Configuring the IPFE

The Configuration Options fields set up data replication between IPFEs, specify port ranges for TCP traffic, and set application server monitoring parameters.

Select Configuration > Options.

The IPFE Configuration Options page appears. Field descriptions are provided by Configuration Options elements.
Under the Inter-IPFE Synchronization section complete the following entries:
1. Enter the IP addresses for IPFE-A1, IPFE-A2, IPFE-B1, and IPFE-B2 in the corresponding IPFE-Xn IP Address field.
  
  These are internal addresses used by the IPFEs to replicate association data. These addresses should reside on the IMI (Internal Management Interface) network.
2. Select the State Sync TCP Port used for syncing kernel state between IPFE.
3. Set the State Sync Reconnect Interval for syncing kernel state between IPFE.
4. Select the type of Gratuitous ARP Type broadcast to send.
Under the Traffic Forwarding section complete the following entries:
1. If not application servers are available, select how to reject TCP connections in theApplication Traffic TCP Reject Option pull down box.
2. If not application servers are available, select how to reject SCTP connections in theApplication Traffic SCTP Reject Option pull down box.
Under the Packet Counting section complete the following entries:
1. Set a value for Imbalance Detection Throughput Minimum.
  The default setting is 2000 and should not be changed from its default unless the IPFE is being tested with a very low load.
2. Set a value for Least load Threshold.
  This value can be set to a packets-per-second rate below which the Least Load algorithm reverts to round robin.
3. If you want the support for cluster rebalancing and packet accounting in measurements, select Enabled from the pull down menu in the Cluster Rebalancing and Accounting field.
  When this is disabled, all accumulation of packet and byte measurements cease.
Under the Application Server Monitoring section complete the following entries:
1. Set a value for Monitoring Port
  The application server must listen on this port and should send heartbeats.
2. Set the wait time for a connection to complete when polling the application servers for aliveness in the Monitoring Connection Timeout field
3. Set the interval for periodically connecting to application servers to test for aliveness in the Monitoring Connection Try Interval field.
4. If you want to monitor the liveness of application servers, select Heartbeat in the Monitoring Protocol field.
  If any Target Set has load balancing of Least Load then this setting cannot be changed from Heartbeat due to the need for load information in the monitoring packets.
Under the Throttling and DoS protection section complete the following entry:
1. Set the overload throttling in the Global Packet Rate Limitfield. combined packet rate limit for a single IPFE at which is applied.
Click:
- OK to save your changes.
- Apply to apply your changes. The changes will go into effect immediately.
If OK or Apply are clicked and any of the following conditions exist, an error message appears:
- Any required field is empty; no value was entered or selected
- The entry in any field is not valid (wrong data type or out of valid range)
- An IP address is assigned to more than one IPFE.
- An IP address is assigned to an IPFE, but is already used as a Target Set Address
- An IP address is assigned to an IPFE, but is already used as the address of an Application Server

For the IPFE to be fully functional, you must assign application servers to a Target Set and associate the Target Set with the IPFE. See Adding a Target Set.