How to enable Network load balancing for Enterprise portal
Hello,
We have installed EP 7.0 central instance(00) and dialog instance (01) and would like to enable network load balancing between these two EP servers.Have installed network balancer and the configuration has been done at network level.
The below URLs are being used for accessing the portal
Central instance :
http://CIhostname:50000/irj/portal
Dialog Instance:
http://DIhostname:50100/irj/portal
Both the port number has to be same for enabling load balancing.In order to acive this we have to map this port to http port by making some changes in Visual Administrator.
Can you please let me know step by step procedure or any link where i can find the same?
Appreciate your response
Thanks,
Vadi
Dear Jay,
Thnaks for your reply.
No...NLB will helpful in load balancing between different 2 different application (Ep)servers.
We are using microsoft network load balancer.Found the service http provider in VA for making those changes.
Any way thanks.
Regards,
Vadi
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DNS load balancing for Enterprise serevrs
Hi All
In my test Lync 2010 Enterprise environments, recently i have implemented the DNS load balancing with webservices
My environment is two lync 2010 ent servers , 1 SQL server, 1 Monitoring + Archive server (Same Box)
The below steps was performed from me for DNS load balancing.
PLEASE NOTE: NO HARDWARE LOAD BALANCING IN MY SETUP
Create a Host record for the Pool name with respective front end servers
Pool name : Pool2.doitnow.com with 2 lync 2010 enterprise servers named lyncfe01n.doitnow.com (192.168.1.5) and lyncfe02.doitnow.com (192.168.1.6)
Two host A records in DNS as POOl2 with IP of 192.168.15 and 192.168.1.6
1. From the Lync Server 2010 program group, open Topology Builder.
2. From the console tree, expand the Enterprise Edition Front End pools node.
3. Right-click the pool, click Edit Properties, and then click
Web Services.
4. Below Internal web services, select the Override FQDN check box.
5. Type the pool FQDN that resolves to the physical IP addresses of the servers in the pool. in
(my case it is Pool2.doitnow.com )
6. Below External web services, type the external pool FQDN that resolves to the virtual IP addresses of the pool, and then click
OK. ((my case it is Pool2.doitnow.com ) - is that REQUIRED ?
7. From the console tree, select Lync Server 2010 , and then in the
Actions pane, click Publish Topology.
IS THERE ANY THING TO BE DONE APART fROM ABOVE POINTS
Now
what i did is. in lyncfe01n.doitnow.com - i have disabled the network card and try to login lync 2010 client , but not succeesfull
my assumption is, it should work via lyncfe02.doitnow.com, since load balanace in DNS is in already in place
do i need to open / firewall rule to be creany port in second lync server
here is the below seqeunce of event viwer from lync
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:34:31 PM
Event ID: 32108
Task Category: (1006)
Level: Warning
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Pool Manager changed state of Registrar with FQDN: lyncfe02.doitnow.com to Inactive.
======
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:35:01 PM
Event ID: 32109
Task Category: (1006)
Level: Information
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Pool Manager changed state of Registrar with FQDN: lyncfe02.doitnow.com to Active
====
Log Name: Lync Server
Source: LS Routing Data Sync Agent
Date: 1/14/2014 3:50:58 PM
Event ID: 48003
Task Category: (1058)
Level: Information
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
The Routing Data Sync Agent has initiated a sync cycle with: [pool2.doitnow.com]
=====
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:56:21 PM
Event ID: 32108
Task Category: (1006)
Level: Warning
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Pool Manager changed state of Registrar with FQDN: lyncfe02.doitnow.com to Inactive.
===============
Log Name: Lync Server
Source: LS File Transfer Agent Service
Date: 1/14/2014 3:56:45 PM
Event ID: 1008
Task Category: (1121)
Level: Error
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Failed to read Central Management database information from AD connection point. Microsoft Lync Server 2010, File Transfer Agent will continuously attempt to retrieve this information.
While this condition persists, configuration changes will not be delivered to replica machines.
Exception:
Microsoft.Rtc.Management.ADConnect.ADTransientException: Active Directory error "-2147016646" occurred while searching for domain controllers in domain "doitnow.com": "The server is not operational.
