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- 什么是VLAN?其作用是什么? - 知乎
VLAN原理及配置 vlan（Virtual Local Area Network）虚拟局域网 广播域：连接到同一个交换机的终端就可以说在同一个广播域内 为何要使用vlan？ 在我们的企业网中，一个企业级交换机一般是24口或者是48口，连接这些接口的终端在物理上形成一个广播域 广播域过大就会导致大量的广播报文泛滥，减少了可
- Fundamentals of creating VLANs - Part 1 - The concept
We are going to call the newly created 'Vlan 20' - 'Switch 2', as pictured above, for the purpose of this document Accordingly 'Vlan 20' is the same as 'Switch 2' So additional two switches are a part of the main physical switch And yes, they are blank, without any ports 4 Finally, create the third 'VLAN Switch' Commands: switch#configure
- 划分 VLAN 的作用是什么？ - 知乎
vlan标签的格式遵循802 1q标准，而802 1q标准中定义的vlan号（vlan id）的长度是12位，所以说vlan总共只有2的12次方，4096个。 这也就是为什么交换机只支持4k个vlan，多贵的都只支持4k个 那么问题来了，如果网络规模很大，或者说网络规模不大但是想多分一些vlan，4096个不够用了怎么办？ 没关系，网络规模
- 划分 VLAN 的作用是什么？
③灵活构建虚拟工作组：用 VLAN 可以划分不同的用户到不同的工作组，同一工作组的用户也不必局限于某一固定的物理范围，网络构建和维护更方便灵活。 2、VLAN 标签 为了使设备能够分辨不同 VLAN 的报文，需要在报文中添加标识 VLAN 信息的字段。
- IEEE 802. 1Q – VLAN Tagging and Trunking in Networking
IEEE 802 1Q is the networking standard that defines VLAN (Virtual Local Area Network) tagging on Ethernet frames VLANs allow network administrators to segment a physical network into multiple logical networks, improving security, efficiency, and management
- Fundamentals of VLANs - Router on a stick - Cisco Learning Network
To decide, which "Vlan Id Number" to attach, to the outgoing frames If the frame is going out of interface numbered FastEthernet 0 0 3, then attach Vlan-3 tag on to it *Click on the image to enlarge Logic The Vlan-Id-Tag that needs to be attached to a frame that leaves the router, is decided by the frames destination Ip address network Note
- 关于交换机的VLAN技术你了解多少？ - 知乎
Trunk 接口：连接交换机与路由器，允许多个 VLAN 的数据通过，帧携带 VLAN 标签。 Hybrid 接口：灵活多用，可同时属于多个 VLAN，可精确控制哪些 VLAN 的帧带标签发出。 四、经典案例：打通 VLAN 任督二脉 【场景】公司有行政部（VLAN 10）和研发部（VLAN 20）。
- A quick summarized view to Private VLAN (PVLAN)
Introduction: This document is anticipated for understanding Private Virtual LAN (PVLAN) concept; how VLAN is sub-divided into isolated sub-domains and the communication between isolated ports types (Promiscuous, Isolated and community ports) To begin with PVLAN, let’s look at the concept of VLAN as a broadcast domain
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