Cluster
For High Availability
DDOS Protection support high availability, for two compatible DDoS Protector devices to operate in Active – Active, Active – Passive, Cluster mode.
How To Use:
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Stack > Instance > Instance Name > HA
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User can configure as per requirement
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Click on Save Settings
| Settings | Accepted Values | Defaults |
|---|---|---|
| Primary Instance | String | -- |
| HA Mode | Drop Down | None |
| HA Port | Integer | 11211 |
| Peer check Interval | Integer | 2 |
| Peer failure threshold | Integer | 2 |
| Peer recovery threshold | Integer | 1 |
| Max Allowed Flaps | Integer | 6 |
| Enable Bandwidth Monitoring | Boolen | False |
| Minimum Bandwidth | Integer | 1024/10 |
| Link Monitoring Interval | Integer | 100 |
| Minimum Active links | Integer | 0 |
Description:
Primary Instance
Specify the default instance from the drop-down that will have an active mode on start-up
HA Mode
Specify the high availability mode between multiple mitigation instances
HA Port
Specify port over which mitigation instances communicate with each other
Peer check interval
Specify the time (in sec) after which one mitigation instance checks the health of its peer
Peer failure threshold
Specify the number of failed peer health checks after which a mitigation instance considers its peer unhealthy
Max allowed steps
In some situations, two mitigation instances may Allowed keep changing their state from active to inactive. A Flaps flap is counted when the instance leaves the active state. This can result in poor network performance and can disrupt normal traffic flows. Specify allowed number of flaps after which the primary instance goes into hardware bypass
Enabled Bandwidth Monitoring
Specify if bandwidth monitoring should be used to trigger fail over in the HA cluster
Minimum Bandwidth
Specify minimum bandwidth (in bps) for a specified interval (in sec) below which fail-over is triggered
Link monitoring interval
Specify the interval in milliseconds (ms) for periodic link monitoring between multiple mitigation instance
Minimum Active Links
Specify the minimum allowed active link pairs below which the solution will mark itself down