Finisar Surveyor manual Slow Server Connect, Slow FTP server connect=298 ms 200 ms

Surveyor

User’s Guide

Slow Server Connect

Counter

Slow Server Connect is a counter of all server connect responses that exceed a threshold. A count of all Slow Server Connects displays in the Overview counters of Expert View.

Expert Symptom

Slow Server Connect events are automatically logged as expert symptoms. The Symptom Summary field provides information about the type of application server, the time taken for the server to connect, and the threshold value. For example:

Slow FTP server connect=298 ms (> 200 ms)

The threshold value for this symptom can be changed. The default value is 200 milliseconds.

This symptom applies to text-based application protocol servers such as FTP, SMTP, NNTP, and POP3. These servers send a ready message when a client first logs in. If the response time is too long (exceeds the threshold), the symptom is recorded. For slow responses other than the ready message, see the Slow Server Response symptom.

Diagnostic Details

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Problem Description:

The first server ready message has taken longer than the threshold value to reach the sender.

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Probable Cause(s):

1.The server was very busy.

2.The server is overloaded.

3.The path to the sender from the receiver has long delays.

4.There may be an overloaded switch or router in the path.

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Recommended Action(s):

1.Upgrade the server’s CPU and /or memory.

2.Reduce the number of connections to the server.

3.Load balance your network.

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