TGPS-9164GT-M12 Series User
Manual
ORing Industrial Networking Corp
24
Figure 2
4.4.2 Bypass & Ring Topology
Bypass provides redundancy during device failure and O-Ring provides redundancy when
links are broken. Together the two will provide users with dual protection when links and
devices are broken.
In a ring topology where switches are not bypass-enabled, the backup link will be activated
immediately when one of the links is down, thereby ensuring uninterrupted data transmission.
However, if any inline device fails, the network will be disconnected (see below).
By using bypass-enabled switches in a ring topology, data will continue to flow to the next
active switch through the same route when one or more inlay devices fail. Data will bypass the
inactive switches during transmission as if they do not exist. In this case, the backup path will
remain inactive and the ring topology will remain unchanged (see below).
