Changes between Initial Version and Version 1 of Internal/OpenFlow/VLANstitching

Timestamp:

Mar 8, 2012, 10:30:35 PM (14 years ago)

Author:

akoshibe

Comment:

—

Internal/OpenFlow/VLANstitching

@@ +1 @@
+= VLAN stitching on the (Tunneling) NetFPGA !OpenFlow Switch = 
+This page describes how VLAN stitching can be implemented on a NetFPGA running the Tunneling !OpenFlow bitfile (of1). 
+== Topology ==
+The NetFPGA bridges two VLANs, 5 and 3733. The connections are as follows:
+ * of1:nf2c1 <---- VLAN 5 ---> sw-top:geth0/15
+ * of1:nf2c2 <-- VLAN 3733 --> sw-outside:geth0/34
+These VLANs were stitched together by pushing flow rules to of1 from `kvm-big`, running the Big Switch controller. 
+
+== Configurations ==
+`of1` shows up as DPID 00:00:00:23:20:08:0f:f7 on `kvm-big`. On `of1`, this is the MAC address of interface tap0. [[BR]]
+The following flow entries are created for `of1`'s DPID on `kvm-big`:
+{{{
+  flow-entry port-c1
+    active True
+    ingress-port 2
+    vlan-id 5
+    actions set-vlan-id=3733,output=3
+  flow-entry port-c2
+    active True
+    ingress-port 3
+    vlan-id 3733
+    actions set-vlan-id=5,output=2
+}}}  
+
+This is done from the CLI, in config-switch mode. 
+{{{
+kvm-big> en 
+kvm-big# conf
+kvm-big(config)# switch 00:00:00:23:20:08:0f:f7
+kvm-big(config-switch)#
+}}}
+
+Setting flow entries from the `config-switch` context is a matter of copy/pasting each line from the first quote block above. Key points are:
+ * 'active True' must be specified to enable the flow policy since the default for any newly created flow is 'active False'
+ * at least one layer 2 or lower constraint e.g. ingress/egress port or src/dst MAC must be specified
+ * there should be no white-spaces between the actions list. 
+
+=== sanity checks ===
+For the sake of sanity checking, IP addresses were assigned to the VLAN interfaces for 5 and 3733 on sw-top and sw-outside, respectively. If successful, pings will work between the two VLAN interfaces.