Description This article describes that if a unit is learned on a port with sticky MAC enabled, the same unit MAC address will not be learned on different port unless sticky MAC entry is cleared.
Solution Make dynamically learned MAC addresses persistent when the status of a FortiSwitch port changes(goesdownorup). By default, MAC addresses are not persistent. Once the entry is learned dynamically by the FortiSwitch, a sticky MAC entry is treated much like a Static MAC entry. For either Sticky or Static MACs, delete the corresponding entry before it can be re-associated with another port.
For Example. - Sticky-Mac is enabled on port19 and learning limit is set to 1.
Standalone-FSW # sh switch interface port19 # config switch interface edit "port19" set native-vlan 165 set snmp-index 19 set learning-limit 1 set sticky-mac enable next end
Before sticky-MAC is enabled:
S124EF4N17-----8 # diagnose switch mac-address list | grep "e4:b9:7a:58:97:17" MAC: e4:b9:7a:58:97:17 VLAN: 165 Port: port19(port-id 19) Flags: 0x00030440 [ hit dynamic src-hit native move] After Sticky-MAC is enabled: S124EF4N17-----8 # diagnose switch mac-address list | grep " e4:b9:7a:58:97:17" MAC: e4:b9:7a:58:97:17 VLAN: 165 Port: port19(port-id 19) Flags: 0x00000020 [ static ]
To delete the sticky MAC entry. If the sticky-mac save command has not been issued since the entry was learned on port19, clear the entry with:
If the sticky MACvwas saved (# execute sticky-mac save {all|interface<interface_name>}), view the table from GUI under MAC Entries and delete the entry corresponding to that unit. Once the entry has been removed, unit can be relearned on a different port.
