This is a sample of spine-leaf topology network that is called clos network. The network was invented by Charles Clos in 1952. Recently, a traditional three-tiered model based Layer 2 spanning-tree protocol is replaced by spine-leaf topology based Layer 3 routing in huge web service companies. Clos network has more redundancy and scalability that it's benefits for much East-West traffic environment.
- this sample is 4 spines and 4 leafs topology based Border Gateway Protocol.
- Using Vagrant and CumlusVX virtual switches.
- Vagrant
- CumlusVX 3.2.0
- 4GB RAM
| host | loopback | AS number |
|---|---|---|
| spine1 | 192.168.100.0/32 | 650000 |
| spine2 | 192.168.100.1/32 | 650001 |
| spine3 | 192.168.100.2/32 | 650002 |
| spine4 | 192.168.100.3/32 | 650003 |
| leaf1 | 192.168.100.4/32 | 650004 |
| leaf2 | 192.168.100.5/32 | 650005 |
| leaf3 | 192.168.100.6/32 | 650006 |
| leaf4 | 192.168.100.7/32 | 650007 |
| host1 | host1 address | host2 address | host2 |
|---|---|---|---|
| spine1 | 192.168.101.1/30 | 192.168.101.2/30 | leaf1 |
| spine1 | 192.168.101.5/30 | 192.168.101.6/30 | leaf2 |
| spine1 | 192.168.101.9/30 | 192.168.101.10/30 | leaf3 |
| spine1 | 192.168.101.13/30 | 192.168.101.14/30 | leaf4 |
| spine2 | 192.168.101.17/30 | 192.168.101.18/30 | leaf1 |
| spine2 | 192.168.101.21/30 | 192.168.101.22/30 | leaf2 |
| spine2 | 192.168.101.25/30 | 192.168.101.26/30 | leaf3 |
| spine2 | 192.168.101.29/30 | 192.168.101.30/30 | leaf4 |
| spine3 | 192.168.101.33/30 | 192.168.101.34/30 | leaf1 |
| spine3 | 192.168.101.37/30 | 192.168.101.38/30 | leaf2 |
| spine3 | 192.168.101.41/30 | 192.168.101.42/30 | leaf3 |
| spine3 | 192.168.101.45/30 | 192.168.101.46/30 | leaf4 |
| spine4 | 192.168.101.49/30 | 192.168.101.50/30 | leaf1 |
| spine4 | 192.168.101.53/30 | 192.168.101.54/30 | leaf2 |
| spine4 | 192.168.101.57/30 | 192.168.101.58/30 | leaf3 |
| spine4 | 192.168.101.61/30 | 192.168.101.62/30 | leaf4 |
http://blog.westmonroepartners.com/a-beginners-guide-to-understanding-the-leaf-spine-network-topology/
https://cumulusnetworks.com/blog/serverspec/
https://github.com/CumulusNetworks/cldemo-tests