It’s really a tremendous project which will last for many years. So, it is necessary to formulate the annual introducing plan and detailed rules of working targets at each stage.
In the progress of evolution, there are numbers of principles we have to comply with. First, protecting investment and minimizing cost without compromising users experiences and network quality. Second, fundamental network comes first in order to carry the service network and CP/SP Third, before spread it in the whole network, ……
Next, we list some detailed guidelines for network, service, IT support system and terminals. First, look at the network part.
Then let’s consider the service part.
Third, in terms of terminal.
Before China Telecom announced officially to introduce IPV6 in commercial network, we have already tried a lot in this field. First of all, we participated in CNGI construction which includes …….. We also finished general service platform on it and developed many applications based on this platform, including uni-communication, multi-media conference, country informatization, vedio surveillance system, IPSEC VPN and so on .
China Telecom positioned CNGI as a test network, so applying the achievement to the commercial network is very important. We have just finished trial in Hunan metro network. Various types of accessing method are validated and the service provisioning system has been reconstructed to support IPV6. In addition, we are designing and building up the IPV6 network for the World university Game held in Shenzhen in 2011.
China Telecom not only do a lot on test network and commercial trial, but also develop products. The industry chain at least includes content provider, network provider and end-users. The industry chain expanded slowly in recently years and I think the dead lock among the three part can explain it. They are keeping waiting for the other parts to go first. China Telecom has the willingness and determination to deploy IPV6 and we started to develop products to help the other two part, content provider and end-users to deploy IPV6 easily and quickly. First, let’s look at the picture and think about the customer’s problem. Before the public subscribers to explore internet, they have to dial up. However, it’s not a easy work since there are too many options they have to choose according the complicated network especially after the IPV6 deployment because the subscribers’ operation system, the network and website may not support IPV6 at the same time. The subscribers do need a assistant to help them solve this problem.
China Telecom provide a products named intelligent communication assistant, It can intelligently probe user’s network environment and what website they want to access then help the users dial-up automatically and get whatever information they want in the internet, no matter it is IPV4 or IPV6.
Of course, some customer don’t like to install the dial-up client or they are not convenient to install it on the cell phone or other mobile equipment. In this situation, how can an IPV6 users browse an IPV4 website if they don’t use tunnels and other tools? It doesn’t matter, China Telecom can provide anther software named “Content translation gateway”. It can provide the user a guide portal to induce subscribers to use the gateway to get a IPV6 website translated from the IPV4 website.
Well, there is an another resolvent. Instead accessing the IPV4 website, the IPV6 customer access the IPV6 website perfectly translated from the IPV4 website. We are now designing a products to help the content provider transfer their IPV4 information into IPV6 information easily and quickly. It is also a resolvent.
Well, at last, let’s look back what we have talk about today. We first referred to IPV6 deployment policies. We talk about how many parts need to introduce IPV6 and the CT’s goal for the next 2 years. Then we listed detailed principles for network, service, support system and terminals)
Then we recommend what we have done in IPV6 deployment, including CNGI, commercial trial, product development according to the industry chain.
IPV6 in China Telecom: Policies and Try Cancan Huang, China Telecom 2009-8-24
Who will be involved? OSS /BSS (NMSBillingCRM) Backbone MAN core DNS Audio 、 Vedio 、 message 、 meeting 、 communication platform Multi-service edge point （ BRAS/SR /PDSN ） Content Platform Mobile TV IPTV Music Platform ICT Call Center Centrex/VPN Data Center App Hosting …… Control layer IMS/SIP Mobile access Wifi 1X 、 EVDO Fixed access xDSL FTTx LAN CG BTS WiFi AP Service Network BOSS Control Layer IP backbone DNS system MAN （ mobile ） Terminal Customer Gateway Introducing IPV6 involves the fundamental network, service network, terminal, support system, CP,SP, government and media // BOSS: Billing/Operation support system //ICT: Information and Communication Technologies // MAN: Metropolitan area network
CT’s goal in the next two years IPV6 access ready in some MANs All the purchased terminals are equipped with IPV6 1~2 self-running services fulfill end-to-end IPV6 service TOP 10 ICPs are IPV6 ready IP backbone IPV6 ready CT’s Target 1~2 sample MANs are able to provide end-to-end IPV6 services
What are the principles? Conducting tests at selected points come first Popularizing all-around come after Protecting Investment Keeping user experience Reducing impact on network Minimizing price Fundamental Networks come first Service Networks soon after CP/SPs come later Existing services need to be seamlessly moved New services need to be IPV6 enabled directly 1 2 3 4 Principle Target Network-wide IPV6
The details of deployment policy--network MAN Support System Backbone
Backbones use dual-stack for transiting, both core and aggregation network;
MAN use dual stack for transition. Most of the subscribers will use dual stack connection and a small number of subscribers will use tunnel in case they don’t have IPV6 ability.