Name: "doitnow.com"
" ---> System.DirectoryServices.ActiveDirectory.ActiveDirectoryServerDownException: The server is not operational.
Name: "doitnow.com"
---> System.Runtime.InteropServices.COMException (0x8007203A): The server is not operational.
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.PropertyValueCollection.PopulateList()
at System.DirectoryServices.PropertyValueCollection..ctor(DirectoryEntry entry, String propertyName)
at System.DirectoryServices.PropertyCollection.get_Item(String propertyName)
at System.DirectoryServices.ActiveDirectory.PropertyManager.GetPropertyValue(DirectoryContext context, DirectoryEntry directoryEntry, String propertyName)
--- End of inner exception stack trace ---
at System.DirectoryServices.ActiveDirectory.PropertyManager.GetPropertyValue(DirectoryContext context, DirectoryEntry directoryEntry, String propertyName)
at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
--- End of inner exception stack trace ---
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.DiscoverDC()
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.ReportDownServer(String serverName, ADServerRole role)
at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.MarkDown(LdapError ldapError, String message)
at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.AnalyzeDirectoryError(DirectoryException de)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.AnalyzeDirectoryError(ADConnection connection, DirectoryRequest request, DirectoryException de, Int32 totalRetries, Int32 retriesOnServer)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, String optionalBaseDN, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCreator, CreateObjectsDelegate
arrayCreator, Boolean includeDeletedObjects)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCtor, CreateObjectsDelegate arrayCtor)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find[TResult](ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetTopologySetting()
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetBackEndServer()
at Microsoft.Rtc.Xds.Replication.Common.Utils.TryGetConnectionPointFromAD(String& sqlStorePath, Exception& exception)
Cause: Possible issues with configuration or AD access.
Resolution:
Ensure that activation is completed and AD is accessible from this machine.
at Microsoft.Rtc.Xds.Replication.Common.Utils.TryGetConnectionPointFromAD(String& sqlStorePath, Exception& exception)</Data>
====================
Log Name: Lync Server
Source: LS Master Replicator Agent Service
Date: 1/14/2014 3:56:45 PM
Event ID: 2014
Task Category: (2122)
Level: Error
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Failed to read Central Management database information from AD connection point. Microsoft Lync Server 2010, Master Replicator Agent will continuously attempt to retrieve this information.
While this condition persists, configuration changes will not be delivered to replica machines.
Exception:
System.ApplicationException: Domain "doitnow.com" cannot be contacted or does not exist. ---> System.DirectoryServices.ActiveDirectory.ActiveDirectoryObjectNotFoundException: The specified domain does not exist or cannot be contacted.
at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
--- End of inner exception stack trace ---
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.GetDCForDomain(String fqdn, NetworkCredential networkCredential)
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.DiscoverDC()
at Microsoft.Rtc.Management.ADConnect.Connection.DirectoryServicesTopologyProvider.ReportDownServer(String serverName, ADServerRole role)
at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.MarkDown(LdapError ldapError, String message)
at Microsoft.Rtc.Management.ADConnect.Connection.ADConnection.AnalyzeDirectoryError(DirectoryException de)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.AnalyzeDirectoryError(ADConnection connection, DirectoryRequest request, DirectoryException de, Int32 totalRetries, Int32 retriesOnServer)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, String optionalBaseDN, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCreator, CreateObjectsDelegate
arrayCreator, Boolean includeDeletedObjects)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find(ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties, CreateObjectDelegate objectCtor, CreateObjectsDelegate arrayCtor)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.Find[TResult](ADObjectId rootId, QueryScope scope, QueryFilter filter, SortBy sortBy, Int32 maxResults, IEnumerable`1 properties)
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetTopologySetting()
at Microsoft.Rtc.Management.ADConnect.Session.ADSession.GetBackEndServer()
at Microsoft.Rtc.Xds.Replication.Common.Utils.TryGetConnectionPointFromAD(String& sqlStorePath, Exception& exception)
Cause: Possible issues with configuration or AD access.
Resolution:
Ensure that activation is completed and AD is accessible from this machine.
===============
Log Name: Lync Server
Source: LS Inbound Routing
Date: 1/14/2014 3:56:46 PM
Event ID: 45005
Task Category: (1037)
Level: Error
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Unexpected exception occurred in the Inbound Routing Application.
