Hello,
I need your advise on the design below suggested by the end customer.
The end customer has 4 DCs with Legacy devices NX-OS N7Ks or N5K as Core devices at each DC.
He suggested to use a pair of 93180YC-EX at each site as Layer-2 AND Layer-3 DCI and use VXLAN BGP EVPN.
The physical topology is as below:
My concerns with this design are:
- Physical topology (Underlay) is a square topology and not a Spine/Leaf or a full mesh topology.
- No Spines to locate BGP RR (Route-Reflectors), instead we can use Full Mesh peering BGP EVPN between the 8 Border Leaves
- No Spines to locate Multicast Anycast RP for the BUM Traffic, could it be co-located on the Border Leaf itself?
- The same pair of Border Leaves will be used for Layer-2 DCI AND Layer-3 DCI
- Different speeds of the links, 10G, 5G, 1G
Is this a supported design and makes a sense please?
Thanks for your help.