[LU-11645] Fix sanity-sec test 31

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.0
• Affects Version/s: Lustre 2.12.0
• Labels: tests
• Severity: 3
• Assignee: Sebastien Buisson
• Reporter: Sebastien Buisson

Description

In sanity-sec test 31, the command to add a new LNet network ${NETTYPE}999
may fail if the servers or other clients have an interface name different from the one used
on the client running the test.
It is necessary to execute the command directly on the remote nodes with do_nodes.