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Cisco Bug: CSCvt67063 - ACI: BD Host Route Advertisement does not work with BGP peer route profile

Last Modified

Jul 21, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

14.2(3n) 15.0(0.112)

Description (partial)

Symptom:
When using a route profile on BGP peer connectivity profile (= per BGP peer route profile) for all route advertisement (both internal and external/transit subnets), the Host Route Advertisement does not work. The host routes are populated via COOP on the border leaf but it is not redistributed to BGP IPv4 table.

When doing L3Out-BD association, or Route Profile per BGP L3Out (ex. default-export), COOP routes are redistributed to BGP and host routes are advertised.

Conditions:
When using a route profile on BGP peer connectivity profile (= per BGP peer route profile).
The following is a brief example configuration and shows what is deployed and missing on the border leaf switches.

<pre>
Configuration
===============
L3Out BGP ------- BGP peer (10.0.0.134)
                      +--- Route Profile BGP_BD_SUBNETS_EXPORT (export dir)

Route Profile --- BGP_BD_SUBNETS_EXPORT
                      +--- Match IP prefixe 192.168.1.0/24 le 32



What is deployed (w/ BGP peer route profile)
===============================================
BGP peer (10.0.0.134) --- Outbound route-map (TK-BGP_BD_SUBNETS_EXPORT-BGP-out)
                              +--- 192.168.1.0/24 le 32
                                                        

BGP process --- COOP redistribution (shared static route-map = exp-ctx-st-2752514)
                              +--- <<< No prefix match for 192.168.1.0/24 le 32 >>>
</pre>
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