The animated TECHTip Tutorial is available here.

This is an introduction to the planning for QoS [Quality of Service]. QoS is not a single element or single approach. This approach was developed after many months of research but does not include all the issues required. This is more of a framework to begin a dialog. That is, QoS has many hundreds of elements to understanding, evaluating, and deciding.

QoS is really building a plan for QoS at all points. Think of everything in terms of QoS. Number four in the top ten areas is:

• Edge Zone QoS
  • Coming from User Zone

• Edge Zone Management
  • Coming from Building Zone
    • Local servers/switches

• Going to Access Zone

• LAN-MAN-WAN interface
  • LAN [Local Area Network]

  • MAN [Metropolitan Area Networks]
  • WAN [Wide Array of Networks]

• Protocol “latency” Zones - Layer 2-3

• IP - QoS or no QoS
• MPLS [Multi-Protocol Label Switching]
• ATM - QoS “built-in”
• Constant/available bit rates
• LAN interface - 802.1p/q
• Security Access Zone
• LAN-MAN-WAN - firewall
• Remote - dial back, PAP, CHAP
  • Password and challenge access
• Mobile access - “letting roadies in”
• Wiring Zone - SONET-DWDM - Layer 1
• Performance Zones - Layer 3-4
• Switches - voice/data
• Routers - voice/data
• Servers - load balancing
• SANs [Storage Area Networks]

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[tags]multi-protocol label switching,qos,quality of service,edge zone,lan-man-wan[/tags]