PLANET GT-1205A - Manual (Page 15)

15
Redundancy Overview
The GT-1205A provides rapid fiber redundancy of link for highly
critical Ethernet applications. The redundant-mode supports
auto-recover function. If the destination port of a packet is link
down, it forwards the packet to the other port of the backup
pair. The following figure shows the redundant function.
Figure 2-4-2: Redundancy Behavior Topology
Link status auto detect and redundant on Dual ports with l
same connector type.
Only Primary-Port is active at a time, the Backup-Port is l
blocked.
While Primary-Port link fail occur, the traffic swap to Backup- l
Port automatically.
Once the Primary-Port status back to link up, the traffic swap l
from Backup-Port to Primary-Port.