======================================
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:56:53 PM
Event ID: 30975
Task Category: (1006)
Level: Warning
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Encountered a connection failure while executing a request against the back-end.
Back-end: sql.doitnow.com\rtc
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:56:53 PM
Event ID: 32134
Task Category: (1006)
Level: Error
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Failed to connect to back-end database. Lync Server will continuously attempt to reconnect to the back-end. While this condition persists, incoming messages will receive error responses.
Back-end Server: sql.doitnow.com\rtc Database: rtc Connection string of:
driver={SQL Server Native Client 10.0};Trusted_Connection=yes;AutoTranslate=no;server=sql.doitnow.com\rtc;database=rtc;
Cause: Possible issues with back-end database.
Resolution:
Ensure the back-end is functioning correctly.
=================
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:56:53 PM
Event ID: 32112
Task Category: (1006)
Level: Warning
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Pas with FQDN: Pool2.doitnow.com has been detected to be down.
=================
Log Name: Lync Server
Source: LS User Services
Date: 1/14/2014 3:56:54 PM
Event ID: 32098
Task Category: (1006)
Level: Warning
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Failed processing conference status requests. This error might delay the freeing up of PSTN meeting ids in conference directories homed on this pool.
Error code: 0x800407D0
Cause: Possible issues with back-end or Lync Server health.
Resolution:
Ensure the Lync Server service is healthy.
===========
Log Name: Lync Server
Source: LS User Replicator
Date: 1/14/2014 3:58:33 PM
Event ID: 30022
Task Category: (1009)
Level: Warning
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
The connection to domain controller DC01.doitnow.com appears to have been terminated. The domain controller could have gone down. User Replicator will attempt to reconnect to an available domain controller for this domain.
=====
Log Name: Lync Server
Source: LS File Transfer Agent Service
Date: 1/14/2014 3:58:43 PM
Event ID: 1035
Task Category: (1121)
Level: Error
Keywords: Classic
User: N/A
Computer: lyncfe01n.doitnow.com
Description:
Failed to register with back-end database. Microsoft Lync Server 2010, File Transfer Agent will continuously attempt to reconnect to the back-end. While this condition persists, no replication will be done.
The Connection string: Data Source = sql.doitnow.com\rtc;
Database = xds;
Max Pool Size = 5;
Connection Timeout = 60;
Connection Reset = false;
Enlist = false;
Integrated Security = true;
Pooling = true;
Exception: [-1] Could not connect to SQL server : [Exception=System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that
the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.Rtc.Common.Data.DBCore.PerformSprocContextExecution(SprocContext sprocContext)]
Cause: Possible issues with back-end database.
Resolution:
Ensure the back-end is functioning correctly.
=================Thanks Andrew.
may be i missed to create SRV records for the second FE server - Let me check this point and come back -- is it mandatory to create the SRV records for second FE server?
Are the clients using "Automatic Configuration"? Yes.
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In the document: Configuring LiveCycle ES2 Application Server Clusters Using JBoss.
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Ethernet adapter Data NIC 192.168.220.172:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) I350 Gigabit Network
#4
Physical Address. . . . . . . . . : 6C-3B-E5-B2-48-60
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IPv4 Address. . . . . . . . . . . : 192.168.220.172(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
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192.168.200.10
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Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM57810 NetXtreme II
DIS VBD Client) #67
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Autoconfiguration Enabled . . . . : Yes
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Subnet Mask . . . . . . . . . . . : 255.255.255.0
IPv4 Address. . . . . . . . . . . : 192.168.220.170(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
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DNS Servers . . . . . . . . . . . : 192.168.220.100
192.168.200.10
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r #54
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IPv4 Address. . . . . . . . . . . : 192.168.220.174(Preferred)
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IPv4 Address. . . . . . . . . . . : 192.168.220.170(Preferred)
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192.168.200.10
NetBIOS over Tcpip. . . . . . . . : EnabledHi MS DEF,
A second network adapter is required to provide peer-to-peer communication between cluster hosts. Please isolate your heartbeat network. With unicast when cluster is connected
to a switch, incoming packets are sent to all the ports on the switch, which can cause switch flooding, please confirm you have setup your switch correct, you can refer the following Cisco Switch related unicast configuration.
