The Scenario
A retail head office in Durban has 120 IP desk phones sharing a single 200Mbps fiber internet connection with normal web browsing, YouTube streaming, and SQL replication. Users report choppy voice calls, dropped connections, and delay during busy periods. The switches are unmanaged or poorly configured.
The Brief
Design a modern, segregated voice network layout with specific switch/router QoS configurations to guarantee crystal-clear calls even under high network load.
Deliverables
- A network segregation plan specifying Voice VLANs, IP subnetting ranges, and DHCP configurations supporting LLDP-MED for auto-provisioning
- A switch-level and router-level QoS configuration blueprint, outlining exactly how 802.1p (CoS) and DSCP markings are trusted, rewritten, and prioritized
- A bandwidth and codec mathematical analysis comparing G.711 and G.729 bandwidth requirements for 120 concurrent call scenarios
- A monitoring plan detailing metrics like packet loss, jitter limits, and Mean Opinion Score (MOS) targets to measure call quality
Submission Guidance
Do not write vague statements like "configure QoS". Provide the actual CLI command concepts (e.g. Cisco MLS/MQC commands or generic firewall queuing configurations) showing how queue mappings are defined and priority queue is allocated.
Submit Your Work
Your submission is graded against the rubric on the right. If you pass, you get a public Badge URL you can share on LinkedIn. There is no draft save, so work offline first and paste your finished response here.