topic Re: C9105AXI-EWC-E-RF, flapping between AP in Wireless

C9105AXI-EWC-E-RF, flapping between AP

philippe pons — Wed, 12 Nov 2025 09:30:15 GMT

Hi,

I have flapping between AP, version 17.12 for controller.

*Nov 4 17:27:48.579: %SW_MATM-4-MACFLAP_NOTIF: Host 286b.354a.51a5 in vlan 100 is flapping between port Gi1/0/37 and port Gi2/0/38

What can I do to resolve this problem?

Re: C9105AXI-EWC-E-RF, flapping between AP

balaji.bandi — Wed, 12 Nov 2025 09:34:04 GMT

What is VLAN 100? What are the ports connected to?

Depends on the network you have - sometimes we see these messages when the client is roaming - this is normal

until you have any other network underlay issue.

Re: C9105AXI-EWC-E-RF, flapping between AP

Mark Elsen — Wed, 12 Nov 2025 09:41:17 GMT

- @philippe pons It's a client roaming between access points ; the particular message can be ignored

Re: C9105AXI-EWC-E-RF, flapping between AP

philippe pons — Wed, 12 Nov 2025 09:48:39 GMT

Hi,
@ mac is customer WiFi. It's between to ap.
I have same problem between another customer Wifi and another AP:

*Nov 4 17:27:48.579: %SW_MATM-4-MACFLAP_NOTIF: Host 286b.354a.51a5 in vlan 100 is flapping between port Gi1/0/37 and port Gi2/0/38
*Nov 4 17:34:14.060: %SW_MATM-4-MACFLAP_NOTIF: Host 7413.eab9.5492 in vlan 100 is flapping between port Gi4/0/39 and port Gi2/0/37
##
*Nov 5 09:44:27.359: %SW_MATM-4-MACFLAP_NOTIF: Host 8cf8.c5a0.14e6 in vlan 100 is flapping between port Gi4/0/39 and port Gi1/0/39
*Nov 5 09:44:29.701: %SW_MATM-4-MACFLAP_NOTIF: Host 286b.354d.1bba in vlan 100 is flapping between port Gi4/0/39 and port Gi1/0/39
*Nov 5 09:56:16.732: %SW_MATM-4-MACFLAP_NOTIF: Host d2a5.59b0.2445 in vlan 100 is flapping between port Gi1/0/48 and port Gi2/0/38
*Nov 5 09:59:48.519: %SW_MATM-4-MACFLAP_NOTIF: Host a6da.10ca.ec05 in vlan 99 is flapping between port Gi4/0/41 and port Gi1/0/48
##
AP connected on stack:
1/0/37-42
2/0/37-42
3/0/37-42
4/0/37-42
AP Wifi
#
Trunk
(140), 99, 100, 110
#
?
#
WIFI_GUEST
Vlan 99
WIFI_GUEST
Oui
Oui
Oui
Oui
EAP_TLS
Vlan 100
EAP_TLS
Oui
Oui
Oui
Oui