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Cisco Bug: CSCvt08181 - ACI - ISIS route convergence issue after bringing up new fabric link

Last Modified

Oct 03, 2020

Products (22)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 93120TX Switch
  • Cisco Nexus 93108TC-EX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9372TX-E Switch
  • Cisco Nexus 9508 Switch
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Known Affected Releases


Description (partial)

All routes to a particular spine switch are removed from uRIB on all leaf switches in the fabric.
spine# show isis database vrf overlay-1
 41e8.010a.0000.00-00* 0x0000005C   0xAD88    946        0/0/0/1
  41e8.010a.0000.00-01* 0x00000009   0xB1BA    940        0/0/0/1-New LSP

This issue occurs after a new fabric link comes online, such as when replacing an SFP for a failed link or so
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