On Mon, 3 Apr 2023, Mike Hammett via cisco-nsp wrote:

We have a Nexus 3064 that is setup with partial BGP tables and is routing based 
on that.


I've done a show ip bgp for an IP of interest and it has an expected next hop 
IP. I show ip arp on that next hop IP and it has the expected interface.


However, sFlows show the packets leaving on a different interface, the one that 
would carry the default route for routes not otherwise known.


If the next hop IP is expected and the ARP of that next hop IP is expected, why 
are packets leaving out an unexpected interface?

Flowspec rules?  Policy routing?  Bugs? :)

----------------------------------------------------------------------
 Jon Lewis, MCP :)           |  I route
 StackPath, Sr. Neteng       |  therefore you are
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
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