Brabhu Hansen
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FailOver/Load balancing within single device with 2 Links(WIFI & Ethernet)
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Brabhu Hansen
06/15/2009 2:37 AM
post31703
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FailOver/Load balancing within single device with 2 Links(WIFI & Ethernet)
I am trying to implement the failover/load balancing mechanism, for the QNX device with both WIFI and Ethernet links.
For example, if the high priority WIFI links is down or not able to transmit data, I should be able to reroute via the
active Ethernet link. This should happen with out bring down the application’s which is currently active in
transmission (ttcp, ftp etc)
I am trying to solve the issue by using packet filter, by rerouting the failed link route to the active link.
I am facing following problem in rerouting,
-Not able to trigger a callback on link failure (ie, when ifconfig run0 down), using PFIL_IFNET flag
-Able to trigger a callback on link failure (ie, when ifconfig run0 delete), but even after altering the
packet header’s with active source and destination addresses, ttcp fails.
Is there any ready failover/load balancing mechanisms supported by QNX?
Any useful information on this will be helpful.
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