Site survey considerations

Network infrastructure

This part of the survey involves verifying the existing equipment and functionality, to ensure that the network does what it needs to do, and to make sure the system will support future needs. Also check whether the system will support advanced features that might be required, such as Quality of Service (QoS), Power over Ethernet (PoE), and Virtual Local Area Networks (VLANs).

Also certify the existing cabling, to ensure that it is future-proof, and that it has sufficient capacity to handle the network load. Verify the performance by using network certification tools.

When creating a network, always use a star or redundant star topology, since these provide a minimized network load on each switch, a reduced load on the server, and a high level of redundancy. Never use a daisy chain infrastructure, as this is a vulnerable setup, with potential bottleneck issues and low redundancy.

Figure 5. Star topology

Power over Ethernet (PoE)