Hi,
Whenever I read about SRX manual failover, there is this special note:
"Be cautious and judicious in your use of redundancy group 0 manual failovers. A redundancy group 0 failover implies a Routing Engine (RE) failover, in which case all processes running on the primary node are killed and then spawned on the new primary Routing Engine (RE). This failover could result in loss of state, such as routing state, and degrade performance by introducing system churn. "
Im not sure what to understand of this. As understand it, this means there will be an interruption in the traffic: All sessions need to be re-established. But the last remark just gives me the chills, as it speaks about system churn. Im not a native English speaker and what I found churn means, is some state of degradation. That explanation is very unspecific and I imagine the worst :) .Does it mean that the negative impact of a manual failover of RG0 lasts beyond the brief impact on sessions that nbeed to be re-established? Does it last until I reboot the firewall?
I cant imagine it can be that bad, but I havent found any detailed explanation of what the impact will be when I failover RG0 and I would appreciate if someone with experience, please explain what actually happens.
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Peter Housen
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