Last Modified: Jul 12, 2023
Known Affected Versions:
14.1.0, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 15.0.0
15.1.0, 15.0.1, 220.127.116.11
Opened: Apr 29, 2019 Severity: 1-Blocking
-- Lower throughput and tps. -- High availability (HA) heartbeat is getting dropped, resulting in an active-active configuration.
Performance degradation and invalid HA configuration.
AWS Elastic Network Adapter (ENA) NIC is in use.
On the BIG-IP system, turn off checksum offloading in on TX as follows: modify sys db tm.tcpudptxchecksum value Software-only Important: This workaround negatively affects NICs other than ENA. Therefore, the workaround is recommended exclusively when ENA is the only dataplane NICs in use in the BIG-IP system.
AWS ENA: no packet drops due to bad checksum.