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Cisco Bug: CSCta77487 - High cpu in K5L3 review jobs with incomplete arps and big routing table

Last Modified

Feb 23, 2018

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases


Description (partial)

 On a 4500 series switch equipped with supervisor 6, high cpu utilization
 may be experienced when either a large number of routes has been imported,
 triggered by a small amount of arp activity, or a large amount of arp   
 activity with a smaller routing table. show processes cpu will show 
 Cat4k Mgmt LoPri taking a significant amount of cpu utilization and show
 platform health  will indicate K5L3FlcMan FwdEntry, K5L3Unciast IFE Review
 and K5L3UnicastRpf IFE Review processes are running above their target
 1) Large routing table and small to large amount of arp activity
 2) Smaller routing table with large amount of arp activity
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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