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Expert Features
Application Layer
10
NFS Retransmissions
Counter
NFS Retransmissions is a counter of all NFS Retransmissions over a period of time
per segment. A count of all NFS Retransmissions displays in the
Overview counters
of Expert View. A threshold for this counter can be set in Expert Alarms.
Expert Symptom
NFS Retransmission events are automatically logged as expert symptoms. The
Symptom Summary field provides information about the addresses of the client and
server involved. For example:
Client [206.250.228.69] retransmitting to Server
[206.250.228.14]
Diagnostic Details
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Problem Description:
There is a retransmission of an NFS request packet. The RPC identifier for this
connection has been reused.
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Probable Cause(s):
1. An NFS data may be transmitted over several fragmented IP packets. If any of the IP
fragments is missing, it will result in a retransmission.
2. The network is overloaded.
3. The path to the receiving station has long delays.
4. There may be an overloaded switch or router.
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Recommended Action(s):
1. Check if there are any missing IP fragments.
2. If you see repeated delays and too many retransmissions, your router or switch may
need upgrading.