Ipv6 over broadband service models
This presentation is the property of its rightful owner.
Sponsored Links
1 / 30

IPv6 over Broadband Service Models PowerPoint PPT Presentation


  • 71 Views
  • Uploaded on
  • Presentation posted in: General

IPv6 over Broadband Service Models. Mark Williams 魏迈凯 Academic Networking Liaison, Asia Pacific [email protected] IPv6 over Broadband Services – Target Market and Service Requirements. Carriers in APAC want to run IPv6 across their broadband networks

Download Presentation

IPv6 over Broadband Service Models

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Ipv6 over broadband service models

IPv6 over Broadband Service Models

Mark Williams 魏迈凯

Academic Networking Liaison,

Asia Pacific

[email protected]


Ipv6 over broadband services target market and service requirements

IPv6 over Broadband Services – Target Market and Service Requirements

  • Carriers in APAC want to run IPv6 across their broadband networks

  • Most interest so far in Japan due to Government technology push & funding for IPv6 development

  • Interest is also growing in other APAC countries including Korea, India, China, Taiwan, etc.

  • There have emergedTwo IPv6 over Broadband standards :

    • NTT Com, ACCA, KDDI etc in Japan are running or trialling PPP based IPv4 and IPv6 “Dual Stack” BRAS

    • NTT East / West / SI Labs is building a whole new nationwide network and they want Non-PPP based services.


Technical service details for ipv4

Technical Service Details for IPv4

  • PPP-Based Services

  • Non PPP-Based Services


Ipv4 standards

IPv4 Standards

  • Business broadband – generally uses Bridged or Routed 1483 for static, always-on service models.

  • Subscriber services are based on either PPPoE or DHCP.

  • Point to Point Protocol over Ethernet (PPPoE) based on PPP, extended by RFC 2516

  • Dynamic Host Configuration Protocol (DHCP) is based on work in BootP, extended by RFC 1541, usually implemented as compliant to RFC 2131.


Protocol design intentions

Protocol Design Intentions

  • PPPoE

    • PPPoE is designed to establish a WAN connection to a remote client. PPPoE extends PPP to Ethernet, providing for authentication, authorization, accounting and network layer configuration.

  • DHCP

    • DHCP is designed to supply DHCP clients (usually in a broadcast domain i.e. LAN) with network configuration parameters.


Summary ipv4 bras service models

PPP-based model

Requires PPPoE client software or CPE device

Session based service model

User authentication & accounting information present

Radius based AAA

Leverages LCP and IPCP protocols

Non PPP-based model

Business services

Bridged / Routed 1483 services

Subscriber Services

DHCP based broadband remote access

Good for lightweight clients

Requires many add-ins to DHCP to allow AAA, session monitoring, accounting, etc etc etc etc….

Summary - IPv4 BRAS Service Models


Ipv6 over broadband technical service details

IPv6 over BroadbandTechnical Service Details

  • PPP-Based Services

  • Non PPP-Based Services


The ppp oe dual stack

RADIUS

The PPPoE Dual Stack

Carrier

IPv4 and IPv6 Network

Layer 2Access

VC or VLAN

Layer 2 or Layer 3 CPE device

ERX IPv4/IPv6 Edge Router

IPv4 and / or IPv6 devices

Simultaneous Support for IPv4 and IPv6 traffic over a single PPP connection


Dual stack p rotocol layers

“Dual Stack”Protocol Layers

IPv4

Applications

IPv6

Applications

}

IPv4

IPv6

  • Based on PPP(oX)

  • One PPP Session

  • Two Layer 3 Protocols

PPP

PPPoE or

PPPoA

ATM or

Ethernet


More detail ipv4 connection setup

More detail – IPv4 Connection Setup

  • NCP - IPCP used for :

    • IP address assignment – via Local pools or Radius

    • DNS Server addresses, etc

    • etc

IPv4 /

IPCP

PPP / LCP

  • PPP - LCP used for :

    • user authentication

    • connection establishment

    • connection maintenance / monitoring

PPPoE or

PPPoA

ATM or

Ethernet


Notes about ipv6 connection setup

Notes about IPv6 Connection setup:

  • NCP – IPv6CP used only for exchange of Link-Local addresses - not much use at all in a BRAS environment.

  • JunosE development started in 2002 while specifications were Internet Drafts but they are now RFCs :

    • DHCPv6 – draft-ietf-dhc-dhcp6-26.txt  RFC 3315

    • draft-troan-dhcpv6-opt-prefix-delegation-01.txt RFC 3633

    • draft-ietf-dhc-dhcpv6-opt-dnsconfig-03 RFC 3646


How else can the ppp oe model be used

How else can the PPPoE model be used ?

Carrier

IPv4 and IPv6 Network

Layer 2Access

VC or VLAN

Layer 2 CPE device

ERX IPv4/IPv6 Edge Router

IPv4 and / or IPv6 devices

  • Native Client device support for both IPv4 and IPv6 over single PPP stack

  • Eg - simply extend the existing Windows XP PPPoE client to support IPv6

  • Eg Windows “VISTA” 2007?


