Networking & Wireless forum


NIC Teaming

by girish_networking / November 16, 2012 6:13 PM PST

Hi friends.

I have a workstation Dell T3500 with 2 NIC cards installed.
We are using Broadcom Advanced Server Program for teaming both NIC cards on one IP address.

It has been observed that both LAN Connection is enabled,but status(send/receive) of only one LAN connection is updating, whereas the traffic(sent/receive) on another LAN connection established is zero.

Also the icon of LAN connection looks like disabled,but it show's enabled at the bottom.

Kindly Advice


Answer This Ask For Clarification
Discussion is locked
You are posting a reply to: NIC Teaming
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: NIC Teaming
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.

All Answers

Collapse -
Never found it to help when.
by R. Proffitt Forum moderator / November 17, 2012 1:48 AM PST
In reply to: NIC Teaming

When the cards are on the same LAN it never helped even a little. Since traffic at the lowest level is sent by MAC address what did you do to get traffic to that other NIC?

Sorry if that's a hard question but you are going where users rarely go.

Collapse -
by bill012 / November 18, 2012 8:52 PM PST
In reply to: NIC Teaming

Its hard to make this work on a server. This feature works better to combine links between core switches.

The worst case that you cannot fix is if the traffic is going back and forth between 2 machine. 802.3ad does not have the ability to load balance traffic it will pick a path based on a combination of mac addresses and ip addresses. Since 2 machines will always have the same ip and mac addresses the traffic will always pick only a single path. It sometime even pick a different path for inbound and outbound but it will always use a single path.

It depends on how your network is structured and how you have this feature configured. You have some option to change which mac and ip it uses. There are some that by default only use only mac addresses which in a routed network means all traffic uses the gateway mac and the machine mac so you only get a single path utilized even for traffic coming from multiple machines.

Collapse -
by R. Proffitt Forum moderator / November 19, 2012 2:12 AM PST
In reply to: 802.3ad

"This feature works better to combine links between core switches."

Every once in awhile we see folk try this on a LAN.

Collapse -
by joekingsley / November 27, 2012 8:46 PM PST
In reply to: Thanks!

This feature works better no doubt about that but could you tell us that how they can create a folk.When I am set up this process no folk has been formed on LAN.Could you justify it ?

Collapse -
No I can't justify NIC teaming on a LAN.
by R. Proffitt Forum moderator / November 28, 2012 1:43 AM PST
In reply to: Folk

Such folk that try this tend to get all tied up in knots.

Popular Forums
Computer Help 49,613 discussions
Computer Newbies 10,349 discussions
Laptops 19,436 discussions
Security 30,426 discussions
TVs & Home Theaters 20,308 discussions
Windows 10 360 discussions
Phones 15,802 discussions
Windows 7 7,351 discussions
Networking & Wireless 14,641 discussions


CNET bought a house!

Take a look inside the house where we will be testing connected locks, thermostats and other smart home products so we can tell a complete story.