Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3
Fixed In:
14.0.0, 13.1.0.4, 12.1.3.4
Opened: Sep 28, 2017 Severity: 3-Major Related Article:
K00026204
FDB flushing on VLAN deletes is performed by VLAN member interface reference only, without regard to VLAN tags. This can result in unrelated VLAN FDB entries also being flushed on shared VLAN member interfaces.
FDB entries for unrelated VLANs will be flushed if they share the same tagged VLAN member interfaces as the VLAN being deleted.
Issuing a VLAN delete with other VLANs using shared tagged member interfaces with the VLAN being deleted.
None.
Correct FDB flushing on VLAN deletes, by limiting the scope to be VLAN specific.