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Cisco Bug: CSCvh63530 - Sometimes MPLS traffic drops are seen with ECMP loadbalance towards core with port deletion/addition

Last Modified

Nov 27, 2019

Products (163)

  • Cisco Catalyst 9500 Series Switches
  • Cisco Catalyst 3650-24TD-S Switch
  • Cisco Catalyst 3850-24U-L Switch
  • Cisco Catalyst 3650-48FS-S Switch
  • Cisco Catalyst 3850-16XS-S Switch
  • Cisco 4221 Integrated Services Router
  • Cisco Catalyst C9500-16X-E Switch
  • Cisco Catalyst C9500-32QC-E Switch
  • Cisco Catalyst 9410R Switch
  • Cisco Catalyst 3650-48FQM-L Switch
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Known Affected Releases

16.6.3 16.8.1 16.9.1 Everest-16.6.1 Fuji-16.9.1

Description (partial)

Traffic drops are seen in MPLS core during imposition, with L2 VPN, L3 VPN when MPLS core has multiple ECMP paths

Seen during deletion and addition of  ECMP paths in MPLS core
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