Bug ID 2150537: On r5xxx, multicast packets are replicated to unused ports causing invalid packet drops.

Last Modified: Jan 15, 2026

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

Known Affected Versions:
F5OS-A 1.8.3

Opened: Nov 10, 2025

Severity: 3-Major

Symptoms

On r5xxx systems, multicast packets are forwarded to unused ports of the crossbar switch, resulting in packet drops on those ports. Because the ports are unused, the drop counters are meaningless.

Impact

None, this is purely cosmetic.

Conditions

Multicast packets received on a front-panel interface.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips