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Can a layer-3 Switch completely replace a router? This has always been the focus of debate. We can see that layer-3 switches are powerful, but only in a special environment can layer-3
1. Background Generally implement VLAN communication, or use a three-tier switch, or a single arm routing, both of which are very expensive, so when there is the need for VLAN communication, and the data volume of the VLAN communication is not very large, with 50 of Soho route to build a network is very affordable. My original demand is this:With an n-port two-layer swi
A three or four-day shift was added. Finally, the three-layer switch has been taken care of. The previous touch was a fool. (Huawei's technical support attitude is not very good), The configuration environment and configuration files are as follows: Environment, dual-WAN port routing access to ADSL, the next to the Huawei S3928p-si do core switches. The switch
, R-rip, M-mobile, B-BGPD-EIGRP, Ex-eigrp External, O-OSPF, IA-OSPF Inter areaN1-OSPF NSSA External Type 1, N2-OSPF NSSA Externaltype 2E1-OSPF external Type 1, E2-OSPF external type 2, E-EGPI-is-is, L1-is-is level-1, L2-is-is level-2, ia-is-is Inter area*-Candidate default, U-per-user static route, O-ODRP-periodic downloaded static routeGateway of last resort are not setO E2 192.168.10.0/24 [110/20] via 192.168.40.1,00:00:39, fastethernet0/0O IA 192.168.20.0/24 [110/
In the layer-7 Reference Model of IOS, the layer-2 data link layer is used for exchange and the layer-3 network layer is used for routing. However, the layer-
; six ,SW1 SW2 automatically get VLAN information650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M01/8A/2B/wKioL1gp4_DCQFZpAAAl9oFKAQo270.png-wh_500x0-wm_3 -wmp_4-s_3906825607.png "title=" image 8.png "alt=" wkiol1gp4_dcqfzpaaal9ofkaqo270.png-wh_50 "/>650) this.width= 650; "Src=" Http://s1.51cto.com/wyfs02/M01/8A/2B/wKioL1gp5ALT5V-0AABxn7Jnhyk426.jpg-wh_500x0-wm_3-wmp_4-s_ 251845630.jpg "title=" image 9.jpg "alt=" wkiol1gp5alt5v-0aabxn7jnhyk426.jpg-wh_50 "/>add each port to the VLAN separ
650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/46/4F/wKiom1PxtLuT8uDNAA7b5gUf4EM726.bmp "title=" Three layer switch different VLAN interworking. bmp "alt=" Wkiom1pxtlut8udnaa7b5guf4em726.bmp "/> Purpose: Two three-layer switches hang different VLANs for interoperability, all ports are access portsAfter the configuration is complete, 10.86.3.50 can pin
Experimental background: As the size of the company continues to expand, the network department at the same time applied for two optical fiber, one of the 10M, the other one for 20M, due to bandwidth asymmetry, the requirements in the three-tier switch to do a strategic route to achieve 2:1 of the traffic allocation, followed by two lines to each other, so as to achieve a safe and reliable network transmission Experiment Network topology diagram:
decision. It is a switch because it is extremely fast and almost achieves the second-layer switching speed. Who are the advantages and disadvantages of layer-2 switches, layer-3 switches, and routers? To answer this question, let's start with the working principles of these
The comparison between a layer-3 Switch and a router is in a large LAN. This function is perfect and helpful for understanding the layer-3 Switch. However, some manufacturers' switches can also directly connect to the Internet to
information, high-speed network connection has become an essential prerequisite for the formation of campus network. 2. Diversity of information structure Campus network should meet the needs of different levels of application, can be divided into multimedia applications (Internet access, multi-media teaching, electronic library, video on demand, school sites, internal e-mail, etc.), information management (score statistics, file management, etc.) and remote communications (external dial-in,
The principle of layer-3 switching has always been the most difficult for many readers to understand. In daily reader exchanges, we often see readers raise this issue, especially the differences and connections between layer-3 switching and routing principles. In fact, a layer
bring great benefits to the future expansion of the network. VLAN partitioning by routers is a cost-effective method in small and medium-sized enterprises. However, VLAN partitioning by routers seriously affects the network performance of enterprises, therefore, layer-3 switches with routing functions are widely used in VLAN networks of large and medium-sized enterprises. However, we must be clear that a V
decision. It is a switch because it is extremely fast and almost achieves the second-layer switching speed. Who are the advantages and disadvantages of layer-2 switches, layer-3 switches, and routers? To answer this question, let's start with the working principles of these
language involved is JS (jqery), Java, HTML. Java-specific servlets interact with JSP (HTML), List-to-json in Java, jquery manipulation DOM elements, Ajax technology, Highcharts, Java multithreading, Java timed Tasks, and JS timed refreshes. Feeling, their basic knowledge is really not solid, reading + practice, leak check.(5) The most risky part of the project should be done first. Just put this sentence on the heart, this time really realized. Previously did not touch the Java multithreaded p
violation protectSwitchport port-security mac-address AAAA.BBBB.CCCCTest connectivity again650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/79/84/wKiom1aTZKvSWuVWAAAfdSm1WZU460.png "title=" m4.png "alt=" Wkiom1atzkvswuvwaaafdsm1wzu460.png "/>650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M02/79/84/wKiom1aTZMqxOHaiAABEZSKIQJM171.png "title=" m5.png "alt=" Wkiom1atzmqxohaiaabezskiqjm171.png "/> You can also set the maximum number of MAC addresses the port can learn and set stick
The rapid development of computer network technology and application has promoted the continuous improvement of the degree of social informatization, while the improvement of information demand has promoted the emergence of new network technologies. These technologies have greatly improved network scalability, flexibility, transparency, and speed. Among the numerous network products, switches play a vital role in building high-performance networks, and their technological development is also rem
At present, the battle's commanding heights are the third-tier switch market, especially the edge switch. According to market research, edge switches have begun to surpass core switches and gradually become dominant. The survey results on user requirements also prove that the most important factor for users to purchase a vswitch is application and security. Therefore, most of them use
Cocos2d-X-3.X scene and layer, cocos2d-X-3.X scene 1. scenarios and layer-related functions 1. void runWithScene (Scene * scene ). This function can be used in running scenarios. This function can be called only when the first scenario is started. If a scenario already runs, you cannot call this function. 2. void r
one undertaken by the traditional router, but a wide variety of broadband access devices, such as broadband routers and VPN firewalls. Three-layer switches that use VLAN routing instead of traditional routers have emerged. hardware-based route forwarding is more efficient and faster than software-based route forwarding of traditional routers. Now enterprises have a better choice to deploy VLANs, that is, layer
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