Merge pull request #212818 from batamig/patch-243

removing grey borders

Author: prmerger-automator[bot]

articles/defender-for-iot/organizations/best-practices/sample-connectivity-models.md

@@ -13,21 +13,21 @@ This article provides sample network models for Microsoft Defender for IoT senso
 
 The following diagram shows an example of a ring network topology, in which each switch or node connects to exactly two other switches, forming a single continuous pathway for the traffic.
 
-:::image type="content" source="../media/how-to-set-up-your-network/ring-topology.png" alt-text="Diagram of the ring topology.":::
+:::image type="content" source="../media/how-to-set-up-your-network/ring-topology.png" alt-text="Diagram of the ring topology." border="false":::
 
 ## Sample: Linear bus and star topology
 
 In a star network, every host is connected to a central hub. In its simplest form, one central hub acts as a conduit to transmit messages. In the following example, lower switches aren't monitored, and traffic that remains local to these switches won't be seen. Devices might be identified based on ARP messages, but connection information will be missing.
 
-:::image type="content" source="../media/how-to-set-up-your-network/linear-bus-star-topology.png" alt-text="Diagram of the linear bus and star topology.":::
+:::image type="content" source="../media/how-to-set-up-your-network/linear-bus-star-topology.png" alt-text="Diagram of the linear bus and star topology." border="false":::
 
 ## Sample: Multi-layer, multi-tenant network
 
 The following diagram is a general abstraction of a multilayer, multitenant network, with an expansive cybersecurity ecosystem typically operated by an SOC and MSSP.
 
 Typically, NTA sensors are deployed in layers 0 to 3 of the OSI model.
 
-:::image type="content" source="../media/how-to-set-up-your-network/osi-model.png" alt-text="Diagram of the OSI model." lightbox="../media/how-to-set-up-your-network/osi-model.png":::
+:::image type="content" source="../media/how-to-set-up-your-network/osi-model.png" alt-text="Diagram of the OSI model." lightbox="../media/how-to-set-up-your-network/osi-model.png" border="false":::
 
 ## Next steps