Checking physical networks

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You should check your physical networks and connections.

Checkpoints for investigating physical connections include:

  • Check the serial line between each pair of nodes.
  • If you are using Ethernet:
    • Use the diag command to verify that the network interface card and cables good.
    • Ethernet adapters for the IBM® System p™ can be used either with the transceiver that is on the card or with an external transceiver. There is a jumper on the NIC to specify which you are using. Verify that your jumper is set correctly.
    • Make sure that hub lights are on for every connected cable.