Get-​Nlb​Cluster​Driver​Info

Gets information about the Network Load Balancing (NLB) driver on the local machine.

Syntax

Get-NlbClusterDriverInfo
   -ClientIP <IPAddress>
   [-ClientPort <Int32>]
   -Filter <Protocol>
   [-Flags <Flags>]
   [-InterfaceName <String>]
   -ServerIP <IPAddress>
   [-ServerPort <Int32>]
   [<CommonParameters>]
Get-NlbClusterDriverInfo
   [-ConvergenceHistory]
   [-InterfaceName <String>]
   [<CommonParameters>]
Get-NlbClusterDriverInfo
   [-ExtendedAffinityExceptionList]
   [-InterfaceName <String>]
   [<CommonParameters>]
Get-NlbClusterDriverInfo
   [-ExtendedAffinityList]
   [-InterfaceName <String>]
   [<CommonParameters>]
Get-NlbClusterDriverInfo
   [-InterfaceName <String>]
   [-OpenConnections]
   [<CommonParameters>]
Get-NlbClusterDriverInfo
   [-InterfaceName <String>]
   [-Params]
   [<CommonParameters>]

Description

The Get-NlbClusterDriverInfo cmdlet gets information about the Network Load Balancing (NLB) driver on the local machine. This includes information about IP addresses, ports, convergence history, connections, extended affinity status, and protocols.

Examples

Example 1: Get information about the NLB driver configuration

PS C:\>Get-NlbClusterDriverInfo
FullyQualifiedDomainName : cluster1.contoso.com 
ParametersVersion        : 6 
EffectiveNlbVersion      : 513 
HostId                   : 2 
ClusterName              : cluster1 
ClusterIPAddress         : 2001:4898:e8:3018:bd82:dde1:6615:7b0 
ClusterMacAddress        : 02-BF-FB-7E-A2-D1 
AliveMsgPeriod           : 1000 
MaxConnectionDescriptors : 262144 
IcmpFilteringEnabled     : False 
InitialHostState         : Started 
CurrentHostState         : Started 
PersistedHostStates      : True

This command gets information about the NLB driver configuration.

Example 2: Get the history of convergence for the local node

PS C:\>Get-NlbClusterDriverInfo -ConvergenceHistory
Time                       FromState                  ToState 
----                       ---------                  ------- 
11/5/2008 10:55:27 PM      StablePhase2               Converged 
11/5/2008 10:55:26 PM      ConvergingPhase2           StablePhase2 
11/5/2008 10:55:26 PM      StablePhase1               ConvergingPhase2 
11/5/2008 10:55:20 PM      ConvergingPhase1           StablePhase1 
11/5/2008 10:55:17 PM      Unknown                    ConvergingPhase1

This command gets the history of convergence for the local node.

Example 3: Declare whether traffic in the given pattern is accepted on the local node

PS C:\>Get-NlbClusterDriverInfo -Filter TCP -ServerIP 2.53.4.222 -ServerPort 5001 -ClientIP 2.53.4.5 -ClientPort 5001
Result 
------ 
ACCEPT_UNCONDITIONAL_OWNERSHIP

This command declares whether traffic in the given pattern is accepted on the local node or not.

Example 4: Enumerate the client IP addresses that are on the extended affinity list on the cluster node

PS C:\>Get-NlbClusterDriverInfo -ExtendedAffinityList
IPAddress           References          VirtualIPAddress    StartPort 
---------           ----------          ----------------    --------- 
2.53.4.5            0                   All                 0 
2.53.4.6            0                   All                 0 
2.53.4.7            1                   All                 0

This command enumerates the client IP addresses that are on the extended affinity list on this cluster node. This applies to port rules that have extended affinity timeout enabled. The cmdlet also displays the number of active connections for each client.

