When using a media converter without LFP function in a Turbo Ring, if one of the media converter’s links fails, then the second link will not be forced to shut down. As a result, Turbo Ring is unable to detect the break between the switches and the redundant path will not be used.
In order to get the Turbo Ring protocol work correctly, use media converters with LFP function (Link Fault Pass-through).
When using a media converter without LFP function in a Turbo Ring, if one of the media converter’s links fails, then the second link will not be forced to shut down. As a result, Turbo Ring is unable to detect the break between the switches and the redundant path will not be used.
In order to get the Turbo Ring protocol work correctly, use media converters with LFP function (Link Fault Pass-through).
When a media converter features LFP function, it becomes possible to trace back the link failure on a fiber line, as a copper port which connects the media converter directly to the switch fails too. In this case, the switch will be able to detect a problem and to activate the transmission over the redundant path.
Providing a media converter does not feature LFP function, the link for the twisted-pair cable port will remain “on” and the problem can not be localized remotely.
