Fundamentals of creating VLANs - Part 1 - The concept
An 'imaginary | software based | virtual switch' is now a part of 'Main Switch' We are going to call the newly created 'Vlan 10' - 'Switch 1', as pictured above, for the purpose of this document Accordingly …
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 …
A quick summarized view to Private VLAN (PVLAN)
To begin with PVLAN, let’s look at the concept of VLAN as a broadcast domain. In general VLAN is a concept of segregating a physical network, so that separate broadcast domains can be created. …
VLAN1 and VLAN Hopping Attack - Cisco Learning Network
This VLAN Hopping Attack method would be possible by having the attacker and the target machines connected to the same switch. The attacker in this case would use malicious software to add the …
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 …
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 …
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有什么作用？ - 知乎
VLAN (virtual localArea network)是一种虚拟局域网技术，它可以将一个物理局域网划分为多个逻辑上的虚拟局域网。 基于交换式以太网的虚拟局域网在交换式以太网中，利用VLAN技术，可以将由交换机 …
Why and how are Ethernet Vlans tagged?
Jan 31, 2015 · In reality a VLAN tag is inserted in the Ethernet frame like this: The 802.1Q (dot1q, VLAN) tag contains a VLAN-ID and other things explained in the 802.1Q Standard. The first 16 bits …
security - Why should the native VLAN never be used? - Network ...
Jul 1, 2016 · An attacker being located on a non-native VLAN manages to turn a switch access port into a trunk one. To send traffic to the native VLAN he will just have to change his IP address (a single …