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Cisco Bug: CSCvu54266 - clearing ARP or MAC might break the ECMP hardware programming on Nexus 3500 switches

Last Modified

Jul 21, 2020

Products (61)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 3636C-R Switch
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 3548-XL Switch
  • Cisco Nexus 92304QC Switch
  • Cisco Nexus 3064 Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 92160YC-X Switch
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Known Affected Releases

7.0(3)I7(7) 7.0(3)I7(8)

Description (partial)

Latency/packet loss for data plane traffic
Random packet loss for data plane flows
Data plane is punted to the CPU (data plane flows reported on ethanalyzer captures)

ECMP configured at least for 1 prefix on a Nexus 3500 device
ARP and/or MAC tables are deleted globally (clear mac address dynamic and/or clear ip arp vrf <all or vrf name> force-delete)
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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