Last Modified: Apr 28, 2025
Affected Product(s):
F5OS Velos
Fixed In:
F5OS-A 1.1.0
Opened: Dec 08, 2021 Severity: 3-Major
The MAC address assigned to the macvlan interface mgmt0-system may also be assigned to a dataplane object: a lag or a tenant.
If the management interface mgmt0-system and the lag or tenant are on the same broadcast domain, both devices will have communication problems. Duplicate MACs going to different switches will be fine.
More than 233 lags or tenants are configured on a r10000 or r5000 platforms.
The MAC address that will be duplicated is 0xfc offset from the basemac. If a tenant or lag has been assigned basemac+0xfc remove the tenant or lag, reduce the number of lags + tenants to less than 252, then re-create the tenant or lag - checking to make sure the assigned MAC does not use offset 0xfc from the base MAC.
The pool of available MAC addresses to be used for tenants or lags on r10000 is 220, and for r5000 is 236.