vlan book

VLAN generation mainly to the design of local area network increased flexibility, so that network administrators in the division team, no longer limited by the user's physical location. VLANs can be implemented on one switch, or across switches. It can be divided according to the location, function or department of the network user. VLAN features flexibility and scalability, and using

Role of the switch serial port (Trunk: The following two encapsulation types can be used for relay over Ethernet through the serial port of the switch: -IEEE 802.1Q -ISL (Inter Switch Link, Cisco private) Procedure Step 1: Add a VLAN to the vswitch Switch1 # vlan database Switch1 (vlan) # vlan 2 Switch1 (

The differences between SVL and IVL in VLANs support L2 Switches of VLANs. The L2 forwarding and MAC address maintenance methods have changed, the following describes two vswitches with different MAC address maintenance methods. The SVL L2 Switch SVL (Shared VLAN Learning) does not attach vlan id when Learning MAC addresses and creating MAC address tables, or its MAC address table is used for all

Two vswitch configuration modes: Configure VLAN Based on port division as an example. Vswitch configuration modes can be divided into two categories: one is the configuration mode represented by a CISCO switch, and the other is the configuration mode represented by a Huawei or H3C switch. In fact, the two configuration modes are not essentially different, but the command names and configuration methods are different. If you grasp the basic principles

Note: switchport mode trunk can run directly on the 2950 switch, which enables 802.1q directly. To enable the relay function on vswitches such as 3550 and 4500, you must first select the encapsulation method, that is, run switchport trunk encapsulation dot1q.Sw0 # vlan databaseSw0 (vlan) # vtp domain ContosoSw0 (vlan) # vtp password ContosoSw0 (

Cisco 2950 switch VLAN division first configure the switch SC-2950> SC-2950> enSC-2950 # conf tEnter configuration commands, one per line. end with CNTL/Z.SC-2950 (config) # config-register 0x2102SC-2950 (config) # endAdd three VLANSC-2950 # vlan dataSC-2950 (vlan) # vlan 10 name v1VLAN 10 added: www.2cto.com Name: v1S

The VLAN mentioned here is a VLAN that complies with the IEEE 802.1Q standard.The frame structure is as follows:|da|sa|tag| type| date| crc|VLAN frames Add a 4byte long tag field to the source MAC address, relative to normal Ethernet frames. This field is specifically divided into:| tpid|priority| cfi| Vlan id|Tpid:tag

option is to submit only the specified name list (you can use show Security acl ip name editbuffer to view control entries not submitted to the content in the editing buffer ), the all option is used to submit all unwritten vacls.3. Map to VLANBoth vacl and ACL must be mapped to the target object after submission, for example, interface vlan1 // ip access-group 101 out: apply access-list 101 to the out direction of the vlan1 interface. 101 indicates the ACL number and is associated with the cor

Tag: mode command using log ENC Global relay name configurationSwitch interface type: Access: Access mode, PC via switch internet this way Trunk: Trunk mode, inter-switch connection in this way Switch VLAN creation mode: Database configuration mode Global configuration Mode Database configuration mode: - name Vlan20 (VLAN name optional) switch (

The Extreme Summit vrovlan VLAN is configured on the Extreme Summit vrovlan with a VLAN. The port is added, and the server's IP address and route are configured, but the router cannot be connected. The vlan id problem was found at last. When you add a port to a VLAN, two modes are available: tagged and untagged. If the

Many users do not know how to buy VLAN switches. The most fundamental factor is to choose a cost-effective product that suits their needs. As enterprises pay more attention to information security, more and more enterprises begin to consider deploying Virtual LAN in the enterprise, in order to put confidential departments of some enterprises, for example, the R D department's network is isolated through the Virtual LAN to ensure data security. I. How

In the composition of wireless networks, the use of many devices deserves a detailed understanding. Today we will talk about the failure of VLAN wireless Internet access switches. The following is an experience shared by a netizen: A strange problem occurs in the VLAN of the two departments where an office area is located. Some websites on the Internet can be accessed normally, but some websites cannot; ema

Experiment topology:Objective: To: (1) Disable pc3 access without affecting hosts on other LAN(2) enable all hosts in the LAN to access the Internet. (Only one public address is available)(3) automatically obtain the Host IP address in the LAN.(4) r1 provides single-arm routing and dhcp functions to implement inter-vlan CommunicationIn accordance with the above requirements, to allow all hosts to access the Internet with only one public IP address, yo

VLAN configuration for linux Nic in virtual deployment (1) This article from Bkjia "Drop water stone Sun Jie" blog, original address: http://xjsunjie.blog.51cto.com/999372/1633815 If the switch port connected to the server has been configured with TRUNK in advance and allows specific VLANs to pass through, the server Nic must be configured with the corresponding VLAN; otherwise, it wi

How to add a process to remove VLAN information after a MAC frame enters the switch This article is just the understanding of how to add the removal VLAN process after the MAC frame enters the switch, please correct me if there is a mistake. The port for switches has two roles: Access port and trunk port. access ports can belong to only one VLAN, and

H3C S3100 Switch configuration VLAN I. Basic settings 1. the console line is successfully connected. 2. Enter System Mode 3. Change the device name [H3C] sysname TEST 4. view all configuration information [H3C] display current-configuration // display this is to view the device information in the current path 5. Create and enter VLAN 10 [H3C] vlan