Example 5: Enumerate the client IP addresses that are on the extended affinity exception list

PS C:\>Get-NlbClusterDriverInfo -ExtendedAffinityExceptionList
IPAddress           HostId              VirtualIPAddress    StartPort 
---------           ------              ----------------    --------- 
2.53.4.6            2                   All                 0

This command enumerates the client IP addresses that are on the extended affinity exception list. This applies to port rules that have extended affinity timeout enabled. Traffic from clients on this list will be picked up by another cluster node that has the host ID listed.

Example 6: Enumerate all open connections on the cluster node

PS C:\>Get-NlbClusterDriverInfo -OpenConnections
SourceIPAddress     SourcePort          DestinationIPAddres DestinationPorts

---------------     ----------          ------------------- --------------- 
2.53.4.5            64945               2.53.4.222          5001 
2.53.4.15           64854               2.53.4.222          80

This command enumerates all open connections on this cluster node. This is useful to run when the draining operation takes a long time and the administrator wants to know which connections are on the node.

Required Parameters

-ClientIP

Specifies the connection client IP address that is used to check whether the current cluster node accepts or drops the traffic.

Type:IPAddress
Aliases:CIP
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ConvergenceHistory

Indicates that the cmdlet gets the history of convergences between the cluster nodes.

Type:SwitchParameter
Aliases:History
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ExtendedAffinityExceptionList

Indicates that the cmdlet gets the extended affinity exception list on this cluster node.

Type:SwitchParameter
Aliases:ExceptionList
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ExtendedAffinityList

Indicates that the cmdlet gets the extended affinity list on this cluster node.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-Filter

Specifies whether or not a certain traffic pattern is picked by this cluster node. The parameter specifies the protocol that is used to check whether the current cluster node accepts or drops the traffic. The acceptable values for this parameter are:

  • Gre
  • Icmp
  • Ipsec
  • Pptp
  • Tcp
  • Udp
Type:Protocol
Parameter Sets:Tcp, Pptp, Gre, Udp, Ipsec, Icmp
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-OpenConnections

Indicates that the cmdlet gets the list of open connections to the cluster.

Type:SwitchParameter
Aliases:OpenConnection
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ServerIP

Specifies the connection tuple server IP address used to check whether the current cluster node accepts or drops the traffic.

Type:IPAddress
Aliases:SIP
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False

Optional Parameters

-ClientPort

Specifies the connection tuple client port that is used to check whether the current cluster node accepts or drops the traffic. The acceptable values for this parameter are: 0 through 65535.

Type:Int32
Aliases:CPT
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-Flags

Specifies the type of packet that is used to check whether the current cluster node accepts or drops the traffic. The acceptable values for this parameter are:

  • Fin
  • Rst
  • Syn
Type:Flags
Aliases:FG
Parameter Sets:Syn, Fin, Rst
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-InterfaceName

Specifies the interface to which NLB is bound. This is the interface of the cluster against which this cmdlet is run.

Type:String
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-Params

Indicates that the cmdlet gets the list information about the NLB driver on this node.

Type:SwitchParameter
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False
-ServerPort

Specifies the connection tuple server port used to check whether the current cluster node accepts or drops the traffic. The acceptable values for this parameter are: 0 through 65535.

Type:Int32
Aliases:SPT
Position:Named
Default value:None
Accept pipeline input:False
Accept wildcard characters:False

Inputs

None

Outputs

Microsoft.NetworkLoadBalancingClusters.PowerShell.ClientExceptionRecord

Outputs

Microsoft.NetworkLoadBalancingClusters.PowerShell.ClusterSettings

Outputs

Microsoft.NetworkLoadBalancingClusters.PowerShell.ConvergenceHistoryRecord

Outputs

Microsoft.NetworkLoadBalancingClusters.PowerShell.DescriptorRecord

Outputs

Microsoft.NetworkLoadBalancingClusters.PowerShell.DriverInfo

Outputs

Microsoft.NetworkLoadBalancingClusters.PowerShell.ExtendedAffinityRecord