update HTTP listeners

Author: vhorne

includes/application-gateway-limits.md

@@ -2,7 +2,7 @@
 author: vhorne
 ms.service: application-gateway
 ms.topic: include
-ms.date: 6/5/2019
+ms.date: 03/04/2020
 ms.author: victorh
 ---
 | Resource | Default/maximum limit | Note |
@@ -12,7 +12,7 @@ ms.author: victorh
 | Front-end ports |100<sup>1</sup> | |
 | Back-end address pools |100<sup>1</sup> | |
 | Back-end servers per pool |1,200 | |
-| HTTP listeners |100<sup>1</sup> | |
+| HTTP listeners |200<sup>1</sup> |Limited to 100 active listeners that are routing traffic. Active listeners = total number of listeners - listeners not active.<br>If a default configuration inside a routing rule is set to route traffic (for example, it has a listener, a backend pool, and HTTP settings) then that also counts as a listener.|
 | HTTP load-balancing rules |100<sup>1</sup> | |
 | Back-end HTTP settings |100<sup>1</sup> | |
 | Instances per gateway |V1 SKU - 32<br>V2 SKU - 125 | |