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The communications environment
Structure and contents
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analysis phase applications portfolio average channel circuit-switched CMIP communications network communications requirements costs customers data communications data networks database device distribution end systems environment equipment Erlangs Ethernet example exponentially distributed facilities function GOSIP identified implementation information network integrated interconnected interface Internet suite ISDN layer leased line mainframe computer network analyst network capacity network configuration network design network management network planner network services NM tools nodes operation organisation OSIRM PABX packet packet-switched networks performance personal computers phase of SPIN planning private network protocol PSTN PTOs queue queuing response Scandania Training servers service-level requirements shown in Figure SNMP specific SSADM standards strategy phase subnet suppliers switching techniques telecommunications telephone terminal Token Ring topology traffic transaction transmission United Kingdom utilisation virtual circuit voice and data voice network WANs workloads