For small number of applications, protocol translation mechanisms will be put into use.
Old DNS software system’s need to upgrade to support IPV6 record. The new built DNS are required to support IPV6 access.
The new built dual-stack Network management system should support IPV6 MIB database.
AAA system doesn’t need be changed, only need supporting IPV6 subscriber certification by software upgrading.
New services should be IPV6 enabled as early as possible, while existing service should be support IPV6 gradually by upgrading.
For those platforms which are directly exchanging information with the client terminals should be IPV6 ready as quickly as possible. On the other hand, back-end management systems are not so urgent.
Mobile core Network and Soft-switching Network Self-running service
CT should push the government to work out mandatory policies to give incentives to the CP/SP to introduce IPV6.
Mobile core Network and Soft-switching Network should be transited to IPV6 gradually according to the requirement of services.
The new built IMS system should be equipped with IPV6 directly .
The details of deployment policy- – IT support system MSS BSS OSS Existing system should be equipped with IPV6 gradually New system supports IPV6 directly The subsystem of MSS uses dual-stack to enable the IPV6 function step by step OSS should be IPV6 enabled simultaneously according to the fundamental network. BSS keeps pace with services to provide IPV6 ability IT system // MSS: Management support system // OSS: Operation support system // BSS: Billing support system
The detailed deployment policy – terminal STB Home gateway Soft Terminal Cell Phone Data Card using bridge mode to transparently transmit IPV6 datagram. Continually using IPV4 The one doesn’t support IPV6 continue using IPV4 Support IPV6 by upgrading The existing terminal The new terminal Enable IPV6 function directly
Outline CT’s try The policies of IPV6 introducing
World University Games, Shenzhen ， 2011 Two-oriented society commercial trial
CT’s trial—Product Development Wait for each other!! Industry Chain dead lock IPV4 ICP IPV6 ICP Content Provider IPV6 Internet IPV4 Internet Network Provider End-users
CT’s trial—product development(1) Multiple Internet access method Multiple operation system VPN dial-up enabled IPV6/IPV4 dial-up enabled For those who is willing to install the software, the dial-up web client can automatically probes user’s operation system ， network environment, even what website they want to browse and help users accessing the internet intelligently. “ Intelligent Communication Assistance”
CT’s trial—Product Development End-users Wait for each other!! Industry Chain dead lock Without Dial-up Client ？ Content Translation Gateway IPV4 ICP IPV6 ICP Content Provider IPV6 Internet IPV4 Internet Network Provider PORTAL
For those who will not install dial-up client, we provide a dual-stack “Content Translation Gateway” to help users to access the website with different IP address version through a guide portal.
CT’s trial—Product Development IPV4 ICP IPV6 ICP Content Provider End-users Wait for each other!! Industry Chain Circle Without Dial-up Client ？ ICP IPV6 upgrading helper IPV6 Internet IPV4 Internet Network Provider
The IPV6 introduction of ICP faces many difficulties, the “ICP IPV6 upgrading gateway” aims to help the ICPs transit to IPV6 quickly and simply.
Outline CT’s try The policies of IPV6 introducing Who will be involved? CT’s goal for next 2 years What are the principles? Detailed deployment Policies ( fundamental network/ service network/ support system/ terminal)
Outline CT’s try The policies of IPV6 introducing CNGI Commercial trial – World sports Game/ Metro network Product development Intelligent communication assistant Content translation gateway ICP IPV6 upgrade helper