?
Solved

Mixing VLAN tag ports and unmanaged switches - will it work?

Posted on 2008-11-10
3
Medium Priority
?
1,081 Views
Last Modified: 2012-06-21
Bit of an off-the-wall question really.

Customer has a gigabit backbone (pair of Cisco C3760G switches) and a number of NetGear unmanaged gigabit switches connected into them.

Question is, if they configure the Cisco ports  that connect to a Netgear as trunk ports, would the hosts on the Netgear switches be able to communicate using tagged frames, or would the frames just end up going nowhere as the Netgear switches are unmanaged and wouldn't understand/strip the tag off ?

Thanks.
0
Comment
Question by:DanielGould
  • 2
3 Comments
 
LVL 21

Accepted Solution

by:
from_exp earned 150 total points
ID: 22928227
hi!
The question is: do netgears support frames large enough to transmit tagged packets.
If yes, then you can configure your pc with tag and you will be able to receive tagged packets through netgear.
However, this solution is not recommended, because vlans are not actually separated within unmanaged switch, so someone can try to spoof it's tag and get access to any vlan....
0
 
LVL 1

Author Comment

by:DanielGould
ID: 22929378
I believe the Netgear switches will handle the frame size, so it should be possible. They have a farm of ESX servers connected to the Netgear switches and want more redundancy rather than security, but can't afford the cost of replacing the 30+ netgear switches with Cisco units. So this was the solution they tabled to us for us to evaluate and implement. I guess I'll go set it up in my lab now and have a play :-)

Thanks for the input.
0
 
LVL 1

Author Closing Comment

by:DanielGould
ID: 31515201
Thanks for the input. I'll go test it and post an update if it all works as we expect it to.
0

Featured Post

[Webinar] Cloud and Mobile-First Strategy

Maybe you’ve fully adopted the cloud since the beginning. Or maybe you started with on-prem resources but are pursuing a “cloud and mobile first” strategy. Getting to that end state has its challenges. Discover how to build out a 100% cloud and mobile IT strategy in this webinar.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
This article will show how Aten was able to supply easy management and control for Artear's video walls and wide range display configurations of their newsroom.
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …
Screencast - Getting to Know the Pipeline
Suggested Courses

850 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question