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SQL Network protocol

Posted on 2013-01-21
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Last Modified: 2013-01-30
Hi,
anyone have any idea about shared memory , namepipe protocol ? Our server have this two protocol enable.. I'm not sure if our sql require this protocol or not. but when I check in sys.dm_exec_connections, there seems some connection using both protocol.

I also connect to other sql server remotely, but it seems sql is connected me using namepipe. Below are the result from the registered server in ssms

SELECT net_transport
FROM sys.dm_exec_connections
WHERE session_id = @@SPID;


Server Name      net_transport
Server-A      Shared memory
Server-B      Named pipe
Server-C      Named pipe
Server-D      Named pipe
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Question by:motioneye
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NormanMaina earned 2000 total points
ID: 38804351
Server A: Since its using shared memory , you cannot connect to it using applications or remotely using sql server management in any other computer over the network.

Other Servers:Remote access possible

The protocols that client applications can connect to Microsoft SQL Server are:
1.TCP/IP:
TCP/IP is a common protocol widely used over the Internet. It communicates across interconnected networks of computers that have diverse hardware architectures and various operating systems. TCP/IP includes standards for routing network traffic and offers advanced security features. It is the most popular protocol that is used in business today.
2.named pipes:
It is a protocol developed for local area networks. A part of memory is used by one process to pass information to another process, so that the output of one is the input of the other. The second process can be local (on the same computer as the first) or remote (on a networked computer).
3VIA
Virtual Interface Adapter (VIA) protocol works with VIA hardware..
4. shared memory protocols.
Shared memory is the simplest protocol to use and has no configurable settings. Because clients using the shared memory protocol can only connect to a SQL Server instance running on the same computer, it is not useful for most database activity.

Coutesy:
http://msdn.microsoft.com/en-us/library/ms187892%28v=sql.105%29.aspx
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