Adding new topologies to mininet

Change-Id: Id1bafcd72e6f50d69b7985ded3947cb2eda774df
diff --git a/mininet/values.yaml b/mininet/values.yaml
index 8437a3f..0ec4521 100644
--- a/mininet/values.yaml
+++ b/mininet/values.yaml
@@ -30,7 +30,13 @@
 global:
   registry: ''
 
-resources: {}
+resources:
+  requests:
+    cpu: 0.5
+    memory: 256Mi # In case of deploying topology with 27 hosts (e.g., 2 by 3 fabric), please consider allocating at least 800 Mb of RAM
+  limits:
+    cpu: ~
+    memory: ~
 
 nodeSelector: {}