12 Replies Latest reply on Oct 11, 2017 5:35 AM by Stanley_

    Why RSS Capable is False on VMXNET3?

    vm7user Enthusiast

      Hello,

       

      I have VM with VMXNET3 and Windows Server 2016

       

      Receive Side Scaling is Enabled:

       

      PS C:\Windows\system32> Get-NetAdapterRss

       

      Name                                            : Ethernet0

      InterfaceDescription                            : vmxnet3 Ethernet Adapter

      Enabled                                         : True

      NumberOfReceiveQueues                           : 4

      Profile                                         : NUMAStatic

      BaseProcessor: [Group:Number]                   : 0:0

      MaxProcessor: [Group:Number]                    : 0:3

      MaxProcessors                                   : 4

      RssProcessorArray: [Group:Number/NUMA Distance] : 0:0/0  0:1/0  0:2/0  0:3/0

      IndirectionTable: [Group:Number]                :

       

       

      C:\Windows\system32>netsh int tcp show global

      Querying active state...

       

      TCP Global Parameters

      ----------------------------------------------

      Receive-Side Scaling State          : enabled

      Chimney Offload State               : disabled

      NetDMA State                        : disabled

      Direct Cache Access (DCA)           : disabled

      Receive Window Auto-Tuning Level    : normal

      Add-On Congestion Control Provider  : none

      ECN Capability                      : enabled

      RFC 1323 Timestamps                 : disabled

      Initial RTO                         : 3000

      Receive Segment Coalescing State    : enabled

      Non Sack Rtt Resiliency             : disabled

      Max SYN Retransmissions             : 2

      TCP Fast Open                       : disabled

       

       

      but, RSS not work on this adapter:

       

      PS C:\Windows\system32> Get-SmbServerNetworkInterface

       

      Scope Name Interface Index RSS Capable RDMA Capable Speed   IpAddress

      ---------- --------------- ----------- ------------ -----   ---------

      *          3               False       False        10 Gbps 192.168.0.100

       

      PS C:\Windows\system32> Get-SmbClientNetworkInterface

       

      Interface Index RSS Capable RDMA Capable Speed    IpAddresses               Friendly Name

      --------------- ----------- ------------ -----    -----------               -------------

      3               False       False        10 Gbps  {192.168.0.100}            Ethernet0

      2               False       False        100 Kbps {fe80::5efe:192.168.0.100} isatap.*******

       

       

      Why RSS Capable is False???