MetalLB in BGP mode on NSX-T

[vitality]

Hello,

Using Cloud Director 10.6 with NSX-T 4.1. I have tried to find out if it is possible, to establish BGP peering sessions from MetalLB with NSX-T, and use that peering sessions to advertise the IPs of external cluster services.

According to VMWARE NSX REFERENCE DESIGN GUIDE BGP is only supported on Tier-0 gateways on external interface with physical routers:

Tier-0 gateways support eBGP and iBGP on the external interfaces with physical routers

Has anyone tried this or are there any alternatives I could use instead?
Would it be possible to establish an ebgp-multihop connection directly with the NSX external routers?

Thanks is advance.
Vitali

[Bogdan28]

If you want to use BGP to advertise services from MetalLB to external routers, you can indeed establish an eBGP session between the external NSX-T Tier-0 gateway and the physical routers. But establishing a BGP multihop directly with the external routers may not be straightforward, depending on your specific setup and the routing policies you intend to enforce. Ensure that the routers can handle eBGP multihop and configure the Tier-0 gateway to allow this type of connection.