The Cisco switch unicast related information:
How to configure Microsoft Network Load Balancing on two switches
https://supportforums.cisco.com/discussion/11918276/how-configure-microsoft-network-load-balancing-two-switches
More information:
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
An Optimal Network Load Balancing (NLB) Configuration
http://blogs.technet.com/b/clint_huffman/archive/2007/10/08/an-optimal-network-load-balancing-nlb-configuration.aspx
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
I’m glad to be of help to you!
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Network Load Balancing and failover for AFP Sharing
Dear all,
Somebody kindly teach me to use round robin DNS to perform the network load balancing, it's success but not the failover.
I have 4 xserve and want to do the load balancing and failover at the same time.
I have read the IP failover document and setup it successfully, but anyone know is it possible to do the IP failover for more than 2 server?
For example, 4 server serving the AFP service at the same time, maybe I have 1 more extra server to do the IP failover for thoese 4 servers.
As I know, IP failover require Firewire as the heartbeat detection. But one xserve only have 2 firewire ports. May I setting up the IP failover only by a ethernet port and an IP address? does it possible to detect and failover to any server after server down has been detected?
I believe load balancer maybe the best solution but its cost is too high.
Thanks any advance!
Karlleewell, u have 2 options here
software load balancing
request comes it foo.com -> ws7u2 hosting foo.com is configured to run as reverse proxy . this server sends any incoming requests to one of the four back end web server 7 handling your incoming request
hardware load balancing (this you need to invest)
request comes to hardware load balancer who responds for foo.com -> sends requests to four ws7 server hosting your application
you could try out how software load balancing works out for you before you invest in hardware load balancing
here is more instruction on configuring ws7 + reverse proxy (software load configuration)
- install ws7 on foo.com
- create a new configuration (choose port 80, disable java -
Reverse Proxy and Load Balancer for SMP 2.3 and Agentry Application
Hi Expert,
I'm putting in place a mobile solution composed by SMP 2.3 SPS 4 and SAP ECC 6.0. In the SMP 2.3 I created the agentry server and I have deployed my agentry application.
My SMP/Agentry infrastructure is composed by two servers therefore I need a load balancer for balance the load into the several servers. Furthermore I need to use a reverse proxy in my DMZ zone.
Based on what indicated in the SAP note "1904213 - SAP Mobile Platform Server Release Information" the Apache Reverse Proxy is not supported for Agentry clients. Agentry uses nginx for Reverse Proxy.
I also found the following document How-to-Guide for Reverse Proxy and Load Balancing in SAP Mobile Platform 3.x that explain how to set-up a reverse proxy and load balancer with nginx and apache.
Both the SAP note and the HOW to document are refereed to SMP 3.0 and not to SMP 2.3.
I would know if the NGINX must be used also for SMP 2.3.
Any suggestion/information is appreciated.
Thanks in advance
g.Please see Agentry Network Landscapes
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Windows Server 2012 R2 - ADFS/Windows Network Load Balancing Converging Issue
Hello,
My name is Brandon. We have started upgrading our servers to Windows Server 2012 R2. We have some powerful servers for running ESXI 5.5 as the OS with the Guest Operating Systems as Windows Server 2012 R2. As far of our migrations/upgrades we have configured
ADFS 2012 R2 into a Server Farm with Windows Network Load Balancing to add redundancy in the event a server goes down.
I have been having issues with a Node with the Cluster getting stuck in the Status of Converging. The only way I have been able to get it back up is to restart the virtual server completely and it is temporary. When I first configure the Cluster the two
virtual servers get added to the Node with no problems and fully converge. However, after some time a node will end up in Converging and this takes Authentication for ADFS down as the nodes can not be contacted over Port 443.
Error: Host: server.domain.com Unable to connect to "server name"
System
Provider
[ Name]
Microsoft-Windows-NLB
[ Guid]
{F22AF71F-C4C3-425D-9653-B2F47B85DD30}
EventID
21
I have tried using 1 & 2 Virtual NICs on the machines and still end up with communication issues. Could someone assist me with why I am having this issue? This is not an issue with a firewall. If it was a firewall it would never communicate the first
time. Has anyone had experience with a similar configuration and how were you able to make it work?
