Solved

Shared uplink between 2 vLAN's

Posted on 2012-03-23
3
850 Views
Last Modified: 2012-03-24
I have an hp switch with two vLAN's that are both untagged. I have a single fiber uplink going to another hp switch in another building that has the same two vLAN's.

Don't I have to tag one vLAN to share the same uplink? Is it possible to have both untagged vLAN's use the same single uplink?
0
Comment
Question by:nevtec
3 Comments
 
LVL 10

Accepted Solution

by:
mat1458 earned 250 total points
ID: 37760169
No, at least one VLAN has to be tagged on the uplink so the other switch can differentiate between the information of the two VLAN. But then it makes sense to tag both VLAN.

Tagging is no burden for a switch, its ASICs are built exactly for that.
0
 
LVL 17

Assisted Solution

by:jburgaard
jburgaard earned 250 total points
ID: 37760835
Just make sure to use same pattern in both ends of link connecting the 2 switches, like
port 26 UNtagged vlan 1, tagged vlan 2 connected to
port 25 UNtagged vlan 1, tagged vlan 2
OR
port 26 tagged vlan 1, tagged vlan 2 connected to
port 25 tagged vlan 1, tagged vlan 2
0
 

Author Comment

by:nevtec
ID: 37761693
Ok, thank you both. I wanted to make sure my understanding is correct.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

I see many questions here on Experts Exchange regarding switch port configurations and trunks. This article is meant for beginners in the subject to help to get basic knowledge about Virtual Local Area Network (VLAN (http://en.wikipedia.org/wiki/Vir…
This tutorial will go through the steps required to write a script that will back up the configuration settings of a HP-ProCurve switch. You will need to get the following things to follow this tutorial: Telnet Scripting Tool e.g. TST10.exe …
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…

831 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