Guest

Preview Tool

Cisco Bug: CSCuj35697 - BFD flaps unexpectedly on Nexus 7k

Last Modified

Apr 13, 2018

Products (6)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.1(1) 6.1(2) 6.1(4)

Description (partial)

Symptom:
BFD sessions unexpectedly flap.

Additionally, BFD sessions can become stuck in an "Admin Down" state:

<pre>
OurAddr         NeighAddr       LD/RD                 RH/RS           Holdown(mult)     State       Int                   Vrf  
...    
10.155.0.49     10.152.0.10     1124073496/0          AdminDown       N/A(3)            Down        Po4                   RED
</pre>

Conditions:
Can happen due to a BFD process crash on the switch, linecard crash, or a manual reboot of a linecard.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.