Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4
Fixed In:
12.1.0
Opened: Apr 15, 2015 Severity: 2-Critical
Provide firmware and software EPVA FIX to support flow hash collision avoiding.
Flow hash collisions.
Offloading FIX connections to EPVA, which includes the following platforms: 10000, 10050, 10055, 10200, 10350, and 12050.
None.
New FPGA firmware and BIG-IP software have been designed to avoid and to predict the FIX flow hash collision. This provides extremely low rate of collision even at very high load in ePVA. A DB variable is used to configure a standard FPGA firmware or this enhanced FPGA firmware. BIG-IP automatically adapts its new function when the new FPGA firmware is loaded.
New FPGA firmware and BIG-IP software have been designed to avoid and to predict the FIX flow hash collision. This provides extremely low rate of collision even at very high load in ePVA. A DB variable is used to configure a standard FPGA firmware or this enhanced FPGA firmware. BIG-IP automatically adapts its new function when the new FPGA firmware is loaded. The DB variable is relevant only for LTM.