I encounter a network problem. My clients can ping the Oracle ERP server but experience frequently session timeout when access to the ERP application.
I have configured two port channel to the oracle switches and the two port-channel are configured in the same setting.
I have found that message in the cisco siwtch log,%SW_MATM-4-MACFLAP_NOTIF: Host 0010.e05c.ac14 in vlan 3 is flapping between port Po4 and port Po5
(core switch)
Running config on cisco core switch:
interface
Port-channel4
description To Oracle Switch 2
switchport mode trunk
!
interface
Port-channel5
description To Oacle Switch 1
switchport mode trunk
!
interface GigabitEthernet1/0/11
description To Oracle switch 1
switchport mode trunk
channel-group 5 mode active
!
interface GigabitEthernet1/0/12
description To Oracle Switch 2
switchport mode trunk
channel-group 4 mode active
!
interface GigabitEthernet2/0/11
description To Oracle switch 1
switchport mode trunk
channel-group 5 mode active
!
interface GigabitEthernet2/0/12
description To Oracle Switch 2
switchport mode trunk
channel-group 4 mode active
!
How can I deal with the mac address flapping problem? I appreciate any suggestions and response:)