Below is my configuration.
Static ARP Entry for Cluster IP Address has been added to our Layer 3 switch.
Physical Server 1:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.5
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 1 (Guest OS)
Physical Server 2:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.6
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 2 (Guest OS)
Virtual Servers
Virtual Server 1
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE 2
VIRTUAL NETWORK ADAPTERS
VNIC1 IP ADDRESS 192.168.0.10
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.11
SUBNET: 255.255.255.0
Virtual Server 2
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE 2
VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.20
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.21
SUBNET: 255.255.255.0
Cluster Configuration/Properties
CLUSTER PROPERTIES CLUSTER IP: 192.168.0.30
CLUSTER SUBNET: 255.255.255.0
FULL INTERNET NAME: FS.DOMAIN.COM
CLUSTER OPERATION MODE: MULTICAST
PORT RULES:
CLUSTER IP ADDRESS
START
END
PROTOCAL
MODE
PRIORITY
LOAD
AFFINITY
ALL
80
80
BOTH
MULTIPLE
EQUAL
NONE
ALL
443
443
BOTH
MULTIPLE
EQUAL
NONE
CLUSTER NODES:
1.) SERVER1.DOMAIN.COM
a. IP: 192.168.0.11
2.) SERVER2.DOMAIN.COM
a. IP: 192.168.0.21Hi,
According to your description, my understanding is that：2 ESXI 5.5 physical devices (192.168.0.5 and 192.168.0.6), each of them has a virtual WS 2012 R2(192.168.0.10 and 192.168.0.20). Cluster the 2 virtual servers successfully, but they corrupt with event
ID 21, and a restart of virtual device will resolve this problem temporarily.
Event ID 21 means that NLB failed to converge due to inconsistencies in the port rules between this host and cluster host. This will occur if the number of port rules or the type of port rules are different between hosts.
Ensure that all NLB hosts have identical port rules. Detailed steps you may reference:
Event ID 21 — NLB Port Rules Configuration
https://technet.microsoft.com/en-us/library/dd364034%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396
Best Regards,
Eve Wang
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact
[email protected] -
Windows Server 2012 R2 - Windows Network Load Balancing Converging Issue
Hello,
My name is Brandon. We have started upgrading our servers to Windows Server 2012 R2. We have some powerful servers for running ESXI 5.5 as the OS with the Guest Operating Systems as Windows Server 2012 R2. As far of our migrations/upgrades we have configured
ADFS 2012 R2 into a Server Farm with Windows Network Load Balancing to add redundancy in the event a server goes down.
I have been having issues with a Node with the Cluster getting stuck in the Status of Converging. The only way I have been able to get it back up is to restart the virtual server completely and it is temporary. When I first configure the Cluster the two
virtual servers get added to the Node with no problems and fully converge. However, after some time a node will end up in Converging and this takes Authentication for ADFS down as the nodes can not be contacted over Port 443.
Error: Host: server.domain.com Unable to connect to "server name"
System
Provider
Name]
Microsoft-Windows-NLB
Guid]
{F22AF71F-C4C3-425D-9653-B2F47B85DD30}
EventID
21
I have tried using 1 & 2 Virtual NICs on the machines and still receive this error even if only 1 VNIC is assigned to the virtual machine. Could someone assist me with why I am having this issue? Has anyone had experience with a similar configuration
and how were you able to make it work?
Below is my configuration.
Static ARP Entry for Cluster IP Address has been added to our Layer 3 switch.
Physical Server 1:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.5
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 1
Physical Server 2:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.6
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 2
Virtual Servers
Virtual Server 1
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE
2 – VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.10
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.11
SUBNET: 255.255.255.0
Virtual Server 2
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE
2 – VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.20
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.21
SUBNET: 255.255.255.0
Cluster Configuration/Properties
CLUSTER PROPERTIES
CLUSTER IP: 192.168.0.30
CLUSTER SUBNET: 255.255.255.0
FULL INTERNET NAME: FS.DOMAIN.COM
CLUSTER OPERATION MODE: MULTICAST
PORT RULES:
CLUSTER IP ADDRESS START END PROTOCAL MODE PRIORITY LOAD AFFINITY
ALL 80 80 BOTH MULTIPLE .. EQUAL NONE
ALL 443 443 BOTH MULTIPLE .. EQUAL NONE
CLUSTER NODES:
1.) SERVER1.DOMAIN.COM
a. IP: 192.168.0.11
2.) SERVER2.DOMAIN.COM
a. IP: 192.168.0.21Thank you for your response. It took me a while to figure it out, but the whole issue was related to the type of Virtual Network Adapter I was selecting.