Technical service details

Technical Service Details

  • PPP-Based Services

  • Non PPP-Based Services


The non ppp model

The Non-PPP model

Carrier

IPv4 and IPv6 Network

Layer 2Access

VC or VLAN

Layer 2 or Layer 3 CPE device

ERX IPv4/IPv6 Edge Router

IPv4 and / or IPv6 devices

  • Prefixes statically provisioned on user facing interface (VC / VLAN)

  • DHCP-PD and opt-DNS could also be used without PPP

  • ND / RA could also be used to advertise prefixes over Ethernet access

    • How to do DNS in this case ?

  • Less protocol overhead due to no PPP – BUT – bit of a drag due to lost functionality (user auth, accounting, session monitoring, etc)


Prefix assignment in the non ppp model layer 3 cpe case

Prefix Assignment in the Non-PPP model - Layer 3 CPE Case

Carrier

IPv4 and IPv6 Network

Layer 2Access

VC or VLAN

Layer 3 CPE device

ERX IPv4/IPv6 Edge Router

IPv4 and / or IPv6 devices

  • IPv6 connection setup :

  • DHCP-PD & Opt-DNS – directly over Ethernet

  • IPv4 connection setup :

  • PPPoE

  • ND / RA

  • (requires gateway router to be a DNS Proxy )


Ipv6 over broadband service models

Layer 3 CPE - Details

  • Prefixes statically provisioned on the BRAS

    • One Prefix per access subinterface (VC / VLAN)

  • DHCP-PD and opt-DNS used between BRAS and CPE router

  • CPE initiates DHCPv6 exchange to BRAS

    • Requests IPv6 Prefix via DHCP-PD

    • Requests DNSv6 info via Opt-DNS

  • BRASresponds with configured values

  • ND / RA used to assign IPv6 addresses to IPv6 devices behind CPE Router.


Prefix assignment in the non ppp model layer 2 cpe case

Prefix Assignment in the Non-PPP model - Layer 2 CPE Case

Carrier

IPv4 and IPv6 Network

Layer 2Access

VC or VLAN

Layer 2 CPE device

ERX IPv4/IPv6 Edge Router

IPv4 and / or IPv6 devices

  • Neighbor Discovery

  • Router Advertisement

  • (some sort of DNS info exchange?)


Ipv6 bras service model summary

PPP based

Requires Dual Stack (IPv4/v6) PPPoE client or device

Session based service model

User authentication & accounting information present

Radius based AAA

Leverages DHCP-PD and opt-DNS

Non PPP-based

DHCP-PD or ND/RA can be used in the access network

No native authentication or accounting

More suitable to “always-on” service

IPv6 BRAS Service Model Summary


Ipv6 services and products in use today

IPv6 Servicesand ProductsIn Use Today


Juniper ipv6 firewall and b ras

Juniper IPv6 Firewall and B-RAS

NS 5XT

IPv6 CPE Firewall

ERX IPv4/IPv6 B-RAS

Broadband Access

IPv4

IPv6

IPv4 and / or IPv6 devices

IPv4

IPv6

  • One Circuit

  • 2 Network Protocols

IPv4 / IPv6 Firewall & VPN platform

PPP

DHCP-PD or

Neighbor

Discovery

PPPoE

ATM VC or

Ethernet VLAN


References in ipv6 network engineering

References in IPv6 Network Engineering

  • GEANT V6 task force

    • http://www.join.uni-muenster.de/geantv6/

  • DANTE:

    • www.dante.net/nep/ipv6/index.html


Ipv6 network references

IPv6 Network References

GEANT IPv6 Test Program: http://www.juniper.net/news/pressreleases/2001/pr-011128.html

ESNET / 6TAP at PAIX: http://www.juniper.net/news/pressreleases/2001/pr-011128.html

France Telecom / VTHD: http://www.juniper.net/news/pressreleases/2001/pr-011128.html

CSC / FUNET: http://www.juniper.net/news/pressreleases/2002/pr-020507.html

Internet2 / Abilene: http://archives.internet2.edu/guest/archives/I2-NEWS/log200204/msg00003.html

Canarie / CA*net 4: http://www.juniper.net/news/pressreleases/2002/pr-020710.html

ESNET: http://www.juniper.net/news/pressreleases/2002/pr-020828.html

ARNES, DANTE, and REDiris: http://www.juniper.net/news/pressreleases/2002/pr-021003.html

http://archives.internet2.edu:8080/guest/archives/I2-NEWS/log200210/msg00005.html

Internet2 Gigapops: http://www.juniper.net/news/pressreleases/2002/pr-021111.html

Japan Gigabit Network: http://www.juniper.net/news/pressreleases/2002/pr-021112.html

Chunghwa Telecom HiNet: http://www.juniper.net/news/pressreleases/2003/pr-030114.html

NTT Communications: http://www.juniper.net/company/presscenter/pr/2003/pr-030218a.html


E series broadband services router

E-series Broadband Services Router

The industry’s leading high-end Broadband Services Routers.

Worldwide market share leader for Broadband deployments


The new extended t series family

Proven Platforms

Highly Resilient, Available

3-Dimensional Scalability

The New, Extended T-series Family

TX Matrix

T640

T320


November 2004 delivering on our promise

Over 3 Billion Packets Per Second !

November 2004 – Delivering on our promise

Juniper Introduces the TX Matrix Platform

T640

T640

T640

T640


Juniper networks ipv6 deployment worldwide

Juniper Networks IPv6 deploymentWorldwide

Americas

APAC

EMEA


Ipv6 over broadband service models

Thank You


  • Login