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I noticed when we use APSTRA to build EBGP underlay network for VXLAN, it announces underlay leaf's underlay loopback ip with community :DEFAULT_DIRECT_V4
Which is defined on all leafs by APSTRA:
set policy-options community DEFAULT_DIRECT_V4 members 1:20007set policy-options community DEFAULT_DIRECT_V4 members 21001:26000
1) I observed none of the leafs and spines have BGP import policy, if there is no import policy referencing community DEFAULT_DIRECT_V4 to perform any action. then what is the point announcing routes with this community?
Thanks and have a good day!!