Well, we’ve used these quite a few times in our topology builds but it is time to provide a little more detail about sub-interfaces and why we use them. In addition, we will look at a close cousin called the secondary IP address. Both provide two or more IP addresses on a single physical interface but unlike the secondary IP address, sub-interfaces use a trunk and VLAN tags.
This video also includes a short Packet Tracer demo on the sub-interfaces.
For more VLAN content on the channel:
VLAN and trunk build series part 1:
VLAN and trunk build series part 2:
VLAN and trunk build series part 3:
For more Packet Tracer or Routing/Switching, take a look at these playlists:
Books and other products for networkers
Packet Guide to Core Network Protocols:
Packet Guide to Routing and Switching:
Packet Guide to Voice over IP:
Network Engineering Fundamentals:
Advanced Network Engineering:
Virtualization, Networking, and Storage:
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