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Cisco Bug: CSCum68443 - BGP update optimization for fast-reload to interoperate with non-GR capa

Last Modified

Jul 14, 2016

Products (6)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 3064 Switch
  • Cisco Nexus 3016 Switch
  • Cisco Nexus 3064-T Switch
  • Cisco Nexus 3048 Switch
  • Cisco Nexus 3132Q Switch

Known Affected Releases


Description (partial)

After BGP session is established, there will be a variable delay (45 seconds plus) before BGP updates from peer are installed into RIB and BGP update is sent to peer. This is seen only when peering with a neighboring Arista device.

This is seen only when peering with an Arista device as Arista device is not GR capable, and hence the delay.

Checking BGP internal logs (sh bgp internal event-history events | grep -i startup) will show the following messages with some time delta, which is equivalent to how long it takes for us to process/send updates.

  Completed startup processing
  Processed startup configuration
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Bug Details Include

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