Warning: Initial wait time extended by 30 seconds required by dellos10
[ping_red] Ping-based reachability test in VLAN red [ node(s): h1 ]
[WAITING]  Waiting for STP to wake up (retrying for 60 seconds)
[PASS]     h1: Ping to h2 (172.31.1.5) succeeded
[PASS]     Test succeeded in 16.2 seconds

[SUCCESS]  Tests passed: 1