Documenting information assets within your organization is very essential as part of the information security management system. One of the important parts in your documentation is network wiring. By having a network wiring, you can mark the critical assets that you need to make disaster recovery plan for your business continuity in case of disaster. Network wiring is also very important as a reference document in configuring the network by the network engineer during the network setup. Network wiring is also used as reference document for the technician when the network problem occurs.
There are many common icons you can use when developing a network wiring, the common icons which are widely used in describing network devices.
Routers
Icon #1 is network wiring icon for router. Routers connect multiple networks with different network addresses. Routers are hardware and software devices that connect networks with different network addresses. Routers operate at network layer in the OSI model. Routers can connect networks of different architectures, but they do not translate between networks using different upper-layer protocols. Use gateway to provide this translational capabilities.
Network Wiring Standards
ATM Switch / ATM Router / ATM fast-Giga Switch
Asynchronous Transfer Mode (ATM) provides data link layer services that run over SONET
Layer 1 links. SONET is Synchronous Optical Network defines an alternative Layer 1 signaling and encoding mechanism. The motivation behind SONET was to allow the phone companies of the world to connect their COs with high-speed optical links. SONET provides the Layer 1 details of how to pass high-speed data over optical links.
ATM has a wide variety of applications, but its use as a WAN technology has many similarities to Frame Relay. When using ATM, routers connect to an ATM service via an access link to an ATM switch inside the service provider’s network. For multiple sites, each router would need a single access link to the ATM network, with a VC between sites as needed. ATM can use use permanent VCs (PVCs) like Frame Relay. In fact, the basic concepts between Frame Relay and ATM are identical.
Icon # 2 is network wiring icon for ATM Switch, the switch that has the ATM capabilities. So do ATM router and ATM Fast/ Giga Switch, they have the ATM capabilities.
ISDN Switch
Icon # 5 is the network wiring icon for ISDN Switch. Local loop from the customer (home) connects to a device called an ISDN switch at the CO (central Office) of the Telco Company. ISDN devices send and receive signaling messages to and from the local ISDN switch to which it is connected. In telco terminology, signaling refers to any type of request to establish a circuit.
Switch
Icon # 6 is the network wiring icon for the Switch. Switch is a pure layer 2 device in the OSI model. LAN switches greatly improve the throughput of Ethernet networks. They allow the migration to mixed 10/100 Mbps and higher speeds, and greatly reduce the impact of data collisions on the LAN. Intelligent switches offer numerous performance and management advantages, including the definition of virtual LANs (VLANs) and the ability to perform multicast control (necessary for video conferencing applications). Many switches also support the ability to perform special link aggregation which can provide additional bandwidth to the LAN when required.
By using these icons, you can develop network wiring for your computer networking infrastructure for your organization. By having the network wiring of your organization, you can easily identify the critical assets and will help you develop the risk assessment.
see also:
- computer networking diagram
- computer networking hardware
- computer networking in home or SOHO
- Small business networking security
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