diff --git a/README.md b/README.md
index c44984b..042c262 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,15 @@ Monitoring basic WHM/cPanel services.
 
 Template Device BigIP F5
 ======
-Monitoring of F5 BigIP network load balancer. It uses SNMP items to monitor basic device parameters (CPU/RAM usage, hardware failure, global traffic) and also it discovers network interfaces, storage, virtual servers and pools
+Monitoring of F5 BigIP network load balancer. It uses SNMP items to monitor basic device parameters (CPU/RAM usage, hardware failure, global traffic) and also it discovers network interfaces, storage, virtual servers and pools. It requires manual addition of value mappings (Administration -> General -> Value Mapping)
+
+F5 ltmPoolStatusAvailState	
+0 - Pool Error (code
+1 - Pool available (code
+2 - Pool member(s) are currently not available (code
+3 - Pool member(s) are down (code
+4 - Pool availability is unknown (code
+5 - Pool unlicensed (code
 
 Template Device Cisco ASA
 ======