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Cisco Bug: CSCsz53762 - ASR1K: Packets loss after ip virtual-reassembly configured on interface

Last Modified

Feb 02, 2017

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


ASR1000 drops fragmented packets which are jumbo packets after reassembly. The drop cause is ReassNoFragInfo under the "show platform hard qfp act stat drop" command, and  error messages of %HAL_PKTMEM-2-ALLOC_FAIL and %HAL_PKTMEM-2-ALLOC_FAIL are displayed. The HAL_PKTMEM-2-ALLOC_FAIL  traceback points to frag_info_delete.


ip virtual-reassembly is enabled on interfaces which have mtu configured larger than 4608 and jumbo packets are received.
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