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- vlan - Explain what is Virtual LAN - Network Engineering Stack Exchange
A virtual LAN (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2) A LAN is an abbreviation for local area network and in this context virtual refers to a physical object recreated and altered by additional logic
- 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
- IEEE 802. 1Q – VLAN Tagging and Trunking in Networking
VLAN tagging is the process of inserting VLAN-related information into Ethernet frames This helps network devices identify which VLAN a frame belongs to when traversing trunk links VLAN tagging is primarily used to distinguish traffic in environments where multiple VLANs share the same physical infrastructure
- 什么是 VLAN？ - 知乎
动态vlan：注意，vlan用来划分广播域，因此如果是基于mac划分，那么不同vlan下设置相同子网的ip是可行的（具体原因同静态vlan）；如果是基于ip地址划分，不同vlan下设置相同子网的ip就是不可行的，因为属于不同的vlan，属于相同的子网，这两个命题的异或必须为1。
- Cisco Learning Network
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- If Native VLAN is Not Used Then . . . . - Cisco Learning Network
I'd really like to know how the Native VLAN is handled in real-world networks To prevent VLAN-Hopping and other security problems, can I just create a VLAN, let's call it VLAN 11 (name Native_VLAN) and specify VLAN 11 in switchport trunk native vlan 111 commands on all trunks?
- Why should I use vlans instead of subnets?
VLAN is a feature of Ethernet switch which separates traffic into multiple virtual broadcast domains, usually using 802 1q standard Some switches even let you group ports into a virtual smaller switches (bridges) without the use of VLAN In this case you run 1 subnet on top of a VLAN VLAN is for the convenience of management
- ethernet - Introductory level explanation of VLANs - Network . . .
A VLAN (Virtual LAN) is a way of creating multiple virtual switches inside one physical switch So for instance ports configured to use VLAN 10 act as if they're connected to the exact same switch Ports in VLAN 20 can not directly talk to ports in VLAN 10 They must be routed between the two (or have a link that bridges the two VLANs)
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