Bug ID 1928829: Egress traffic is being dropped by upstream switch following a reboot of rSeries.

Last Modified: Jul 11, 2025

Affected Product(s):
F5OS F5OS, F5OS-A(all modules)

Known Affected Versions:
F5OS-A 1.8.0

Opened: Apr 21, 2025

Severity: 2-Critical

Symptoms

Intermittently observed egress packets sent from the rSeries device through a specific port are discarded by the adjacent device.

Impact

Traffic on the affected port is completely dropped when the system comes up after a reboot. This includes the failure of all Layer 2 (L2) protocols, such as LACP, STP, and LLDP, along with tenant traffic.

Conditions

- r5000, r10000, or r12000-series appliance - Intermittently occurs when a link is brought up, for instance after multiple reboot attempts.

Workaround

An additional reboot helps to recover the system.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips