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Cisco Bug: CSCuo63409 - FP Flood LTL entry misprogramed after reload spine VDC with transit mode

Last Modified

Jan 28, 2017

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch

Known Affected Releases


Description (partial)

When fabricpath spine node is configure in "transit" mode, this issue could cause misprogramming of flood LTL that cause traffic outage.

This is issue is specific to "fabricpath mode transit" configuration. Traffic outage would be observed as a result with drop occuring at the transit spine.

The is issue is more likely to occur in a scaled testbed, with more number of vlans, SVIs or L2 mcast group entries. Reload or vdc restart can also trigger the same on a scale bed.
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