Windows Server

Guest

Hi there, we have 6 terminal servers running in NLB running windows
2003 Enterprise server and session directory service which is situated
on another server out side of the cluster.

Each server is configured with two network cards using IGMP filtering
and multicasting, and has been working fine up to now.
The hardware is 6 compaq DL360 and NO teaming of network adaptor,
the apdaptors are using a static ip for the cluster adapter which has
the multicast mac address on it as well and DHCP for the non used
adaptor. We operate on a single VLAN.

For some unknown reason since we upgraded to Enterprise server from
standard server, when a host in the cluster reboots/or blue screens, it
will cause all sessions on the other servers to disconnect forcing all
users to re-log back on and NOT get the previous sessions desktop back.

The event logs on each server (x) show an
event id of 65
"NLB Cluster 10.2.192.8 : Initiating convergence on host x. Reason:
Host y is converging for an unknown reason."

Host y being the one that was rebooted.

Can anyone explain this

Below is an example of a server config in the cluster.......

=== Configuration: ===

Current time = 21/01/2005 12:40:07
ParametersVersion = 4
VirtualNICName =
AliveMsgPeriod = 1000
AliveMsgTolerance = 5
NumActions = 100
NumPackets = 200
NumAliveMsgs = 66
ClusterNetworkAddress = 01-00-5e-7f-c0-08
ClusterName = ts-cluster.sdcc.local
ClusterIPAddress = 10.2.192.8
ClusterNetworkMask = 255.255.252.0
DedicatedIPAddress = 10.2.192.112
DedicatedNetworkMask = 255.255.252.0
HostPriority = 2
ClusterModeOnStart = STARTED
PersistedStates = SUSPENDED
DescriptorsPerAlloc = 512
MaxDescriptorAllocs = 512
TCPConnectionTimeout = 60
IPSecConnectionTimeout = 86400
FilterICMP = DISABLED
ScaleSingleClient = 0
NBTSupportEnable = 1
MulticastSupportEnable = 1
MulticastARPEnable = 1
MaskSourceMAC = 1
IGMPSupport = ENABLED
IPtoMcastIP = ENABLED
McastIPAddress = 239.255.192.8
NetmonAliveMsgs = 0
EffectiveVersion = V2.1
IPChangeDelay = 60000
IPToMACEnable = 1
ConnectionCleanupDelay = 300000
RemoteControlEnabled = 0
RemoteControlUDPPort = 2504
RemoteControlCode = 0x0
RemoteMaintenanceEnabled = 0x0
CurrentVersion = V2.4
InstallDate = 0x40C87474
VerifyDate = 0x0
NumberOfRules = 1
BDATeaming = DISABLED
TeamID =
Master = DISABLED
ReverseHash = DISABLED
IdentityHeartbeatPeriod = 10000
IdentityHeartbeatEnabled = ENABLED
PortRules
Virtual IP addr Start End Prot Mode Pri Load Affinity
ALL 3389 3389 TCP Multiple Equal S

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