I changed the network adapter from E1000 to VMXNET 3 and have not had a single error in the event logs or Windows NLB.
I read somewhere that VMXNET 3 is preferred for Windows Server 2012 R2.
https://communities.vmware.com/thread/433792
Leyuka May 23, 2013 6:14 AM
"Just a help for everyone with this problem :
After 10 days of research for our virtual datacenter behind a vcloud as iias , i found a solution .
I only run windows 2012 server .
Install vmware tools , remove e1000 network card after a vm stop, add a card same vswitch etc BUT with a vmxnet3 TYPE . DONT USE DEFAULT CARD
Start and enjoy this solution . E1000 and E1000e are just unstable in windows8 / windows 2012 , the network card reset randomly with or without heavy IO. No log in windows , and as a vcloud user i don"t have esxi logs (damn i don't like cloud) and provider
don"t know why ..." -
Set up Network Load Balancing on an Azure VM
i have an VM on Azure, on which I have two AD LDS instances. I want to set up Network Load Balancing to have fault tolerance between the two AD LDS instances. when i start to create a new cluster, it shows me a message that DHCP will be turned off. i ignored
that one time, and what conspired was that i was unable to access the VM only. i had to set up my AD LDS instance on a different VM again.
is there any way which will enable me to set up the AD LDS instance properly on the VM?Hi,
Firstly, if I understand correctly, you set up a cluster with only one VM? Based on my experience, you need to use two Azure VMs running AD LDS to configure Failover cluster.
In addition, did you mean that you cannot RDP into the VM after you created the cluster? If yes, which kind of error message you have received? Please check the Quick Glance of that VM on the
Azure management portal to make sure that all the parameters for that VM are displaying, especially for the internal IP address.
Furthermore, it seems that the question is related to Azure Virtual Machines, I recommend you to ask in Azure Virtual Machine forum below for further assistance:
https://social.msdn.microsoft.com/Forums/en-US/home?forum=WAVirtualMachinesforWindows
Best regards,
Susie -
Acrhitecture of network load balancing solution
i'm working on a setup that will transition our existing data center setup to a network load balancing solution. i'm far from understanding what components to use and how to approach the problem so any help would be very welcome. here is what we currently have:
1. 3 web servers (serverA, serverB, serverC)
2. 1 sql server
3. 2 layer two unmanaged switches
4. 1 cisco firewall
each one of the web servers runs a dedicated web app. what i would like is to replace serverA with a NLB cluster of 3 servers and replace serverB with another NLB cluster of 3 servers. serverC is not getting that much usage and it can stay as is.
i have looked at possible solution with Windows Server 2008 NLB and it seems that the best way to do it would be using multicasting which requires upgrading out switches. at the same time if would much more prefer to use hardware load balancing than Windows Server. so i looked at Cisco ACE 4710 appliance. however it seems that some of the cisco switches will also do load balancing. now i'm completely confused whether to upgrade the switches and use them for load balancing or use the ACE appliance. i would appreciate any advices and suggestions. also, any recommendations on breaking up the network using VLANs - if it is necessary with either one of the solutions or if there is some benefit. i guess i'm looking for a "best practices" solution...
any links or documents would be very welcomed.
thanks.thanks for your response. i think i'm going with ace 4710. now, as far as vlans go why would i need internet, dmz and internal vlan in my datacenter? i understand that this may be a bit off topic but what is really bugging me is this: with the current setup all of the web servers have 2 nics - one with public IP and one with private IP. same goes with the sql server. on web servers nics with private IPs are used for communicating with the database server. they could very well communicate using nics with public IPs but the person that set this up (i recently inherited it) was convincing me that with the existing setup "public" nics are not burdened with communication between web servers and database server. is this "correct" way of doing it?
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