ipv6-voip anil k naram a1263 cn426-svu. introduction ipv4 ipv6 voip ipv4 to ipv6 migration of voip...

IPV6-VOIP

ANIL K NARAMA1263

CN426-SVU

Introduction

• IPV4• IPV6• VOIP• IPV4 to IPV6• Migration of VOIP to IPV6

Introduction to IPV6

• Expanded addressing capabilities• Header format simplification• Improved support for extension headers• Flow labeling capability• Authentication and privacy

IPV6 Header Format

IPV6 Header Format

• Version Field• Traffic Class• Flow Label• Payload Length• Next Header• Hop Limit• Source and Destination Address

MIGRATING TO IPV6

• STAGE 1: IPV4 only networks.• STAGE 2:IPV6 islands connected through IPV4

network.• STAGE 3:Interconnection of IPV4/IPV6

networks.• STAGE 4:IPV4 islands connected through IPV6

network.• STAGE 5:IPV6 only networks.

Interconnecting IPV6 and IPV4 networks

TRANSITION METHODOLOGIES

• IPV4/IPV6 DUAL STACKS• TUNNELING

Tunneling mechanism for inter working IPV4& IPV6

Several types of IPV6-to-IPV4 tunnels

• MANUALLY CONFIGURED TUNNELS(MCT)• DYNAMIC 6TO4 TUNNELS• TEREDO TUNNELING

TEREDO TUNNELING

• Teredo Clients• Teredo Servers• Teredo Relays

Structure Of IPV6 Teredo address

TRANSLATING BETWEEN IPV4 AND IPV6 WITH NAT-PT

• COMM… IPV4 ONLY N/W WITH IPV6-ONLY

VOIP

• Typical Interconnection of VOIP and PSTN

Characteristics of several voice codecs

Voip Protocols

• MGCP(Media gateway control protocol)• SIP(Session Initiation Protocol)• H.323

Media Gateway Control Protocol

Typical MGCP EnvironmentMGCP Components:

• Endpoints• Gateways• Call Agents

SESSION INITIATION PROTOCOL

• Working Principle of SIP at a glance• Proxy Server• DNS Server• Location Server

Basic SIP trapezoid

Basic SIP flow label

H.323-PROTOCOL AT A GLANCE

• COLLECTION OF PROTOCOLS• Q.931• H.225• H.245

Protocol Relationships In H.323

Gatekeeper Routed Call Model In H.323

OTHER ISSUES

• DOMAIN NAMING SYSTEM IN IPV6• IPV6 APPLICATION TRANSITION ISSUES

IPV6 APPLICATION TRANSITION ISSUES

• SESSION INITIATION PROTOCOL(SIP) AND IPV6

• APPLICATIONS WITH IPV6 MIGRATION

IPV6/IPV4 network with Session Initiation Protocol

CONCLUSION

THANK YOU

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