End to End QoS in IP Networks
- Duration: 2 days or 12 hours
- Level: Level 1
End to End QoS in IP Networks
Divided into 9 sections, the topics covered will include:
Section 1: What is QoS? (1 hour)
- Measuring QoS.
- Quality of Experience.
- Objective Testing and “On Network” QoS Analysis Techniques.
- Subjective Testing, Mean Opinion Score.
- The ITU Initiatives to Standardize QoS Based Measuring.
Section 2: What Impacts on QoS? (1 hour)
- Issues that impact on QoS.
- Data processing issues including codecs, packetization and transcoding.
- The effects of jitter and delay.
- Error Rates on the Various Real-time and Non Real-time Media Streams supported in IP Networks.
Section 3: QoS Concepts (1.5 hours)
- Generic Architecture to Support QoS in Packet Networks.
- Traffic Shaping and Policing, Queue and Congestion Management and Policy.
- Service Level Agreements, Compression Techniques and Bandwidth Management.
- Applying QoS to Network Routers, Switches and Session Border Controllers.
Section 4: QoS At Layer 3 (1.5 hours)
- IP DiffServ and IntServ Architecture, Functions of the QoS Aware Router.
- IP Traffic Classes, Per Hop Behaviour, Assured Forwarding and Expedited Forwarding.
- RSVP, Establishing RSVP Paths and QoS Based Virtual Circuits.
- Planning QoS in IPv4 and IPv6 Networks.
Section 5: QoS in Ethernet Networks (1.5 hours)
- Ethernet as a Carrier Class Layer 2 Protocol, Metro Ethernet and Carrier Ethernet.
- Planning an Ethernet Deployment using VLANs, VLAN Colour Codes, the use of Switches and Routers in VLAN Planning.
- VLAN Tagging, IEEE 802.1p and IEEE 802.1Q.
- Traffic Mapping using the Ethernet Priority Bits.
Section 6: QoS in Wide Area Networks (1 hour)
- Wide Area All IP Networks, Pre-aggregation and Aggregation Points, End-to-End Network Planning Considerations.
- MPLS, Deployment over SDH and Carrier Ethernet, Typical Solutions using PPP etc.
- Operation of MPLS and Features, QoS Based on DiffServ, Fast Re-Route, RSVP and MPLS TE.
- Pseudowire Edge to Edge Emulation, Deploying Pseudowires in Today’s Telecoms Networks.
- Clocking, Frequency and Phase Recovery Issues in an IP WAN.
Section 7: QoS in 3G Radio Access Networks (1.5 hours)
- Current 3G UMTS QoS Architecture based on ATM, Considerations when Migrating to IP.
- The R4 Core Network, the Role of MPLS, IP and PWE3.
- IP in the RAN, QoS Considerations.
- Establishment of QoS Based Packet Radio Access Bearers and Significance of the PDP Context.
- Mapping Traffic Classes across the Radio and Core element of the UMTS Network, the Function of the UMTS QoS Schedulers, Bearer Managers.
Section 8: QoS in 4G Radio Access Networks (1.5 hours)
- The IP QoS Architecture in WiMAX Access Networks, the Role of Ethernet, GRE and IP QoS Mechanisms.
- AAA, Policy Invocation and Distribution for WiMAX Multimedia Services, WiMAX Service Flows, Establishment of WiMAX Service Flows. WiMAX QoS Classes; UGS, ertPS, rtPS, nrtPS and Best Effort.
- LTE QoS Architecture, the Role of Ethernet and IP in the E-UTRAN and EPC.
- LTE QoS Policy and Charging Rules Architecture, Distributing QoS Policy, LTE’s 9 QoS Classes, EPS Bearers and EPS Bearer Establishment.
Section 9: QoS in the IMS (1.5 hours)
- Service Enablers and IMS Architecture, CSCF, HSS, PCRF, PCEF and AS.
- Role of SIP in QoS, SIP Methods, SDP and Preconditions.
- QoS Based Sessions within the Bearer Network, Service Based Local Policy and Policy and Charging Control.
- Interaction between the Application Server and the Policy Functions to Enforce Network Policy.
QoS (Quality of Service) is one of the main issues involved in deploying IP as the principle transmission protocol in today’s telecoms networks. This course examines how QoS can be measured in IP networks as well as the techniques and protocols that have been developed in order to deliver it. Deployment of IP QoS in mobile and fixed networks is also detailed including 3G and 4G based architectures. Those attending should have a good understanding of IP, as would be gained from mpirical’s IP for the NGN course.
Who Should Attend
Project Managers, Support and Technical Staff involved in the development and deployment of IP based networking technology who require an insight into the QoS mechanisms used in these networks.