Instructions for setting up dataplane
diff --git a/xos/configurations/cord/README.md b/xos/configurations/cord/README.md
index 4d64953..a731251 100644
--- a/xos/configurations/cord/README.md
+++ b/xos/configurations/cord/README.md
@@ -47,9 +47,9 @@
* Wait until you get an email from CloudLab with title "OpenStack Instance Finished Setting Up".
* Login to the *ctl* node of your experiment and run:
```
-$ git clone https://github.com/open-cloud/xos.git
-$ cd xos/xos/configurations/cord/
-$ make
+ctl:~$ git clone https://github.com/open-cloud/xos.git
+ctl:~$ cd xos/xos/configurations/cord/
+ctl:~/xos/xos/configurations/cord$ make
```
Running `make` in this directory creates the XOS Docker container and runs the TOSCA engine with `cord.yaml` to
@@ -66,6 +66,31 @@
ONOS app for the vCPE. To verify that it has received an IP address mapping, look at the **Routeable subnet:** field in
the appropriate *Vbng tenant* object in XOS. It should contain an IP address in the 10.254.0.0/24 subnet.
+After launching the ONOS apps, it is necessary to configure software switches along the dataplane so that ONOS can control
+them. To do this, from the `cord` configuration directory:
+```
+ctl:~/xos/xos/configurations/cord$ cd dataplane/
+ctl:~/xos/xos/configurations/cord/dataplane$ ./gen-inventory.sh > hosts
+ctl:~/xos/xos/configurations/cord/dataplane$ ansible-playbook -i hosts dataplane.yaml
+```
+
+Currently the vOLT switch is not forwarding ARP and so it is necessary to set up ARP mappings between the client
+and vCPE. Log into the client and add an ARP entry for the vCPE:
+```
+client:$ sudo arp -s 192.168.0.1 <mac-of-eth1-in-vCPE-container>
+```
+Inside the vCPE container add a similar entry for the client:
+```
+vcpe:$ arp -s 192.168.0.2 <mac-of-br-sub-on-client>
+```
+At this point you should be able to ping 192.168.0.1 from the client. The final step is to set the
+vCPE as the gateway on the client:
+```
+client:$ sudo route del default gw 10.11.10.5
+client:$ sudo route add default gw 192.168.0.1
+```
+The client should now be able to surf the Internet through the dataplane.
+
## How to log into ONOS
The ONOS Docker container runs in the VMs belonging to the *mysite_onos* slice. All ports exposed by the ONOS container are forwarded to the outside, and can be accessed from the *ctl* node using the `flat-lan-1-net` address of the hosting VM. For example, if the IP addresss of the VM is 10.11.10.30, then it is possible to SSH to ONOS as follows (password is *karaf*):