在日常企业网络设计中，我们经常会听到这两种隔离手段：VLAN 隔离与端口隔离。 VLAN 隔离能划分广播域，端口隔离能限制同 VLAN 用户互访。 但问题是—— 如果我想在“同一个 VLAN”里，又要共享网关上网，还要防止用户间互通，该怎么办？ 这时 ...

Virtual LAN (VLAN) technology, which is defined under the IEEE 802.1q specifications, has allowed enterprise to extend the reach of their corporate networks across the WAN. VLANs enable a LAN to be ...

As your home network expands, so do the burdens of administering the list of network appliances. Maybe you've expanded the number of wired devices in your network, and added additional managed network ...

It’s easy to see why virtual LANs have become popular on networks of all sizes. Imagine having multiple separate physical networks within a single organization — without the headache of managing ...

I'm a bit stumped on this one, and having a background in HP switches is making it worse. I have a metro-e connection that will have up to 100 VLANs coming in on it. This is connected to a GigE port ...

I have a need where I need to trunk several VLANs on an interface, along with untagged L3 traffic. I'm trying to set this up on Juniper EX-series switches. Here's an example config that I would like ...

To begin, we must have a more formal definition of what a LAN is. LAN stands for local area network. Hubs and switches usually are thought of as participating in a single LAN. Normally, if you connect ...

In Cisco LAN switch environments, the native VLAN is typically untagged on 802.1Q trunk ports. This can lead to a security vulnerability in your network environment. It is a best practice to ...