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hyper-v cluster 2016, event id 25, Hyper-V-VmSwitch

    Question

  • 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?

    Wednesday, April 18, 2018 1:51 PM

All replies

  • Hi ,

    This is a quick note to let you know that I am currently performing research on this issue and will get back to you as soon as possible. I appreciate your patience.
    If you have any updates during this process, please feel free to let me know.

    Best Regards,

    Candy


    Please remember to mark the replies as an answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com   

    Thursday, April 19, 2018 9:57 AM
  • Any update on this problem?
    Thursday, July 12, 2018 12:49 PM
  • Any new info on this?  Ever since I started seeing all these Hyper-V VmSwitch 25 events all the time, server 2016 crashes at least every 12 hours
    Monday, November 5, 2018 11:42 PM
  • I am in the same boat, also seeing multiple event with ID 25.

    Example:

    The MAC address 00-15-5D-D4-23-00 has moved from port 958DFE2E-7078-4D1D-828F-8C59139F35EA (Friendly Name: vswitch10G_External) to port E3DF345B-7C4C-436B-9EF1-5432B21A2F07 (Friendly Name: vNICMGMT).

    Config:
    WS2016 with Hyper-V.

    TEAM with 2x10Gig Intel x710, LACP Dynamic mode. Cisco switches.

    PS C:\> Get-VMNetworkAdapterVlan -ManagementOS
    
    VMName VMNetworkAdapterName Mode   VlanList
    ------ -------------------- ----   --------
           LiveMigration        Access 7
           Heartbeat            Access 7
           vNICMGMT             Access 7
    
    
    PS C:\> Get-VMNetworkAdapter -ManagementOS
    
    Name          IsManagementOs VMName SwitchName MacAddress   Status IPAddresses
    ----          -------------- ------ ---------- ----------   ------ -----------
    Heartbeat     True                  vSWITCH1G  00155DD42302 {Ok}
    LiveMigration True                  vswitch10G 00155DD42301 {Ok}
    vNICMGMT      True                  vswitch10G 00155DD42300 {Ok}
    
    
    PS C:\> Get-VMSwitch
    
    Name       SwitchType NetAdapterInterfaceDescription
    ----       ---------- ------------------------------
    vSWITCH1G  External   Microsoft Network Adapter Multiplexor Driver #2
    vswitch10G External   Microsoft Network Adapter Multiplexor Driver
    


    PS C:\> get-netadapter
    
    Name                      InterfaceDescription                    ifIndex Status       MacAddress             LinkSpeed
    ----                      --------------------                    ------- ------       ----------             ---------
    TEAM1G                    Microsoft Network Adapter Multiple...#2       9 Up           E4-43-4B-1A-C8-A9         2 Gbps
    vEthernet (Heartbeat)     Hyper-V Virtual Ethernet Adapter #3          10 Up           00-15-5D-D4-23-02         1 Gbps
    vEthernet (LiveMigration) Hyper-V Virtual Ethernet Adapter #2           7 Up           00-15-5D-D4-23-01        10 Gbps
    vEthernet (vNICMGMT)      Hyper-V Virtual Ethernet Adapter             12 Up           00-15-5D-D4-23-00        10 Gbps
    NIC2                      Intel(R) Ethernet 10G X710 rNDC               4 Up           E4-43-4B-1A-C8-8A        10 Gbps
    TEAM10G                   Microsoft Network Adapter Multiplexo...      18 Up           E4-43-4B-1A-C8-8A        20 Gbps
    NIC4                      Intel(R) Gigabit 4P X710/I350 rNDC #2        11 Up           E4-43-4B-1A-C8-A9         1 Gbps
    NIC3                      Intel(R) Gigabit 4P X710/I350 rNDC           15 Up           E4-43-4B-1A-C8-A8         1 Gbps
    NIC1                      Intel(R) Ethernet 10G 4P X710/I350 rNDC      13 Up           E4-43-4B-1A-C8-88        10 Gbps
    

    Any help or guidance as to where to look for answers would be appreciated.


    Marek ITPro

    Tuesday, November 27, 2018 11:56 AM