|
- 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 The 802 1Q standard introduces VLAN tagging to facilitate communication between VLANs across different network switches
- 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
- Different types VLAN - Cisco Learning Network
Dynamic VLAN - LIke MAC-based, dynamic VLANs do not have a specific VLAN ID range assigned Instead, VLAN membership is dynamically assigned by a VMPS (VLAN Membership Policy Server) based on the MAC address or user authentication Private VLAN (PVLAN) - PVLAN use a combination of primary and secondary VLANs
- What is the Native VLAN used for? - Cisco Learning Network
The native vlan is most useful when going to study voip As one port on the switch will connect to the IP phone, and a PC will connect to the phone So we end up having two devices attached to the same port What ends up happening is a vlan is made for the phones, which is prioritised, and the data traffic (from the PC) is left untagged This is one commonly known way of using the native vlan
- Why and how are Ethernet Vlans tagged?
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 contain the "Tag Protocol Identifier" (TPID) which is 8100 This also doubles as the EtherType 0x8100 for devices that don't understand VLANs
- What are the differences between Native Vlan vs Default Vlan vs Vlan 1?
The default VLAN is always set to VLAN 1 and it is the VLAN that comes pre-configured on every switch (Cisco, HP, etc) The concept behind this is that the switch needs at least one VLAN to operate as a switch hence the reason for VLAN 1 It is also worth noting that all ports are configured to be part of VLAN 1 unless configured EXPLICITLY for another VLAN The default VLAN CANNOT be changed
- Best Practices for Inter-VLAN Routing in CISCO
In this discussion, lets explore the best ways to set up Inter-VLAN Routing on Cisco devices, using simple explanations and clear examples to help configure network efficiently
- 划分 VLAN 的作用是什么？
①静态 VLAN（基于端口的 VLAN）：这是一种固定的划分方式，明确指定交换机各端口属于哪个 VLAN。 优点是定义 VLAN 成员简单明了；缺点是当网络中的计算机数目较多时，设定操作会变得繁杂，并且计算机每次变更所连端口，都必须同时更改该端口所属 VLAN 的设定
|
|
|