Introduction to Virtual Extensible LAN (VXLAN)

Lessons Discussion
12

Hi
Thanks for this lesson.

<Traditional layer 2 networks have issues because of three main reasons:

Spanning-tree.
Limited amount of VLANs.
Large MAC address tables.>

My understanding is as follows. Could you please explain ?

  1. Spine-leaf topology solved the Spanning tree issue. STP is not an issue in VxLAN.
  2. Limited amount of VLANs : This is the essential why vxlan needs.
  3. Large MAC address tables : I’am not sure how vxlan solve this problem. This issue is common in virtualization.

Spine-leaf was not ip network. It becomes ip underlay to bind MAC learning to a multicast group and to deliver VxLAN frame efficiently. Is it true ?

Thanks
Michael