I have core switches in stack and those are connected to access stack using port channel. Configuration is as below. I have created VLAN 250 for RSPAN Purpose and configured same on both. Moment I enable monitoring session, I start receiving logs "SW_MATM-4-MACFLAP_NOTIF" and says hosts in VLAN 250 are flapping Between PO2 and PO3. I see lot of random mac address, there is no pattern, no repeated mac address, these logs only starts when monitoring session is enabled and not sure why it keeps referring to VLAN 250 which is solely created for RSPAN purpose. Please advise what might be going wrong here.
On Core Switch Pointing to Access Switch 101
interface Port-channel2
switchport mode trunk
storm-control action trap
!
interface TenGigabitEthernet1/0/5
switchport mode trunk
storm-control action trap
channel-group 2 mode on
spanning-tree portfast disable
spanning-tree bpduguard disable
!
interface TenGigabitEthernet2/0/5
switchport mode trunk
storm-control action trap
channel-group 2 mode on
spanning-tree portfast disable
spanning-tree bpduguard disable
From Access Switch101 Pointing back to Core switch
interface TenGigabitEthernet1/0/2
switchport mode trunk
spanning-tree portfast disable
spanning-tree bpduguard disable
channel-group 1 mode on
interface TenGigabitEthernet3/0/2
switchport mode trunk
spanning-tree portfast disable
spanning-tree bpduguard disable
channel-group 1 mode on
!
interface Port-channel1
switchport mode trunk
