vlan simulator

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

Layer-3 switches are quite common, so I have studied how to build enterprise VLANs for layer-3 switches. Here I will share with you, hoping they will be useful to you. The emergence of Virtual lan vlan breaks the many inherent concepts of traditional networks, making the network structure flexible, convenient, and free to do as you like. VLAN divides user logic into working groups with relatively independen

Lab requirements: The topology is simulated based on the typical C3550-Headquarters-branch structure. The core route of the headquarters is C3550. The Extranet network uses the OSPF protocol and the Intranet is deployed through the VTP protocol to achieve network-wide interconnection.1, the headquarters core switch C3550-1 to create VLAN10/20/30/40, of which VLAN40 only for device management, do not port access, VLAN division.2, The C3550-1 is VTP Ser

[Background description]Before the user passes 802.1x authentication, the user belongs to a VLAN, which is the guest vlan. The unauthenticated client computers are in the guest vlan. They can only access the resources of the guest vlan server. After successful authentication, the port leaves the Guest

Any successful person is standing on the shoulders of giants to succeed, and I have not succeeded, and then I excerpt from an article and add some of their own experience to write about the VLAN, trunk and hybrid the difference:Ethernet ports have 3 types of links: access, trunk, HybirdAn access type port can only belong to 1 VLANs for connecting to a computer port;Trunk type port can allow multiple VLANs through, can receive and send multiple

VLAN and Trunk (1) Network performance is an important factor affecting business efficiency. Segmentation of large broadcast domains is one of the ways to improve network performance. A router can block a broadcast packet on an interface. However, the number of LAN interfaces of a router is limited. Its main function is to transmit data between networks rather than provide network access for terminal devices. The LAN access function is implemented by

If the port on the server has a pre-set trunk and allows certain VLANs to pass, then the server's network adapter must specify the VLAN it belongs to when it is configured, otherwise it will not work, which is more common in virtualized deployments.For example, in an office environment, the Office VLAN is 1020, the virtual physical host has two million gigabit network card, 3111 and 3112VLAN, which can be i

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

ObjectiveThe small partners who have done the app test on iOS should know that the normal user installs the app from the AppStore, installs the test version of the app, is usually developed to the QR Code Scan code installation,or develop an. IPA installation package file, which is installed through itools. It's not that easy to install app testing on an iOS simulator for a small partner who doesn't have an iphone real-world device.First, start iOS Si

1. Create a vlan on the vswitch Create a vtp management domain To create a vlan on a vswitch, you must first create a vtp management domain so that it can verify the current vlan on the network. The Catalyst 4000 Series Switch module only supports 802.1q. Determine whether the hardware supports trunk and whether the hardware supports trunk encapsulation: show por

I didn't want to say a lot of theoretical stuff, but the OSI of note one is an important foundation of learning network so I'm going to talk a little bit more about what's practical.Switching technology: Note One refers to the switch is the second layer of data link layer belonging to the OSI model, which is primarily a function of making communication between devices of the same network segment.Some common functions of the switchVLAN Technology : You can separate device logic on the same switch

The article I want to share and configure VLAN on Linux through Cisco Catalyst Switch.Requirements:1. Linux installed on a PC with one or more NICs (Network Interface Card). I Use the Centos 5.4 using 2.6.18-164.11.1.EL5PAE kernel. It should is applicable on other Linux distros such as Slackware, Ubuntu, Fedora, Debian, etc.2. Cisco Catalyst Switch 29503.2 Pc/laptop running WINDOWS/LINUX/BSD/MACOSX4.3 Straight CablesThis tutorial is based-on Network D

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

Layer-3 Ethernet switch: introduces L2 VLAN forwarding, configurations in layer-3 Ethernet switches, MAC addresses, and L2 VLAN forwarding, I hope you will have a clear understanding after reading the following articles. The forwarding mechanism of a layer-3 Ethernet switch is divided into two parts: layer-2 forwarding and layer-3 switching. First, let's talk about the second-layer forwarding process. MAC a