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Cisco Bug: CSCtc61584 - A flood of icmpv6 "toobig" messages can exhaust memory and cause crash

Last Modified

Aug 06, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2(32.8.33)REC186 12.2SXI

Description (partial)

Device may experience memory leak when receiving a flood of ICMPv6 messages.  The memory leak will
recover (ie., memory will be released successfully in about 4 hours).

Device configured for IPv6 and PMTUD.
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  • Full Description (including symptoms, conditions and workarounds)
  • Status
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