Moxa Technologies EDS-405A User Manual download pdf (Page 38)

EDS-405A/408A Series User’s Manual Featured Functions

3-21

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.

The Turbo Ring Concept

Moxa developed the proprietary Turbo Ring protocol to optimize communication redundancy and

achieve a faster recovery time on the network.

The Turbo Ring and Turbo Ring V2 protocols identify one switch as the master of the network,

and then automatically block packets from traveling through any of the network’s redundant loops.

In the event that one branch of the ring gets disconnected from the rest of the network, the protocol

automatically readjusts the ring so that the part of the network that was disconnected can

reestablish contact with the rest of the network.

Initial setup of a “Turbo Ring” or “Turbo Ring V2” ring

1. For each switch in the ring, select any two

ports as the redundant ports.

2. Connect redundant ports on neighboring

switches to form the redundant ring.

The user does not need to configure any of the switches as the master to use Turbo Ring or Turbo

Ring V2. If none of the switches in the ring is configured as the master, then the protocol will

automatically assign master status to one of the switches. In fact, the master is only used to

identify which segment in the redundant ring acts as the backup path. In the following subsections,

we explain how the redundant path is selected for rings configured for Turbo Ring, and Turbo

Ring V2.

Determining the Redundant Path of a “Turbo Ring” Ring

In this case, the redundant segment (i.e., the segment that will be blocked during normal operation)

is determined by the number of EDS units that make up the ring, and where the ring master is

located.

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 111 112

No comments

Moxa Technologies EDS-405A User Manual Page 38