VXLAN

And since then, so much has been added to BGP and what it does and what its capabilities are just in that timeframe coming up on 20 years here.

We've added BGP so that it works in a data center, BGP so that it does EVPN, VXLAN now, it's the control plane.

We've added BGP flow spec.

These were all things that I never had to learn back in the day, even though once upon a time, I knew BGP at what was considered an expert level.

Well, now that we are doing modern day data centers, or maybe that's not the right word to use, but in my modern day, this is how we do data centers.

And typically, if you're doing EVPN or different types of fabrics, BGP works really well playing with those protocols.

Yeah, in the history of VXLAN, there was no control plane.

There was no way to share all the information that you needed to know about VXLAN, VXLAN destinations, VXLAN tunnel endpoints, and so on, and MAC addresses that you could find on the opposite sides of various tunnels.

And since then, so much has been added to BGP and what it does and what its capabilities are just in that timeframe coming up on 20 years here.

We've added BGP so that it works in a data center, BGP so that it does EVPN, VXLAN now, it's the control plane.

We've added BGP flow spec.

These were all things that I never had to learn back in the day, even though once upon a time, I knew BGP at what was considered an expert level.

Well, now that we are doing modern day data centers, or maybe that's not the right word to use, but in my modern day, this is how we do data centers.

And typically, if you're doing EVPN or different types of fabrics, BGP works really well playing with those protocols.

Yeah, in the history of VXLAN, there was no control plane.

There was no way to share all the information that you needed to know about VXLAN, VXLAN destinations, VXLAN tunnel endpoints, and so on, and MAC addresses that you could find on the opposite sides of various tunnels.

Our broadcasts are no longer very reliable because they get intercepted.

So certain network technologies, especially those that are utilizing VXLAN as the foundation, also have capabilities in the network to intercept and interact with broadcasts.

in order to remove those broadcasts from getting flooded out and taking CPU cycles on clients that don't need to know anything from those broadcasts.

With the advent of those overlay networks, so VXLAN or maybe a better known Cisco ACI as one specific vendor's example, app broadcasts became unreliable to detecting which port can physically reach which other port.

So we switched from our broadcasts to an IEEE standard CFM.

That's basically a broadcast protocol specifically designed for administrative and maintenance purposes to really detect this extent of where a broadcast really can go.