Page 44 - 2023-ORing_Guidebook-ok(電子書轉檔用)

ORing's Hardware Bypass redundancy technology naturally and effectively avoids single-point power failure in daisy
chain topology or multi-point power failures . For conventional wired Ethernet network, there is the Copper Interface
Bypass. An ORing Ethernet switch with Copper Interface Bypass would have 2 of the Ethernet ports designated as the
bypass path. Under normal circumstances, these ports would function just like any other ports. However, when one of
the switches in the loop loses power, the internal bypass circuit will connect the two bypass ports to pass the traffic on
to other active switches.

Copper Interface Bypass - TES series

Normal Communication

Single point power failure activate bypass mechanism

X

Hardware Bypass: Redundancy technologies are great for network topologies. When one node fails, the system
quickly finds another path and continues to run again. However, if two or more nodes fail in a ring structure, or if one
node fails in a daisy chain structure, the network will be irrecoverable until the node problems are solved.

X Reachable Reachable

X Ring
Reachable
X

Not Reachable!!!

Not Reachable!!!
Not Reachable!!!

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