September 2015
Intermediate to advanced
608 pages
21h 29m
English
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The Native VLAN on a Trunk
From the output in the earlier example, we verified our trunk interfaces between the two switches. One option shown in the output was a native VLAN. By default, the native VLAN is VLAN 1. So, what does this mean, and why do we care? If a user is connected to an access port that is assigned to VLAN 1 on SW1, and that user sends a broadcast frame, when SW1 forwards that broadcast to SW2, because the frame belongs to the native VLAN (and both switches agree to using the same native VLAN), the 802.1Q tagging is simply left off. This works because when the receiving switch receives a frame on a trunk port, if that frame is missing the 802.1Q tag completely, the receiving switch assumes that the frame belongs to the native ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.