Last Modified: May 29, 2024
Affected Product(s):
F5OS Velos
Known Affected Versions:
F5OS-C 1.3.0, F5OS-C 1.3.1, F5OS-C 1.3.2, F5OS-C 1.5.0, F5OS-C 1.5.1
Fixed In:
F5OS-C 1.6.0
Opened: Dec 09, 2022 Severity: 3-Major
An interface that is down or disabled can cause dropped packets on another port due to internal congestion. This leads to bi-directional packet loss that affects tenants. The packet drops due to VOQ congestion can be seen in the vqf_voq tmctl table in the cos_fill_drop column.
Congestion occurs, which causes packet loss that also affects tenants.
VELOS chassis. One or more interfaces on a blade in a partition is down or disabled. Packets generated internally like lldp packets being sent to a down or disabled interface.
The mitigation is to disable sources of internally generated packets which are sent to a down or disabled interface. This can be done by disabling LLDP on a down or disabled interface.
This change will disable queueing packets to a down or disabled interface queue. This will prevent the internal congestion and dropped packets.