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Expert Features
Network Layer
10
IP Time to Live Expiring
Counter
IP Time to Live Expiring is a counter of all expiring connections over a period of
time per segment. A count of all IP Time to Live Expiring events displays in the
Overview counters of Expert View. A threshold for this counter can be set in Expert
Alarms to generate an alarm based on a specific number of expiring connections.
Expert Symptom
IP Time to Live Expiring events are automatically logged as expert symptoms. The
Symptom Summary field provides information about the “time-to-live” (TTL) and
the source and destination addresses. For example:
TTL=1 SA=[206.250.228.69] and DA=[206.250.228.11]
Diagnostic Details
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Problem Description:
An IP packet has a time to live value that is going to expire.
The packet may be discarded.
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Probable Cause(s):
1. The network is overloaded.
2. Router tables may be misconfigured.
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Recommended Action(s):
1. Increase the network bandwidth.
2. Check your router configuration.