What are most people using VXLAN for?

[carl_townshend]

Hi All

I would like to know what the most common use case is for VXLAN these days? are most people using it for tunnelling vlans between sites?

Cheers

[balaji.bandi]

Virtual extensive local area network (VXLAN) is a protocol for running a Layer 2 network and stretching it over a Layer 3 network.

in traditional VLAN you can have max of 4K LVAN, with VXLAN you can mitigate this issue in bigger network. L2 STP Loops gone.

SD-Access Mainly use VXLAN as data plan over LISP as controlplan.

more information can be find :

https://blogs.cisco.com/datacenter/vxlan-taking-a-more-strategic-role-in-cloud-networks-with-support-across-cisco-fabrics-and-switching-platforms

[carl_townshend]

Hi Balaji

I thought it was the case,

are people generally mapping the vlan to a single vni or mapping multiple vlans to a vni? any reason you would choose one over the other?

also am I right saying that the vni number has to start from 4096 to 16,777,215 ? so for example I would have to map vlan 10 to 4096 and not vlan 10 to vni 10?

cheers