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Cisco Bug: CSCuo30331 - TOR : Cache entries are not created for BGP learnt hosts over L3 intf

Last Modified

Nov 05, 2020

Products (7)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 3164Q Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch

Known Affected Releases

6.1(2)I2(1.31) 6.1(2)I2(2a)

Description (partial)

Traffic switched from NS ports to T2 ports, can leverage the extra buffer in Northstar ASIC. We support this extra buffer for L2 hosts and L3 hosts connected to Trident ports on TOR.

Right now such extra buffer functionality is NOT supported for Hosts learned by BGP on Trident ports. Please note that there is functional or forwarding issue, just that extra buffers cant be leveraged.

This issue is only applicable TOR platforms using NS ASIC: 9396 and 93128. Same functionality works for Direct hosts and hosts learned through OSPF and for Static Routes.
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