Merge pull request #14486 from briancarrig/patch-1

MultiSubnetFailover parameter added

Author: PRMerger18

docs/relational-databases/replication/agents/replication-distribution-agent.md

@@ -58,6 +58,7 @@ distrib [-?]
 [-MaxBcpThreads]  
 [-MaxDeliveredTransactions number_of_transactions]  
 [-MessageInterval message_interval]  
+[-MultiSubnetFailover [0|1]]
 [-OledbStreamThreshold oledb_stream_threshold]  
 [-Output output_path_and_file_name]  
 [-OutputVerboseLevel [0|1|2]]  
@@ -199,6 +200,9 @@ distrib [-?]
 -   The **MessageInterval** value is reached after the last history event is logged.  
 
  If there is no replicated transaction available at the source, the agent reports a no-transaction message to the Distributor. This option specifies how long the agent waits before reporting another no-transaction message. Agents always report a no-transaction message when they detect that there are no transactions available at the source after previously processing replicated transactions. The default is 60 seconds.  
+
+**-MultiSubnetFailover**
+ Specifies whether the MultiSubnetFailover property is enabled or not. If your application is connecting to an AlwaysOn availability group (AG) on different subnets, setting MultiSubnetFailover=true provides faster detection of and connection to the (currently) active server.
 
  **-OledbStreamThreshold** _oledb_stream_threshold_  
  Specifies the minimum size, in bytes, for binary large object data above which the data will be bound as a stream. You must specify **-UseOledbStreaming** to use this parameter. Values can range from 400 to 1048576 bytes, with a default of 16384 bytes.  
@@ -293,6 +297,7 @@ distrib [-?]
 |Updated content|  
 |---------------------|  
 |Added the **-ExtendedEventConfigFile** parameter.|  
+|Added the **-MultiSubnetFailover** parameter.|  
 
 ## See Also  
  [Replication Agent Administration](../../../relational-databases/replication/agents/replication-agent-administration.md)  

docs/relational-databases/replication/agents/replication-log-reader-agent.md

@@ -44,7 +44,8 @@ logread [-?]
 [-LoginTimeOut login_time_out_seconds]  
 [-LogScanThreshold scan_threshold]  
 [-MaxCmdsInTran number_of_commands]  
-[-MessageInterval message_interval]  
+[-MessageInterval message_interval]
+[-MultiSubnetFailover [0|1]]
 [-Output output_path_and_file_name]  
 [-OutputVerboseLevel [0|1|2|3|4]]  
 [-PacketSize packet_size]  
@@ -133,6 +134,9 @@ logread [-?]
  Is the time interval used for history logging. A history event is logged when the **MessageInterval** value is reached after the last history event is logged.  
 
  If there is no replicated transaction available at the source, the agent reports a no-transaction message to the Distributor. This option specifies how long the agent waits before reporting another no-transaction message. Agents always report a no-transaction message when they detect that there are no transactions available at the source after previously processing replicated transactions. The default is 60 seconds.  
+ 
+ **-MultiSubnetFailover** [**0**|**1**]
+ Specifies whether the MultiSubnetFailover property is enabled or not. If your application is connecting to an AlwaysOn availability group (AG) on different subnets, setting MultiSubnetFailover to 1 (true) provides faster detection of and connection to the (currently) active server.
 
  **-Output** _output_path_and_file_name_  
  Is the path of the agent output file. If the file name is not provided, the output is sent to the console. If the specified file name exists, the output is appended to the file.  
@@ -195,6 +199,7 @@ logread [-?]
 |Updated content|  
 |---------------------|  
 |Added the **-ExtendedEventConfigFile** parameter.|  
+|Added the **-MultiSubnetFailover** parameter.|
 
 ## See Also  
  [Replication Agent Administration](../../../relational-databases/replication/agents/replication-agent-administration.md)