Bug ID 1326021: Corrupted state of data plane in r5600 can result in egress packet corruption

Last Modified: Jul 18, 2024

Affected Product(s):
F5OS Velos(all modules)

Known Affected Versions:
F5OS-A 1.5.0, F5OS-A 1.5.1, F5OS-A 1.5.2

Opened: Jul 31, 2023

Severity: 3-Major

Symptoms

Networking connectivity issues, such as ARP resolution issues, high availability (HA) failures, health monitor instability, etc. Packet captures with Wireshark or tshark can be used to show bit-errors/corruption in the network packet for traffic passing through the data plane. This corruption can occur in various parts of the packet such as the MAC address, EtherType, packet checksums, etc. Corresponding spike in bad_ifh_crc_drop counter value.

Impact

Network connectivity problems on some traffic passing through the affected data plane. Could be reflected in the status of Config Sync or more health monitors down on one member of HA pair.

Conditions

Rare condition that can affect r5600 platform.

Workaround

Reboot the r5600 to reload the bitfile. If the bitfile reload does not resolve the issue, then its most likely a hardware issue. Please work with Support on a RMA.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips