How to Configure a WCF-NetTcpRelay Send Handler
Use the following procedure to configure a WCF-NetTcpRelay send handler.
To configure a WCF-NetTcpRelay send handler
In the BizTalk Server Administration Console, expand BizTalk Server 2013 R2 Administration, expand BizTalk Group, expand Platform Settings, and then expand Adapters.
In the expanded adapter list, click WCF-NetTcpRelay, point to New, and then click Send Handler.
In the Adapter Handler Properties dialog box, on the General tab, in the Host Name list, select the host with which the send handler will be associated, and then click Properties.
In the Send handler tab, do the following.
To do this
Specify the maximum number of outbound connections for each endpoint that is cached in the connection pool. This limits the number of connections that are cached for each unique remote endpoint. You should set this value to be greater than the maximum number of connections that you expect to be cached for any unique remote endpoint. If the number of active outbound connections exceeds this maximum value, then the service may appear unresponsive to the WCF-NetTcpRelay send ports running under this send hander.
The default is 10.
Click OK until you exit all the dialog boxes.