VLAN（Virtual Local Area Network）又称虚拟局域网，是一种将局域网设备从逻辑上划分成一个个网段，从而实现虚拟工作组的新兴数据交换技术。 一个VLAN组成一个逻辑子网，即一个逻辑广播域，它可以覆盖多个网络设备，允许处于不同地理位置的网络用户加入到一个 ...

地址学习过程：switch根据接收的报文，记录报文的源mac地址以及对应的端口号，并记录到switch地址表中，同时广播该报文到其他的端口； 单播通信过程：如B（源端口2）向A发送报文，则B首先发个Switch，Switch根据目标MAC地址，查表，查到后，然后将该报文转发给 ...

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 ...

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 ...

We have nine DS1's to remote offices currently provided by Qwest. We get excellent pricing and thus will be sticking with Qwest. We also have a Qwest QMOE link for our connection back to the state ...

Once your home network grows a little more complex, you soon realize that grouping devices into virtual local area networks (VLANs) makes a lot of sense, both from a security and administrative ...

I am using an x520 with windows 2008 to capture packets but the vlan tag info is blank. I cant for the life of me figure out wtf to allow it to pass. I ...