Update README.md
diff --git a/xos/configurations/cord-pod/README.md b/xos/configurations/cord-pod/README.md
index e423ec6..3d7a60f 100644
--- a/xos/configurations/cord-pod/README.md
+++ b/xos/configurations/cord-pod/README.md
@@ -78,7 +78,7 @@
They will have been put there for you by the cluster installation scripts.
**If your setup uses the CORD fabric**, you need to modify the autogenerated VTN
-configuration and edit `cord-vtn-vsg.yml` as follows.
+configuration and node tags, and edit `cord-vtn-vsg.yml` as follows.
1. The VTN app configuration is autogenerated by XOS. For more information
about the configuration, see [this page on the ONOS Wiki](https://wiki.onosproject.org/display/ONOS/CORD+VTN),
@@ -91,7 +91,13 @@
attributes and delete `rest_onos/v1/network/configuration/` in order
to get XOS to regenerate it.
- 2. Modify `cord-vtn-vsg.yml` and set these parameters to the
+ 2. The process of autoconfiguring VTN also assigns some default values to per-node parameters. Go to
+ http://xos/admin/core/node/, select a node, then select the *Tags* tab. Configure the following:
+ * `bridgeId` (the ID to set on the node's br-int)
+ * `dataPlaneIntf` (the data plane interface for the fabric on the node)
+ * `dataPlaneIp` (the IP address for the node on the fabric)
+
+ 3. Modify `cord-vtn-vsg.yml` and set these parameters to the
appropriate values for the fabric:
* `public_addresses:properties:addresses` (IP address block of fabric)
* `service_vsg:properties:wan_container_gateway_ip` (same as `publicGateway:gatewayIp` from VTN configuration)