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Cisco Bug: CSCvu82481 - Memory leak on vlan_mgr

Last Modified

Oct 03, 2020

Products (24)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 93120TX Switch
  • Cisco Nexus 93240YC-FX2 Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9332C Switch
  • Cisco Nexus 9372TX-E Switch
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Known Affected Releases

14.2(3l)

Description (partial)

Symptom:
There is a memory leak on the leaf switches due to the vlan_mgr process.

PID    MemAlloc  MemLimit    MemUsed     StackBase/Ptr      Process
-----  --------  ----------  ----------  -----------------  ----------------
20484  1727152128  0           1908215808  ffada670/ffad8ef8  vlan_mgr
20487  48373760  0           393666560   ffe71280/ffe7111c  arp
20491  53207040  0           392200192   fff995f0/fff9819c  lacp
20495  47353856  0           112119808   ff956de0/ff955e6c  m2rib
20572  154701824  0           310259712   ffa8c7f0/ffa8b128  ethpm

Conditions:
This issue is seen when the vlan_mgr process consumes the most memory resources. Memory usage is shown in the CLI to be more than 90%.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
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