We're building basic VXLAN EVPN fabric to our two DCs, and wondering how you would connect your external partners to the network. These would be our customers and other entities we would like to have integrations from our DC.
Our fabric would look something like this, the usual setup:
https://snag.gy/XWfceB.jpg (with more leaf switches, but just one DC edge router and two spines). MPLS core is our campus LAN and managed by us.
My two options would be either to connect the customers to a pair of border switches, or buy new routers to connect to edge routers. Myself I would prefer connecting them just to our border leaves, as we already have the gear. If we'd need to get extra routers that would cost extra money.
Partners advertise only few routes to us, so the BGP processing capability isn't an issue.
If I connected the customers to border leaves, our DC edge routers would be the BGP peer for the customer.
Any thoughts?
Thanks!
Edit: updated the picture
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