the link redundancy, that is, the use of a number of connections between switching devices, that is, multiple switches are connected, This allows other switches to be used, even if one swi

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