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Cisco Bug: CSCun75269 - high convergence time for OSPF traffic when reloading HSRP active switch

Last Modified

Jan 31, 2017

Products (2)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 3548 Switch

Known Affected Releases


Description (partial)

On MTC non-vpc scale setup, switch reload could sometimes totally take around 90s for end-to-end convergence.

This could happen when the HSRP active switch (6k mac, 1000 hosts, 1000 ospf routes) comes up after reload. The OSPF traffic could see a drop twice, first time for STP root change and second time for OSPF route re-learn. This will be seen in Fiji release images. However, convergence numbers seen here will be better than older software releases (Eden).
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