<div>
Corin, what you are saying is I can do this...<br />
<br />
Switch A<br />
**********<br />
Vlan2 tag &nbsp;1-20<br />
vlan3 tag 1-20<br />
<br />
Switch B<br />
**********<br />
vlan2 tag 1-20<br />
vlan3 tag 1-20
</div>


Corin, what you are saying is I can do this...

Switch A
**********
Vlan2 tag  1-20
vlan3 tag 1-20

Switch B
**********
vlan2 tag 1-20
vlan3 tag 1-20

<div>
Keep in mind that you must also create the corresponding tag mapping on the Core Switch, and possibly on the firewall - unless you use different firewalls/routers for each of the VLANs.
</div>


Keep in mind that you must also create the corresponding tag mapping on the Core Switch, and possibly on the firewall - unless you use different firewalls/routers for each of the VLANs.

<div>
<div class="content wysiwyg-content">
I'm having some problems understanding vlans.<br />
I made up a schematic. Please see attached.<br />
Does that all look right?<br />
<a href="https://filedb.experts-exchange.com/incoming/2014/10_w41/876015/vlan.pdf" target="_blank" class="file-inline" title="vlans (14 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>vlan.pdf</a>
</div>
</div>


vlan.pdf

I'm having some problems understanding vlans.
I made up a schematic. Please see attached.
Does that all look right?

More on vlan

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.

Switches / Hubs

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.