vlan simulator

* Vlan configuration ideas (access and Trunk) (1) create a Vlan and configure a static VLAN on an IOS-based switch: switch # vlandatabaseswitch (vlan) # vlanvlan-numnamevlan-nameswitch (vlan) # exitswitch # configureteriminalswitch (config) # interfaceinterfacemodulenu *

A typical LAN is to connect a core switch with a layer-3 Switch to several Branch switches (not necessarily with layer-3 switching ). We assume that the core switch name is com, and the Branch switches are par1, par2, and par3 respectively, which are connected to the core switch through the light module of port 1; assume that the vlan names are counter, market, and managing ......Work to be done:A. Set vtp domain (both core and Branch switches)B. Conf

If we want to communicate between VLANs, we usually use the three layer switch or router sub-interface mode. Linux on the VLAN with Cisco switch relay connection, also can realize their communication with each other.Environment: RHEL 5.2 Minimized installation, physical NIC Eth1, trunk port connected as VLAN switch connected to 2960 GIGABITETHERNET0/1. Another physical NIC Eth0 as an upstream port, connecti

Connect to the abovehttp://wangchunhai.blog.51cto.com/225186/1857192When using the vsphere virtual Datacenter, there are multiple virtual machines in the same network segment. Sometimes, the security policy does not allow these same network segments of the virtual machines to communicate with each other, this time you can use the "Private VLAN" function.5.1 Private VLAN IntroductionDedicated

I. Features of VLAN VLAN has the following features:Segmented, which can be divided into different network segments by department, function, and project;Flexibility: users who make up a VLAN do not need to consider the physical location of the thing. The same VLAN can also span multiple switches;Security: by separatin

* Vlan configuration ideas (access and Trunk) (1) create a Vlan and configure a static VLAN on an IOS-based switch: switch # vlandatabaseswitch (vlan) # vlanvlan-numnamevlan-nameswitch (vlan) # exitswitch # configureteriminalswitch (config) # interfaceinterfacemodu *

First, the generation of Super VLAN backgroundIsolate-user-vlan successfully solved the problem of reducing the number of VLANs, and also realized the sharing of three-layer gateways to some extent. But it also has a problem with MAC address duplication that consumes MAC address table entries, and the technology itself belongs to a two layer VLAN technology.In a

The principle of Super VLAN aggregation, which is no longer difficult to understand, is also mainly used in the network of service providers to solve the shortage of IPv4 address resources. A Super VLAN is also known as VLAN Aggregation. The principle is to set a Super VLAN and multiple Sub VLANs (subvlans) association

Virtual lan vlan) not only facilitates network security and prevents network storms, but also improves network operation efficiency and solves many other problems. The popularization of layer-3 switches creates conditions for VLAN applications. In the process of upgrading the network, I also used VLAN technology to solve the problem of network expansion. I. Netwo

Switch VLAN, TRUNK ,VTP configuration1. Configure the IP address of the CISCO two layer switch (Catalyst 2950 for example )SW1 (config) #int vlan 1//Enter the management interface interface VLAN 1SW1 (config-if) #ip address 11.1.1.2 255.255.255.0//Configure IP AddressSW1 (config-if) #no shutdownSW1 (config-if) #exitSW1 (config) #ip default-gateway 11.1.1.1//confi

Troubleshooting of non-synchronous VLAN configuration information in VTP, vtpvlan VTP (VLANTrunk Protocol, VLANTrunk Protocol) is a dedicated Cisco VLAN used to maintain and manage dynamic VLANs (such as VLAN Based on MAC addresses, IP addresses, network protocols, and VLAN management policies). It can be used to autom

Huawei s5700 switch vlan settingsCurrently, there are several Huawei s5700 switches, common switches, and tp-link routers. 1. The tp-link router connects to the Internet. 2. The s5700 switch divides vlan. 3. Common switches are connected to VLANs and PCs. The following figure shows the network topology. The s5700 has all vlan1 ports in vlan1. Vlanif1 configures the ip address of the vro CIDR block to connec

Required knowledge:First, we should understand Catalsty 4908G-L3. In fact, it is a vro that uses the cisco ios configuration interface completely. By default, all interfaces are routable interfaces. Catalsty 4908G-L3 does not support L2 protocol, VLAN trunk protocol, dynamic trunk protocol, and port aggregation protocol. Catalsty 4908 does not support the following types: IOS 12.07-based1. Access Control List.2 802.1q3 apple talk routing4 port snoopin

[Cisco] DHCP relay, layer-3 Switch VLAN Routing PracticeThe experiment topology uses the GNS3 0.8.6 simulator to build a DHCP server using Red Hat 6.5. The experiment requires configuring a layer-3 Switch VLAN routing so that VLAN10 and VLAN20 members can access each other. Performs DHCP relay for layer-3 switches so that VLAN10 and VLAN20 members can obtain IP a

Basic knowledge of VLAN division experiment: VLAN is short for Virtual Local Area Network (VLAN), which is a logical Network divided on a physical Network. This network corresponds to the L2 network of the ISO model. VLAN division is not limited by the actual physical location of the network port. A

VLAN is an important part of swap technology. It logically divides a physically directly connected network into multiple subnets. Each VLAN has a corresponding broadcast domain. Different VLANs must communicate with each other through layer-3 switching technology. Layer-3 switching is a technology that combines routing and switching. After the router routes the first data stream, a ing table between the M

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

Technical standards for VLANs IEEE 802.1Q was formally promulgated by IEEE Commissioners in June 1999, and the earliest Vlna technology was proposed by Cisco (Cisco) companies in 1996. With the development of the past few years, VLAN technology has been widely used in large and small enterprise networks, becoming the most popular Ethernet LAN technology at present. This article is going to introduce one of the most common switch technology application

Tags: vlannativetrunkaccesshybrid Tag message structure is after the source MAC address and destination MAC address, plus 4bytes VLAN information, the normal PC network card is not recognized. The access port belongs to only 1 VLANs and is typically used to connect to a computer port. The port of the trunk type can be used for multi-VLAN communication. The hybrid type of port allows m

VLAN (Virtual LAN) technology is an important technical measure to ensure the safe and stable operation of large networks. with the active participation of many vendors and the widespread acceptance of end users, it has been widely used in actual network construction. The reason why VLAN technology is attractive is that it has enhanced its network management functions in three aspects, this simplifies the w