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Technology Overview

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Title: PowerPoint Presentation Author: Global Data & IP Product Team Description: This Deck Has Been MSO Approved Last modified by: Anthony P. Newton – PowerPoint PPT presentation

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Title: Technology Overview


1
Technology Overview Quality of Service
  • Quality of service (QoS) measures applications
    performance across a wide area network
  • Class of Service configurations are used to
    improve application performance
  • What jeopardizes applications performance?
  • Jitter
  • Latency
  • Throughput
  • QoS is only needed when congestion is present
  • On the ingress connection from your premises
  • On the egress connection from the network to your
    premises
  • Within the network

Ingress
Egress
Network
Egress
Ingress
2
Qwest iQ Networking QoS- Four Queues
Standardized QoS Across All Access Types
CPE
Priority 1 Traffic Priority 2 Traffic Priority 3
Traffic Priority 4 Traffic
MPLS Provider Edge (PE)
MPLS Core
CPE
CPE
CPE
  • Customers can segment and prioritize traffic
    based on business needs. Supports time-sensitive
    application through MPLS/IP QoS mechanisms
  • Customer CPE or application is responsible for
    marking and prioritizing IP traffic prior to
    sending it into the MPLS network
  • The prioritization occurs when the egress PE has
    more data to deliver than the customer-subscribed
    bandwidth can handle

3
Qwest iQ Networking QoS - Templates
Template Queuing Option Priority 1 Priority 2 Priority 3 Priority 4
0 (No QoS) 1 A 0 5 0 95
1 B 60 10 10 20
2 C² 80 10 0 10
3 C² 60 10 0 30
4 C² 60 10 15 15
5 C² 40 10 0 50
6 C² 40 10 25 25
7 C² 40 20 20 20
8 C² 20 10 0 70
9 C² 20 10 35 35
10 C² 20 20 20 40
11 D 25 25 25 25
12 D 60 10 10 20
13 D 40 20 20 20
Queue IPP Values that go into this Queue
Priority 1 5
Priority 2 4,6,7
Priority 3 2,3
Priority 4 0,1
  • ¹This is the default template
  • ²Queuing option C not available on Frame Relay or
    ATM access (Dedicated or Partner)

4
Qwest iQ Networking QoS - Queuing Methods
  • Queuing Option A First in, first out (FIFO)
  • Recommended if you dont need to prioritize one
    type of traffic over another
  • Queuing Option B Unlimited P1 bandwidth
  • Recommended only if you have a sophisticated
    understanding of your traffic types and flows and
    the implications of queue starvation that may
    occur
  • Queuing Option C P1 low latency
  • Recommended if you are using voice or video, but
    also have a need to conserve a minimum amount of
    bandwidth to other applications. This option
    should be considered the standard option if you
    have voice or video traffic and DIPA local loops
  • Option C is similar to Option B. The difference
    is this option limits the amount of bandwidth the
    P1 queue can consume to the percentage assigned
    to P1
  • Queuing Option D No special P1 queue treatment
  • Recommended for general use if you have Frame
    Relay and/or ATM access, including voice and/or
    video traffic. It is also recommended for use
    with DIPA where P1 should be allowed to burst to
    port speed

Queuing Options A, B and D are available with
Private Port and Enhanced Port, all access types.
Queuing Option C is available with Private Port,
Dedicated IP Access only.
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