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Cisco Bug: CSCuw32162 - Inter-AS Option B label not programmed

Last Modified

Sep 21, 2018

Products (9)

  • 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 7700 2-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.2(8)S9 7.2(1)D1(1)

Description (partial)

Option B label not programmed

The issue will arise when the following conditions exist:
Option B label exists with corresponding prefix present in the routing table 
A network change occurs that cause the flap for both option B and corresponding prefix
The prefix update comes before the label update for the option B label
Under the above conditions a drop adjacency will be created.
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Bug Details Include

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