Featured Functions |
Turbo Ring and STP/RSTP cannot both be used on the network at the same time. The following table lists the key differences between each feature. Use this information to evaluate the benefits of each, and then determine which features are most suitable for your network.
| Turbo Ring | STP | RSTP |
Topology | Ring | Ring, Mesh | Ring, Mesh |
Recovery Time | < 300 ms | Up to 30 sec. | Up to 5 sec |
Gigabit Ethernet Redundant Ring Capability (< 300 ms)
Ethernet has become the default data communications medium for industrial automation applications. In fact, Ethernet is often used to integrate video, voice, and
NOTE | Port trunking and Turbo Ring can be enabled simultaneously to form a backbone. Doing so will |
| increase the bandwidth of the backbone, and also provide redundancy. For example, suppose that |
| two physical ports, 1 and 2, are trunked to form trunk group Trk1, and then Trk1 is set as one |
| Turbo Ring path, if port 1 gets disconnected, the remaining trunked port, port 2, will share the |
| traffic. If port 1 and port 2 are both disconnected, Turbo Ring will create the back up path within |
| 300 ms. |
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The Turbo Ring Concept
The proprietary Turbo Ring protocol was developed by MOXA to optimize communication redundancy and achieve a faster recovery time on the network.
Turbo Ring protocol identifies one switch as the “master” of the network, and then automatically blocks packets from traveling through any of the network’s redundant loops. In the event that one branch of this ring gets disconnected from the rest of the network, the Turbo Ring protocol automatically readjusts the ring (if possible) so that the part of the network that was disconnected reestablishes contact with the rest of the network.