Why is ifconfig giving me errors when I try to configure my LAN?

When I try to configure my lan device on my s700 I get the error
ifconfig: no such interface - why is that?

This is because the interface's hardware state is down. The s700 machines
need to be connected to a network before they can be configured with
ifconfig. Add the s700 machine to the network and then reset the
by running landiag (LAN->RESET). If no errors are reported, then you
should be able to ifconfig that interface.

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