Here are a couple of rules I typically follow when labeling the connectors: The exception to this rule is non-routable subnets (like heartbeat or vMotion), where the VLAN exists on a switch, but the switch has no layer-3 presence in this case, use a dot or dash patterned connector.Įach connector is labeled with its IP information specific to that VLAN. There is no need in this diagram for different colored connectors, so always use a solid black pattern. ConnectorsĬonnectors in a logical diagram connect a device to a subnet and represent a layer-3 (or sometimes layer-2) presence on the subnet. These different pieces of information are distinguished on the subnet with different font types. When this is not the case (like with a point-to-point link between two routers), omit the VLAN ID and name and include only the subnet. The VLAN name and ID information assume that the subnet is contained within a VLAN on a switch. There are three important pieces of information to hold in a subnet object: VLAN Name, VLAN ID, and assigned IP block in CIDR format. They represent an IP network where nodes can hold 元 addresses and communicate via IP. Subnets are the cornerstone of a logical network diagram. I am also including the most common icons in the template linked at the top of the page.
#Visio network stencils generic download#
You can download a library here or visit the Network Topology Icons Homepage. My favorite resource for generic topology icons is Cisco. I prefer, instead, to use generic icons which represent different types on network devices in a network. Keeping that in mind, I propose that it doesn’t make sense to use a physical network device stencil, which is essentially a picture of the actual device (with ports, fans, rack ears…), in a logical diagram.
Stencils in a logical diagram should be, obviously, logical representations of the network nodes.
You can download this article’s template file using the link to the right. So I just call them “Physical” and “Logical” to avoid the confusion. It also removes the assumption (made by many non-technical people) that “L1” and “元” diagrams are incomplete without a “L2” diagram. As I also said in the Physical Diagram article: I prefer to use the term “logical” instead of “元” because it is more easily understood by somebody unfamiliar with the OSI model. In this article, I will do a walk-through of a logical network diagram.
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