diff --git a/start_example_chain b/start_example_chain
index 8ec8a1f..935a766 100755
--- a/start_example_chain
+++ b/start_example_chain
@@ -3,9 +3,9 @@
 
 # deploy VNFs
 cd emuvim/cli/
-./son-emu-cli compute start -d dc1 -n tsrc -i traffic_source -c ./start.sh
-./son-emu-cli compute start -d dc2 -n fw -i firewall -c ./start.sh
-./son-emu-cli compute start -d dc3 -n tsink -i traffic_sink -c ./start.sh
+./son-emu-cli compute start -d datacenter1 -n tsrc -i traffic_source -c ./start.sh
+./son-emu-cli compute start -d datacenter2 -n fw -i firewall -c ./start.sh
+./son-emu-cli compute start -d long_data_center_name3 -n tsink -i traffic_sink -c ./start.sh
 
 # setup links in the chain
 ./son-emu-cli network add -src tsrc -dst fw