Network connection problems - IBM BladeCenter HS23

Use this information to diagnose and resolve network connection errors.

IBM updates the support website with the latest tips and techniques that you can use to resolve any problems. Go to the BladeCenter support search website at http://www.ibm.com/supportportal/ to see if any service bulletins have been generated. In the Search field, type 7875, retain tip, and chassis.

Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. The blade server connects to the network by using shared BladeCenter unit resources. See the following table and Solving shared BladeCenter resource problems.

See Parts listing to determine which components are consumable, structural, or CRU parts. If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained technician.
One or more blade servers are unable to communicate with the network.	Check the function of the shared BladeCenter unit resources. See Solving shared BladeCenter resource problems). Make sure that: The correct device drivers are installed. See Updating firmware and device drivers. The Ethernet controller is correctly configured. See Configuring the Gigabit Ethernet controller. Optional I/O expansion cards are correctly installed and configured. See Installing an I/O expansion card and Configuring the blade server. (Trained technician only) Replace the system-board assembly. See Removing the system-board assembly and Installing the system-board assembly.

See Parts listing to determine which components are consumable, structural, or CRU parts.
If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained technician.

Symptom

Action

One or more blade servers are unable to communicate with the network.

Check the function of the shared BladeCenter unit resources. See Solving shared BladeCenter resource problems).
Make sure that:
- The correct device drivers are installed. See Updating firmware and device drivers.
- The Ethernet controller is correctly configured. See Configuring the Gigabit Ethernet controller.
- Optional I/O expansion cards are correctly installed and configured. See Installing an I/O expansion card and Configuring the blade server.
(Trained technician only) Replace the system-board assembly. See Removing the system-board assembly and Installing the system-board assembly.