Forum Discussion
Esdras_de_Paz_1
Nimbostratus
Nimbostratusmaximum distance for network failover
Hi, I need to move some ltm that is currently in high availability, need to move them from site, but one by one, would like to know the maximum distance cable network to do the failover because the d...
rob_carr
Cirrocumulus
CirrocumulusUDP tiene que ser capaz de ir de un sitio a otro en menos de un segundo.
Physical failover is limited to 15m, due to attenuation. Network failover needs to have a one-way transit time of less than one second (or at least one heartbeat packet in three needs to transit in less than one second).
In the end, distance isn't really the factor, it's how long it takes UDP to propagate across your network. Measure that, and if it is reliably less than one second, you are close enough together to have network failover.
Hope that helps.
