added group variables for sites
diff --git a/group_vars/princeton.yml b/group_vars/princeton.yml
new file mode 100644
index 0000000..7c1e6ba
--- /dev/null
+++ b/group_vars/princeton.yml
@@ -0,0 +1,6 @@
+---
+# file: group_vars/princeton.yml
+
+mgmt_net_prefix: 192.168.100
+cloudlab: false
+