Super-vlan :
Achieve two-layer isolation, three-layer interoperability;
all the Sub-vlan all three-tier communication needs to pass Super-vlan this gateway to implement;
in a large network, saving IP Resources. VLAN communication can be achieved by simply configuring the Super-
VLAN and the IEEE 802.1Q VLAN implemented by LinuxThe concept of VLANs
Introduction to VLAN Technology Vlanvlan overview
Ethernet is a data network communication technology based on CSMA/CD (Carrier sense multiple access/collision Detect, carrier listening multi-access/collision detection), which can cause serious conflict and broadcast flooding when the ho
VLAN ing (VLAN ing) VLAN Mapping principle introduction VLAN Mapping is also known as VLAN ing. Its main function is to replace the private network VLAN Tag in user packets with the public network
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 switch) B. Con
Learn Neutron Series articles:(1) Virtualization network implemented by Neutron(2) Neutron Openvswitch + VLAN Virtual network(3) Neutron Openvswitch + Gre/vxlan Network(4) Neutron L3 Agent(5) TBD1. L2 Basic Knowledge 1.1 VLAN BasicsThe LAN represents the local area network, which is usually used by the Hub and Switch to connect to the computer on the LAN. In general, when you connect two computers to the sa
Configuration of Virtual LAN (VLAN), lan vlan
Figure 1 Experiment Topology
Lab content:
(1) Name the switches SWA and SWB respectively.
(2) divide Virtual LAN VLANs and statically divide ports into valn.
First, use two methods to divide VLANs.
L vlan division in global mode: This method is used to create three VLANs on the SWA switch:
//--------------------------------------------------------------------------------------What do you mean by VLAN transmission?It doesn't matter what you come up with, I'll let you through. This explains the type of data, no matter what the data.Why there is the concept of VLAN transmission.The purpose of the original VLAN is to isolate, the data of different VLAN
1. What is a VLAN?VLAN is a virtual local area network, which means that the sites in the networks do not rigidly adhere to the physical location, but can flexibly add a network technology in different logical subnets as needed.Virtual local area network based on switched Ethernet in switched Ethernet, the VLAN technology can be used to divide the physical networ
Experimental topology650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/6F/7D/wKiom1Wd7-Pw1yLkAAFCmeJywRY388.jpg "title="}~ 4SQ4DEE8$8ZEM~F3 (8bh4.png "alt=" Wkiom1wd7-pw1ylkaafcmejywry388.jpg "/>C1 ip:192.168.10.1/24 C5 ip:192.168.10.5/24C2 ip:192.168.10.2/24 C6 ip:192.168.10.6/24C3 ip:192.168.10.3/24 C7 ip:192.168.10.7/24C4 ip:192.168.10.4/24Experimental requirements1, C1 and C2 belong to VLAN10,C3 and C4 belong to Vlan20,c5 and C6 belong to VLAN30,C7 belong to Vlan402, members of the
Inter-VLAN Routing 3 ways: One physical connection per VLAN, one-arm routing, three-layer switching.One physical connection per VLAN: A separate interface is assigned to each VLAN on the router, and a physical link is used to connect to the Layer two switch. When the host between the VLANs needs to communicate, the dat
1, create VLAN in fact, as long as 2 steps, only need 2 commands:① If you need to put the gateway in EX2200, you need to create a virtual three-layer interface SVI, so we can first create an SVI as the VLAN gateway that is about to be created.② the virtual interface SVI to the VLAN while creating the VLAN.Interfaces in network devices generally have the concept o
Recently focused on the next VLAN division, found that the VLAN divided into 2 kinds, usually used in the work called the local VLAN, there is a kind of called end-to-end VLAN, generally used in more than 10 or dozens of switch-sized enterprise network.Baidu through the difference between the two, the description is no
http://ubuntuforums.org/showthread.php?t=703387
Introduction to Ubuntu website
802.1q VLAN HOWTO Doing 802.1q trunking to a Ethernet switch is really easy. I describe two methods-a text only one for servers, and a GUI one for desktops.The VLAN number that is interface uses always gets appended to the physical after a dot, so for interface a instance Rface eth0 using VLA
Vswitch VLAN and vswitch vlan for micro-enterprises
Configure vswitch VLANI. Tutorial PurposeCreate a VLAN in the vswitch and add the corresponding port to the corresponding VLAN.Port 1: VLAN10Port 2: VLAN20Port 3: VLAN30
Ii. experiment environmentSoftware
ENSP 1.2.00.500 Virtual Device
PC: PC1-PC3
S3700 switch: SW1
Iii. Experiment Topology
Iv. Experiment steps
information internally and use it for traffic forwarding.
At this point, we can conclude that if the vlan id of the group cannot be modified after the packet is sent from the source node, that is, the end-to-end vlan id remains unchanged, the VLAN reliability is equivalent to physical security.
We will discuss this issue in detail below.
Control Panel
Malicious
New VLAN and enable this VLAN DHCP function
This example is used inVmwareviewRequiredDHCPAutomatically obtainedIPAddress:
1, Connection Server Specify IP Address 192.168.30.2 , So IP Slave DHCP Pool exclusion, if there are other IP The address must be retained. You can continue to exclude it.
2, DHCP The gateway of is 192.168.30.1 , DNS Is 192.168.0.120 And 192.168.0.121
Under Linux, you can use Vconfig to manage VLAN virtual appliances as long as the system kernel supports it1. Check the Environment firstLsmod grep 290220 14384 1 18542 1 8021q2, Installation VconfigYum Install -y vconfig3. Configuring the VLAN interfaceFor example, configure VLAN 2202 at the eth2 port22022202 to IF-:eth2:-Pull the interface up and set the IPIP
Http://www.h3c.com.cn/Products___Technology/Technology/LAN/Other_technology/Technology_book/200804/603079_30003_0.htmIsolate-user-vlan Technical white PaperKeywords: isolate-user-vlan,secondary VLANSummary: The Isolate-user-vlan uses a two-tier VLAN structure: Isolate-user-vlan
This article was reproduced from: http://blog.chinaunix.net/uid-20786208-id-4291059.htmlTechnorati Tags: Linux VLAN --------------------------I am the Happy dividing line--------------------------------------------------The first part: The core concept of VLAN speaking of IEEE 802.1q, are known to be VLANs, said VLAN, basically there is no blind area, network Fou
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