VLAN(Virtual Local Area Network),是一种通过将局域网内的设备逻辑地而不是物理地划分成一个个网段从而实现虚拟工作组的技术. 以一个网络接口为主设备,可以创建多个虚拟网络接口,称为子接口(802.1q子接口),主设备称为主接口或父接口:每个子接口对应一个vlan id:当主接口接收报文时,如果为802.1q报文,则根据vlan id将报文分发的对应的子接口:当子接口需要发送报文时,子接口在报文中添加802.1q头,然后交由其主接口实际完成发送. mac vlan是其中…
转载标注: IEEE802.1Q 我粗略理解为对交换机入口规则和出口规则设置,入口打上VID,设置从哪些口可以出去,并且是否带标签. 一 VLAN的概念 VLAN(Virtual Local Area Network)即虚拟局域网,是一种通过将局域网内的设备逻辑地而不是物理地划分成一个个网段从而实现虚拟工作组的新兴技术.IEEE于1999年颁布了用以标准化VLAN实现方案的802.1Q协议标准草案. VLAN是为解决以太网的广播问题和安全性而提出的一种协议,它在以太网帧的基础上增加了VLAN头,…
SOLUTION VERIFIED October 13 2015 KB39674 KB741413 environment Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 question Suppose I want a VLAN ID of 192 for the eth0 on a RHEL 5 or 6 system.…
not on top of a bond Environment Red Hat Enterprise Linux 7 NetworkManager Issue Need an 802.1q VLAN in RHEL 7 when using NetworkManager. Resolution Remove any existing connection profiles for the interface which will have the VLAN(s). Assuming this…
1. Vlan Benefit ·To reduce CPU overhead on each device by reducing the number of devices that receive each broadcast frame • To reduce security risks by reducing the number of hosts that receive copies of frames that the switches flood (broadcasts,…