I am a relatively new network manager, and I am trying to create a new VLAN, but I can't seem to find any documentation that applies to my network. I have a core switch (a 6400) which I can log into in the web interface and see all of the VLANS and there is a '+' control at the top of the window, but I can't find any documentation anywhere that tells me how to use the interface and I'm leery of just blundering around! I'm find with the CLI, too, but I don't know how to find the commands.
Here's the task: Our food service company has their own firewall and switch in our dining hall. It's located in the student union IDF closet and is a simple setup. Their firewall is plugged into a port on my switch, and that port is native to our campus' VLAN 3, which is basically just an unobstructed path out to the internet. That firewall then leads to their managed switch and all of this is bolted into one rack. Then they have various jacks throughout the building, and then on the patch panel the jacks that go on their network are patched to their switch.
This works great, except that they run two coffee shops in two other campus buildings, and they need to be able to reach their switch from those jacks which are far away.
I know how this should work, because I've got other similar use cases on campus. Those were set up before my time, though!
What I need is to set up another VLAN in my core, which I want to call VLAN 810*
Once I have the VLAN, I need three 810-native ports on three of my switches. The first of these will be another port in my building switch where their firewall is already connected to that native VLAN 3 port. The 810 port will be hooked into one of the ports on their switch that's behind their firewall. I'm a visual person, here's a picture:
In the campus switch, port 10 is native VLAN 3, and I want to make port 20 be the native to my newly created VLAN 810. Then I hook one of the ports in their switch (I used 17 in the picture) to my port 20. (In this picture the port 10 to firewall to Aramark switch is showing what's already hooked up. What I'm adding is the connection back.)
Then in the other 2 buildings, I put 810 on one port in each of the 2 building switches, patch the cash registers into those ports, and voila! those two cash registers are connected to the Aramark switch which is behind the Aramark firewall and under their control.
As I understand this, I need to
- create VLAN 810 in the core, which is 10.10.x.1
- figure out what core ports go to each of my 3 building switches, which are 10.10.x.79, x.11, x.24 and add VLAN 810 to their trunks (Does that happen at the core or at the settings of the uplink port on each building switch?)
- make port 20 in 10.10.x.79 be native VLAN 810 -- I know how to do this
- choose a port on 10.10.x.11 and 10.10.x.24 and make those native VLAN 810 -- I know how to do this
BUT at the same time, I do NOT need to set up routing for the VLAN, because that needs to be controlled by their switch. (I'm not even sure what their router is -- I know it's 192.168.something.something...)
Can somebody point me to some step-by-step instructions on the core (first choice CLI, second choice web interface)?
And then any instructions on the building switches beyond changing a port to be native to a VLAN, as I know how to do that. (two are Alcatel-Lucent OS6850E, one is an HPE1920)?
I'm hoping that some detailed step-by-step instructions might help some future searching netadmin, too!
*(My VLAN that is upstream to their firewall is VLAN 3. Our food service is Aramark. This is a link from VLAN 3 to Aramark. As in "3-2-A". The hex number 0x32a is 810 in decimal.)