10-31
Expert Features
Application Layer10
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 a utomatically 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 S erver
[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.