Hi, On 3/21/22 04:23, Hean Seng wrote: > Hi > > Is anybody using VXLAN in their AdvanceNetowrking in production ? Any > experience to share ? >
Yes, we are using VXLAN in production with KVM and CloudStack for a few years now. > We are planning to set up Cloud Server for customers, and allow customers > to have direct connection to their cloud server (physical connection), > something like cloud-connect in AWS or GoogleCloud . > > VLAN isolation looks like the proper way of doing this, but it has a future > limitation of 4000 accounts per zone might be the trouble. VXLAN shall > solve this , but is a multicast network , and I am not sure if any > limitation is unforeseen. > Exactly for this reason (and more) we use VXLAN. It scales much better then VLANs do. I have done a few talks about this: - https://www.slideshare.net/ShapeBlue/deploying-cloudstack-and-ceph-with-flexible-vxlan-and-bgp-networking - https://www.youtube.com/watch?v=X02bxtIC0u4 - https://www.youtube.com/watch?v=ZKCuX9yRz7Y A few main points to think about: - Avoid VXLAN with Multicast and use BGP+EVPN - You need a modified version of the modifyvxlan.sh script [0] - Use FRR for BGP on the host - Cumulus Linux for Top-of-Rack switches are nice, but it's not mandatory Wido [0]: https://github.com/PCextreme/cloudstack/blob/vxlan-bgp-evpn/scripts/vm/network/vnet/modifyvxlan.sh > Anyone who has used VXLAN network implementation in Cloudstack, would > appreciate sharing the experiences . > > Thank you. >
