SQL Server - What is Network Interface and its
purposes? - Feb 27, 2010 at 11:50 AM by Shuchi Gauri
In Performance Monitor, there is an object called Network Interface. What does
it mean and under what circumstances would you use it?
Network Interface object is used to monitor activity in each network card on the
server. Every network card has a single instance which is visible through this
object. It has a variety of performance counters which can be used:
-
Bytes total/sec: As name suggests, it measures the total amount of data (send
and recieve) moved between server and the network.
-
Current bandwidth: This measure depicts the maximum speed of the network card
(not the current).
-
Output queue length: It represents the number of packets held in a queue
waiting to be sent from the network card.
Network interface thus allows us to monitor network performance through these
counters.
SQL Server - What is Network Interface and its
purposes? - May 05, 2009 at 22:00 PM by Rajmeet Ghai
In Performance Monitor, there is an object called Network Interface. What does
it mean and under what circumstances would you use it?
Network interface is used to monitor activities of the network cards present on
the server. For each network card, one instance is created.
Use of the network card:-
-
Calculates the amount of data (in Bytes Total/sec) sent and exchanged between
network and server. It helps to realize how busy the network is.
-
Helps to find out the maximum bandwidth for the network. This is useful when
the network adapter performs slowly.
-
Helps to determine the packets to be sent remaining in the queue. Bottleneck
usually arrives when there are more than 2 packets being held for more than a
period of 10 minutes.
SQL Server - What is Network Interface and its
purposes? - June 21, 2009 at 09:00 AM by Amit Satpute
The Network Interface object, present in the Performance Monitor, monitors
activities of network cards in a server.
Description of the way the counters are used:
-
Bytes Total/Sec counter measures the total data (in bytes) transferred between
the server and the network. It gives an indication of the traffic on the
network connection.
-
Current Bandwidth counter determines the maximum speed is for a network adapter
card. It does not measure the bandwidth used at an instance.
If the bandwidth of a network card is known then this counter is not needed.
However, if performance is found slow then match the expected and the actual
speed with the help of this counter.
-
Output Queue Length: It indicates the number of packets being held in a queue,
waiting to be sent from the network card to the network. Generally, it is zero.
However, the packets may get delayed by a short span of time if the server is
busy.
Also read
In order to Integrate Performance Monitor and SQL Profiler, server performance
needs to be captured simultaneously using both Performance Monitor’s Counter
Logs and SQL Server Profiler..........
One of the cheapest ways to capture performance monitor data is to use
performance monitor itself. The performance monitor can be used to create logs
of each activity...............
Answer - SQL Profiler is a tool that stores
events from the server. SQL Profiler saves the events in the trace file......
Answer - Restricting query result means
return of required rows instead of all rows of the table. This helps in
reducing network traffic......
Answer - This is the default and recommended
security mode. In this mode, access to SQL server is controlled by Windows
NT.....
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