Solved

HP switch and vlan

Posted on 2014-04-04
6
678 Views
Last Modified: 2014-04-07
Hi Experts,

can you explain the following for a vlan on a HP switch ?

What is :

tagged mode
untagged mode
forbid mode
0
Comment
Question by:Eprs_Admin
  • 3
  • 3
6 Comments
 
LVL 50

Assisted Solution

by:Don Johnston
Don Johnston earned 500 total points
ID: 39978158
Tagged means the port can send/receive traffic for multiple VLANs. Before sending, the ethernet frames are "tagged" with the VLAN number so the receiving switch will know what VLAN a particular frame is a member of.

Untagged means the port can only send/receive traffic for one specific VLAN.

Forbid is used in a GVRP environment where VLANs are dynamically added. It prevents a VLAN from being added to a port.  If you're not doing GVRP, then forbid mode is unnecessary.
0
 

Author Comment

by:Eprs_Admin
ID: 39978216
is tagged also a trunk port ?
0
 
LVL 50

Accepted Solution

by:
Don Johnston earned 500 total points
ID: 39978259
That depends on which vendor's terminology you're using. :-)

In HP parlance, a "trunk" is two or more links that are aggregated together (what Cisco calls etherchannel).

HP referrers to a link carrying multiple VLANs as a "tagged" or "tagging" port (what Cisco calls a trunk).
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 

Author Comment

by:Eprs_Admin
ID: 39982218
on my HP series I 4208 I have the same, tagged and untagged....
I need to make a trunk of some ports.
With Cisco this is easy with the trunkport config
0
 
LVL 50

Expert Comment

by:Don Johnston
ID: 39982758
Please post the config and explain which ports and which VLANs we're talking about.
0
 

Author Comment

by:Eprs_Admin
ID: 39982767
I did it without vlan and trunks.
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

If your business is like most, chances are you still need to maintain a fax infrastructure for your staff. It’s hard to believe that a communication technology that was thriving in the mid-80s could still be an essential part of your team’s modern I…
Most of the applications these days are on Cloud. Cloud is ubiquitous with many service providers in the market. Since it has many benefits such as cost reduction, software updates, remote access, disaster recovery and much more.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

776 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