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The expansion of the enterprise scale has resulted in the continuous expansion of the enterprise's network scale. Many enterprises have adopted the method of directly adding computers to the original network to expand the network scale, the network system becomes more and more complex, and network management becomes more and more difficult. The security indexes in the network become lower and lower, and the utilization of network resources is also greatly reduced, how to effectively manage netwo
CISCO PT Simulation Experiment (9) Inter-VLAN routing for layer three switchesExperimental Purpose : Mastering the configuration of the switch Tag VLANMastering the configuration method of three-layer switch VLAN routingInter-VLAN communication via three-layer switchExperimental Background :The Company's finance department and sales department are in different of
Command command feature configure terminal into global configuration mode vlan vlan-id create VLAN command name vlan-name Add name end configuration to created VLAN, return privileged mode show VL An {namevlan-name |idvlan-id} View the results of the configuration completion
There are many things worth learning about VLAN technology. Here we mainly introduce VLAN Technology and its practical application in enterprises. VLAN Virtual LAN (VLAN) refers to the logical segmentation of network users connected to the second layer switch port, and segment networks according to user requirements wi
Tags: Database Cisco switch Communication Experiment: packet capture with intrinsic VLAN Lab Topology 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/4D/D3/wKiom1Ra2eXDvF5vAACuEQ7Gk7A838.jpg "Title =" image 1.png "style =" float: none; "alt =" wkiom1ra2exdvf5vaacueq7gk7a838.jpg "/> Lab requirements The two PCs are in the same VLAN, so that the VLAN
Enable the VMware ESXi virtual switch to support VLAN Currently, virtualization is widely used. Generally, a physical host can create multiple virtual machines on a physical host after installing VMware ESXi or Hyper-V Virtual Machine Software, in addition, each created virtual machine can provide external services like the original physical machine, which can undoubtedly make full use of server resources to save power and space. But when most of our
VLAN:I. Causes of VLAN generation: Ethernet lacks forwarding Control MeasuresIi. VLAN technology goals: isolate broadcast and security3. Implement VLAN1. vlan TAG: TAG (4B: 2B TPID, 2B PRi + vlan id) without untag2. vlan Division: Based on port, MAC, IP subnet, protocol, and
Virtual local Area network VLANa Experimental topologies (using the simulator GNS3 )650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/5B/41/wKiom1UC1nCwI5wgAADtERJv3wA282.jpg "title=" 1.png " alt= "Wkiom1uc1ncwi5wgaadterjv3wa282.jpg"/>two Experimental RequirementsPC1 and the PC3 belongs to the finance DepartmentPC2 and the PC5 belongs to the finance DepartmentPC4 and the PC6 belongs to the finance DepartmentGuarantee Different VLAN cannot be
Tags: http os using ar strong data sp div onA brief talk on VLAN technology http://www.h3c.com.cn/MiniSite/H3care_Club/Data_Center/Net_Reptile/The_One/Home/Catalog/200911/655250_ 97665_0.htmBaidu Encyclopedia VLAN Http://baike.baidu.com/view/1362579.htm?fr=aladdin3.2 VLAN member connection modeThere are three ways to connect
VLAN Division is also the most widely used and effective method. Currently, most VLAN-based switches provide this VLAN configuration method. This VLAN division method is based on the switch port of the Ethernet switch. It divides the physical port on the VLAN switch and the
Switch vlan + vrrp + stp, vlanvrrp Topology: Configuration code: Sw1 ------------ Sys Vlan 10 Vlan 20 Quit Int e0/0/1 Port link-type access Port default vlan 10 Int e0/0/2 Port link-type access Port default vlan 20 Int e0/0/3 Port link-type trunk Port trunk allow-pass
What if the number of VLANs is insufficient?-The Q-in-Q Technology of beacon network makes VLAN configuration more flexible (18:38:03) In the IP data network architecture, when using a vswitch as the access device and using a LAN as the access methodAn important issue is the isolation between users, because users connected to the LAN are often in the same broadcast domain, and their communication information can be monitored by other
Recently, a switch product in the company used VLAN-related things. It was hard to understand the things. I took some time to sort them out and showed them to the people who needed them, saving time. Let's get down to the truth. 1. VLAN Origin Traditional Ethernet is a broadcast network,NetworkAll Hosts in are connected through the hub or vswitch and are in the same broadcast domain. As the basic device fo
A sample code for VLAN configuration problems of a vswitch. It is very common to set a VLAN name. According to the 51cto editor, the basic knowledge about VLAN settings of vswitches must be tested in order to make greater progress. Apply to the port. First, set the VLAN name. Use the vlanvlan number namevlan name. Conf
I. Lab Objectives Master the configuration of the switch tag VLAN; Master the basic configuration methods of layer-3 switches; Measure the test taker's knowledge about how to configure VLAN routing for a layer-3 switch; Layer-3 switches are used to implement inter-VLAN communication; Ii. Lab background An enterprise has two main depart
We know that the traditional LAN Ethernet uses a carrier-monitored multi-channel access (CSMA/CD) method with conflicting detection. In CSMA/CD networks, nodes can use the network at any time they have data to send. Before the node transmits data, it "listens" to see if the network is busy. If not, the node begins to transfer the data. If the network is in use, the node waits. If two nodes are listening, without hearing anything, and starting to use the line at the same time, there will be a con
L3 and L4 exchanges are very mature. The exchange technology is also widely used in the Internet, and the full exchange network is already very common. VLAN usage is essential in these networks. 1. VLANVirtual LANs) Description A VLAN is a switched network logically divided according to its role, plan group, and application. It has nothing to do with the user's physical location. For example, several termin
There is an existing Huawei s5700 switch and a number of ordinary switches, as well as a tp-link router. The 1.tp-link router connects to the extranet. The 2.s5700 switch divides the VLAN. 3. Normal switch is connected to VLAN and PC side. The network topology diagram is as follows: 650) this.width=650; "title=" Initialsample "style=" border-left-0px; border-right-width:0px; border-bottom-width:0px; margin-
Ciso DHCP VLAN STP VTP VRRP OSPFI. Topology650) this.width=650; "src=" Https://s2.51cto.com/wyfs02/M00/8E/A7/wKiom1jHxGmTRs6LAADyPg4IY1g214.png "title=" QQ picture 20170314182152.png "alt=" Wkiom1jhxgmtrs6laadypg4iy1g214.png "/>Two. Interface configurationIOU1 (config) # hostname DHCPDHCP (config) # int e0/0DHCP (config-if) # IP Add 1.1.1.1 255.255.255.0DHCP (CONFIG-IF) # no shutDHCP (config) # int E0/1DHCP (config-if) # IP Add 2.2.2.1 255.255.255.0DH
VLAN (Virtual Local Area Networkd) A VLAN is a logical network divided on a physical network. This network corresponds to the L2 network of the OSI model. VLAN division is not restricted by the actual physical location of network ports; A VLAN has the same attributes as a common physical network; Layer-2 unicast, broad
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