Smart switches are still commonly used, so I studied them ~ A comprehensive comparison of layer-7 smart switch products is provided here to share with you, hoping to be useful to you. The Cisco CSS 11500 series content service smart switch is a compact modular platform that provides the most abundant layer-4-7 traffic
0SI layer-7 protocol: Transmission Layer AnalysisThe lower layer of 0SI is mainly for data communication, the higher layer of 0SI is for users and information processing. The transport layer is located between the lower and higher
0SI layer-7 protocol: Session Layer Analysis 1. Main tasks of the Session Layer: provides a user-oriented Connection Service to provide necessary means for organization and synchronization between cooperative session users. 2. Session Layer Service session connection managem
Two things-layer-7 proxy mode or IP-layer VPN1. many people may ask whether I use the proxy mode or the VPN mode, if I want to encrypt and protect data on an insecure link.
Please refer to the incorrect method. The urine will not fall into the stool pool, but on the squatting position. Sometimes, if the angle is not aligned, the stool will not fall into the pool
OSI Layer-7 Model
OSI: Open System Interconnection Reference ModelProposed by ISO in 1984, the objective is to establish a general network standard.
Application LayerProvides user interfaces for users to access the network.For example, email, WWW, and network file access.Session LayerManage sessions between computersImplement inter-computing session controlPresentation LayerData format conversionCompressi
to this converged segment route.Notadvertise: Do not broadcast the summary information to this aggregation segment route.Cost: Sets the overhead for the aggregation route.Example: Virtual connection + route aggregation, topology in attachment650) this.width=650; "src="/e/u261/themes/default/images/spacer.gif "style=" Background:url ("/e/u261/lang/zh-cn/ Images/localimage.png ") no-repeat center;border:1px solid #ddd;" alt= "Spacer.gif"/>650 "this.width=650;" src= "http ://s3.51cto.com/wyfs02/m0
I. Definition of routing control
1) IP address and routing control2) Static Routing and dynamic routing3) Fundamentals of dynamic routingSecond, the routing control range1) Autonomous systems and routing protocols2) IGP and EGPThird, ro
IP address selection is one of the most important functions. A simple process for IP layer processing. Optional data packets can be generated by the local host or another host. In the latter case, the host must be configured as a router; otherwise, the datagram received through the network interface will be discarded If the destination address is not the local machine. Steps for searching a route table by IP Address: 1) Search for a required host addr
?The routing profile contains 7 routes by default, and we exclude the show route and then visit the following:We've ruled out show this route, so we can add it in a normal way.The action is GET, ' Posts/:id ' is the browser input route format,:to=> ' Posts#show ' is handed to the corresponding controller and actionAlso note that the request action does not appear in the first URL, but if the request action
and custom XHR requests)
Using the $provide service to build customizable services (use the $provider service to create custom services)
Forms and validations (forms and validation)
ie compatibility (ie compatibility)
Finally, if you like our series of tutorials, just as we are trying to create a book, this book discusses all the topics listed above, more information please visit ng-book.comHere is a sample of Ng-book, free of charge Oh! Just leave your email address and we'll
//Set the default gateway, or you can add the dev eno16777736 laterIP route del Default via192.168.100.1 //Delete the default gateway or directly write IP route del defaultIP route add192.168.123.0/ -Via192.168.123.1Dev eth0//set the gateway for the 192.168.123.0 network segment to 192.168.123.1, Data walk eth0 interfaceIP route del 192.168.123.0/24//delete route for 192.168.100.123.0/24 network segmentRespect for the work of others reproduced please be
This is another way to implement the wireless access point AP mode using HOSTAPD under Linux: HOSTAPD routing mode configuration.For the basic configuration of hardware and software and HOSTAPD installation in the "CentOS 7 HOSTAPD AP Mode Configuration" in the first half of the content, you can look at that article, and then read this article.HOSTAPD AP mode configuration requires a wired network card and
1.1.123.3R3:router RIPNo autoNET 1.0.0.0Nei 1.1.123.1-The most secure way to validate is to verify that the R3 can accept R1 routes, and R1 does not accept R3 routesR1:Key Chani TestKey 1Key-string Ciscoint f0/0IP RIP auten mode MD5IP RIP authen key-chain testSho IP roR3:Ken Chani TestKey 2Key-string CiscoSho IP roRIP MD5 Verification principle: Key-id from the top to the next match, if the other side of the key file and their own does not match, it key-id+1 until the same password, if the othe
includes IP protocol and RIP Protocol, which are responsible for data packaging, addressing, and routing. It also contains the inter-network Control Message Protocol (ICMP) to provide network diagnostic information.
Layer 3: Transport Layer
Corresponding to the transport layer of the OSI
recovery protocol or error-free recovery protocol, and reuse the input of data streams of different applications on the same host, it also includes the re-sorting function for packets that are not in the correct order. Example: TCP, UDP, and SPX. Www.2cto.com (5) network layer: This layer defines the end-to-end packet transmission. It defines the logical addresses that can identify all nodes, and also defi
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