Layer-2 fabric example

Author: ipspace

VLAN/l2-fabric/README.md

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+# Layer-2 Fabric
+
+This directory contains *netlab* topology file for a leaf-and-spine layer-2 fabric.
+
+![Lab topology](topology.png)
+
+After starting the lab, h1 and h2 should be able to ping each other.
+
+## Changing Device Types
+
+This topology can be used with all network devices supporting VLAN configuration module and all virtualization providers supported by *netlab*:
+
+* To change the switch device type, use `-d <device>` CLI argument
+* To change the virtualization provider, use `-p` CLI argument.
+
+For example, to start the lab with Cisco IOSv devices, use:
+
+```
+netlab up -p libvirt -d iosv
+```

VLAN/l2-fabric/graph.dot

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+graph {
+  bgcolor="transparent"
+  node [shape=box, style="rounded,filled" fontname=Verdana]
+  edge [fontname=Verdana labelfontsize=10 labeldistance=1.5]
+  "l1" [
+    label=<l1 [eos]<br /><sub>10.0.0.1/32</sub>>
+    fillcolor="#ff9f01"
+  ]
+  "l2" [
+    label=<l2 [eos]<br /><sub>10.0.0.2/32</sub>>
+    fillcolor="#ff9f01"
+  ]
+  "s1" [
+    label=<s1 [eos]<br /><sub>10.0.0.3/32</sub>>
+    fillcolor="#ff9f01"
+  ]
+  "s2" [
+    label=<s2 [eos]<br /><sub>10.0.0.4/32</sub>>
+    fillcolor="#ff9f01"
+  ]
+  "h1" [
+    label=<h1 [linux]<br /><sub>172.16.0.5/24</sub>>
+    fillcolor="#ff9f01"
+  ]
+  "h2" [
+    label=<h2 [linux]<br /><sub>172.16.0.6/24</sub>>
+    fillcolor="#ff9f01"
+  ]
+  "l2-fabric_1" [style=filled fillcolor="#d1bfab" fontsize=11 label="172.16.0.0/24"]
+ "l1" -- "l2-fabric_1" [  ]
+ "s1" -- "l2-fabric_1" [  ]
+  "l2-fabric_2" [style=filled fillcolor="#d1bfab" fontsize=11 label="172.16.0.0/24"]
+ "l2" -- "l2-fabric_2" [  ]
+ "s1" -- "l2-fabric_2" [  ]
+  "l2-fabric_3" [style=filled fillcolor="#d1bfab" fontsize=11 label="172.16.0.0/24"]
+ "l1" -- "l2-fabric_3" [  ]
+ "s2" -- "l2-fabric_3" [  ]
+  "l2-fabric_4" [style=filled fillcolor="#d1bfab" fontsize=11 label="172.16.0.0/24"]
+ "l2" -- "l2-fabric_4" [  ]
+ "s2" -- "l2-fabric_4" [  ]
+  "l2-fabric_5" [style=filled fillcolor="#d1bfab" fontsize=11 label="172.16.0.0/24"]
+ "l1" -- "l2-fabric_5" [  ]
+ "h1" -- "l2-fabric_5" [  ]
+  "l2-fabric_6" [style=filled fillcolor="#d1bfab" fontsize=11 label="172.16.0.0/24"]
+ "l2" -- "l2-fabric_6" [  ]
+ "h2" -- "l2-fabric_6" [  ]
+}

VLAN/l2-fabric/topology.png

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+provider: clab
+defaults.device: eos
+
+nodes: [ l1, l2, s1, s2, h1, h2 ]
+module: [ vlan ]
+
+groups:
+  hosts:
+    members: [ h1, h2 ]
+    device: linux
+
+vlans:
+  fabric:
+    id: 100
+    mode: bridge
+
+links:
+- l1:
+  s1:
+  vlan.access: fabric
+- l2:
+  s1:
+  vlan.access: fabric
+- l1:
+  s2:
+  vlan.access: fabric
+- l2:
+  s2:
+  vlan.access: fabric
+- l1:
+  h1:
+  vlan.access: fabric
+- l2:
+  h2:
+  vlan.access: fabric

VLAN/l2-fabric/topology.yml

@@ -1,6 +1,6 @@
 # VLAN Trunk
 
-This directory contains *netlab* topology file for a simple VLAN trunk scenario with a two VLANs stretched across two switches.
+This directory contains *netlab* topology file for a simple VLAN trunk scenario with a two VLANs stretched across two switches. Both switches are running IRB on both VLANs.
 
 ![VLAN trunk topology](vlan-trunk.png)