We are using Ciena 5142 and 3930 series of switches. We have multiple bandwidth vendor that provide us with Jakarta-Singapore trunk on their submarine cable. We are using ciena on G.8032 feature to protect our network if anything breaks on the submarine vendor. We have found that the G.8032 failed to reroute to other link when there's problem with the main link, it will only backup to secondary link after we shutdown the port of primary link.
Anyone has experience on this?