# Infrastructure and network

Infrastructure diagrams are used under pressure, usually by someone who did not draw them. That single fact should drive every choice: real names, real addresses, a date, and a link to the runbook.

Where the layout can be generated from text, generate it. It is the only way these stay current.

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## In this section

[Network diagramFrom one office to many sites.](https://help.gocapable.com/diagrams/network-diagram.html)

[Network topology diagramStar, mesh, bus, ring, and hybrids.](https://help.gocapable.com/diagrams/network-topology-diagram.html)

[Subnet and VLAN diagramAddresses that stay readable as they multiply.](https://help.gocapable.com/diagrams/subnet-and-vlan-diagram.html)

[Rack diagramElevations that match what is in the room.](https://help.gocapable.com/diagrams/rack-diagram.html)

[Data center diagramFloor, rows, racks, and power.](https://help.gocapable.com/diagrams/data-center-diagram.html)

[Packet and protocol headersBit offsets, drawn properly.](https://help.gocapable.com/diagrams/packet-and-protocol-headers.html)

[P&ID diagramPiping and instrumentation, with the right symbols.](https://help.gocapable.com/diagrams/p-id-diagram.html)

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## Everything under here

[Network diagramDraw a network diagram in Confluence, from a small office LAN to a multi site topology.](https://help.gocapable.com/diagrams/network-diagram.html)[Network topology diagramDiagram star, mesh, bus, ring and hybrid topologies and pick the notation that suits each one.](https://help.gocapable.com/diagrams/network-topology-diagram.html)[Subnet and VLAN diagramDocument subnets, VLANs and IP allocation with a network diagram that stays readable as it grows.](https://help.gocapable.com/diagrams/subnet-and-vlan-diagram.html)[Rack diagramDraw a server rack elevation with units, depth and equipment labels, next to the runbook.](https://help.gocapable.com/diagrams/rack-diagram.html)[Data center diagramLay out a data center floor, rows, racks and power, and link each rack to its own elevation.](https://help.gocapable.com/diagrams/data-center-diagram.html)[Packet and protocol headersDraw a protocol header with bit offsets and field widths for TCP, custom protocols or binary formats.](https://help.gocapable.com/diagrams/packet-and-protocol-headers.html)[P&ID diagramDraw a piping and instrumentation diagram in Confluence with the shipped valve and instrument shapes.](https://help.gocapable.com/diagrams/p-id-diagram.html)

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_Somebody will read this at 3am. Be kind._