BigIP 3400 nics negotiating down to 100Mb?

Hi Fletcher,

 

 

You've likely got an auto-negotiation issue. I would verify a couple of things:

 

 

1. First things first, make sure you have good patch cables. Gigabit ethernet needs all 8 wires (4 pairs) to link at a gig.

 

2. Verify that the BIG-IP is set for auto-negotiation (this is the default setting): SOL7612: Configuring the media speed and duplex settings for network interfaces

 

3. If you've got good cables and auto-negotiation correctly configured on the BIG-IP, then you'll need to look at your switch.

 

 

Hope that helps,

 

 

-George