Finisar Surveyor, User Manual

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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.