Fujitsu PRIMEQUEST 1000 Series User Manual page 693

SVmco User Guide
For all physical interfaces, confirm that the communication path to the remote
host has no problems.
Severity:
Error
Action:
( / /T/S)
17011
GLS: Network error (some lines in operation (devicename))
Meaning:
Some physical interfaces bundled with a virtual interface operating in fast
switching mode are down (or up).
devicename = Virtual interface name
Corrective action:
For physical interfaces that are down, confirm that the communication path to
the remote host has no problems.
Severity:
Error
Action:
( / /T/S)
685