I have a cluster, 2 nodes. There are repeating events id 25, every few second:
The MAC address 00-15-5D-AE-25-19 has moved from port 53A6AB28-EBD3-4F72-B690-69406077B8A7 (Friendly Name: vSwitchFN_External) to port 6D5ABBEF-0A8E-4F5D-8CC2-0871846CEF82 (Friendly Name: BCK).
The MAC address 00-15-5D-AE-25-18 has moved from port 53A6AB28-EBD3-4F72-B690-69406077B8A7 (Friendly Name: vSwitchFN_External) to port 9A8780F9-D931-4F85-B087-397A2F718C01 (Friendly Name: HB).
The MAC address 00-15-5D-AE-25-18 has moved from port 9A8780F9-D931-4F85-B087-397A2F718C01 (Friendly Name: HB) to port 53A6AB28-EBD3-4F72-B690-69406077B8A7 (Friendly Name: vSwitchFN_External).
The MAC address 00-15-5D-AE-25-19 has moved from port 6D5ABBEF-0A8E-4F5D-8CC2-0871846CEF82 (Friendly Name: BCK) to port 53A6AB28-EBD3-4F72-B690-69406077B8A7 (Friendly Name: vSwitchFN_External).
Config:
No NLB (MAC spoofing) on VMs.
PS C:\Users\pero> Get-NetLbfoTeam
Name : mgmt
Members : {M2, M1}
TeamNics : mgmt-624
TeamingMode : Lacp
LoadBalancingAlgorithm : Dynamic
LacpTimer : Fast
Status : Up
Name : vm
Members : {K2L1, K1L1}
TeamNics : vm
TeamingMode : Lacp
LoadBalancingAlgorithm : Dynamic
LacpTimer : Fast
Status : Up
PS C:\Users\pero> Get-VMNetworkAdapter -ManagementOS
Name IsManagementOs VMName SwitchName MacAddress Status IPAddresses
---- -------------- ------ ---------- ---------- ------ -----------
BCK True vSwitchFN 00155DAE2519 {Ok}
HB True vSwitchFN 00155DAE2518 {Ok}
SETswitchSMB2 True SETswitch 00155DAE250C {Ok}
SETswitchSMB1 True SETswitch 48DF371EFC2D {Ok}
LM True SETswitch 00155DAE250D {Ok}
PS C:\Users\pero> Get-VMSwitch
Name SwitchType NetAdapterInterfaceDescription
---- ---------- ------------------------------
vSwitchFN External Microsoft Network Adapter Multiplexor Driver #2
SETswitch External Teamed-Interface
PS C:\Users\pero> Get-VMNetworkAdapterVlan -ManagementOS
VMName VMNetworkAdapterName Mode VlanList
------ -------------------- ---- --------
SETswitchSMB1 Access 1980
LM Access 1981
HB Access 1044
BCK Access 887
SETswitchSMB2 Access 1979
PS C:\Users\pero> Get-NetAdapter
Name InterfaceDescription
ifIndex Status MacAddress LinkSpeed
---- --------------------
------- ------ ---------- ---------
mgmt-624 Microsoft Network Adapter Multiplexo... 6 Up F4-03-43-5C-75-91
2 Gbps
K1L2 HPE Ethernet 10Gb 2-port 561T Adapter 32 Up
48-DF-37-1F-0F-09 10 Gbps
K1L1 HPE Ethernet 10Gb 2-port 561T Adap...#4 30 Up
48-DF-37-1F-0F-08 10 Gbps
SMB2 Hyper-V Virtual Ethernet Adapter #5 35 Up
00-15-5D-AE-25-0C 20 Gbps
SMB1 Hyper-V Virtual Ethernet Adapter #4 11 Up
48-DF-37-1E-FC-2D 20 Gbps
LM1 Hyper-V Virtual Ethernet Adapter #3 16 Up
00-15-5D-AE-25-0D 20 Gbps
BCK1 Hyper-V Virtual Ethernet Adapter #2 27 Up
00-15-5D-AE-25-19 10 Gbps
HB1 Hyper-V Virtual Ethernet Adapter 19 Up
00-15-5D-AE-25-18 10 Gbps
M2 Broadcom NetXtreme Gigabit Ethernet #3 20 Up
F4-03-43-5C-75-91 1 Gbps
M1 Broadcom NetXtreme Gigabit Ethernet 24 Up
F4-03-43-5C-75-90 1 Gbps
vm Microsoft Network Adapter Multiple...#2 17 Up
48-DF-37-1E-FC-2C 20 Gbps
K2L2 HPE Ethernet 10Gb 2-port 561T Adap...#2 15 Up
48-DF-37-1E-FC-2D 10 Gbps
K2L1 HPE Ethernet 10Gb 2-port 561T Adap...#3 18 Up
48-DF-37-1E-FC-2C 10 Gbps
The events intensively fill the log and sometimes network connectivity for these virtual adapters (BCK, HB) is temporary lost.
What is problem?