Cisco CCNP / BCMSN Exam Tutorial: Dynamic VLANs and VMPS
Knowledge of Dynamic VLANs and VMPS is important in your efforts to pass the BCMSN exam and earn your CCNP, and it’s also a great skill to have for your networking career.
As a CCNA and CCNP candidate, you know how and why to configure static VLANs. Static VLANs can be a powerful tool for reducing unnecessary broadcast and multicast traffic, but if hosts are moved from one switch port to another, you’ve got to make those changes manually on the switch. With Dynamic VLANs, the changes are made – how else? – dynamically.
The actual configuration of dynamic VLANs is out of the scope of the BCMSN exam, but as a CCNP candidate you need to know the basics of VMPS – a VLAN Membership Policy Server.
Using VMPS results in port VLAN membership changes being performed dynamically, because the port’s VLAN membership is decided by the source MAC address of the device connected to that port. (Yet another reason that the first value a switch looks at on an incoming frame is the source MAC address.)
In my home lab network, I’ve got a host connected to switch...
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