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Cisco Bug: CSCuj80245 - ASR1K AVC: no records created when packets get fragemented

Last Modified

Jan 29, 2017

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.3(3)S 15.4(1)S 15.4(2)S 15.4(3)S

Description (partial)

No address prefix flow records get reported when packets get fragmented at Tunnel interface, which has enabled with AVC flow monitor.

May occur when packet are fragmented due the maximum packet length limit, called the Maximum Transmission Unit (MTU).
When packet size is bigger than the interface MTU, the packet will be fragmented and will not be monitored by AVC.
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