Symptom
A device conected to any of the gigabitEthernet ports is not learnt on the sw mac address table
Conditions
HW: 3 x C9300X-48HX-A in stack
SW: 17.9.3
dot1x and mab confgurations in place
description ***** XXXXXXXXX *****
switchport access vlan XX
switchport mode access
switchport voice vlan XX
device-tracking
ip access-group xxxx in
authentication event fail action next-method
authentication event server dead action authorize vlan XX
authentication event server dead action authorize voice
authentication event server alive action reinitialize
authentication host-mode multi-auth
authentication open
authentication order mab dot1x
authentication priority dot1x mab
mab
snmp trap mac-notification change added
snmp trap mac-notification change removed
trust device cisco-phone
dot1x pae authenticator
auto qos voip cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
service-policy input AutoQos-4.0-CiscoPhone-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
