PLANET IGT-1205AT - Manual (Page 22)

22
Note
Never pull out the module without pulling the lever or
the push bolts on the module. Directly pulling out the
module with violence could damage the module and SFP
module slot of the Industrial Gigabit Media Converter.
2.1.7 Redundancy Overview
The Industrial Gigabit Media Converter 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.
Main Primary
Backup
Redundancy
< Primary Port >
Link Status : Up
Traffic Flow : Forwarding
< Backup Port >
Link Status : Down
Traffic Flow : Blocking
Main Primary
Backup
Redundancy
< Primary Port >
Link Status : Down
Traffic Flow : N/A
< Backup Port >
Link Status : Up
Traffic Flow : Forwarding
Traffic is changed from Primary-Port to Backup-Port
Figure 2-5: Redundancy Behavior Topology
Link status auto detect and redundant on Dual ports with same l
connector type.
Only Primary-Port is active at a time, the Backup-Port is blocked.
l
When Primary-Port link failure occurs, the traffic will swap to Backup- l
Port automatically.
Once the Primary-Port status is back to link up, the traffic will swap
l
from Backup-Port to Primary-Port.