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IPv6 Technology for C-Data ONU Products

IPv6 Technology for C-Data ONU Products

The rapid development of the Internet had brought a large number of intelligent terminals to our home and increasingly exhausted the IPv4 address resources we are using. Although NAT technology helps to delay the speed of the IPv4 address consumption, the world Internet technology is still developing towards IPv6 technology which has become one of the key basic technologies required by 5G, cloud computing and Internet of things technologies.

In the past two years, the world has advocated and accelerated the deployment of IPv6 technology to meet the urgent needs of the connection of massive intelligent terminals, the innovation of technology industries, and the enhancement of network security capability. Almost all ISP/Operators are building the next generation of the Internet based on IPv6 technology.

C-Data, as a professional manufacturer in access network technology, will discuss the following related topics to help you understand IPv6 technology more comprehensively.

  • Overview of IPv6 Technology
  • Transition Technology from IPv4 to IPv6
  • Relevanceof C-Data ONU to IPv6 Technology
  • C-Data ONU products supporting IPv6 technology
  • Expectation of IPv6 Technology in The Future

1、Overview of IPv6 Technology

1.1 What is IPv6?

IPv6 (Internet Protocol Version 6) is the next generation of the current Internet Protocol (IPv4). Composed of 128-bit binary numbers, IPv6 provides a huge resource of IP address enough for every living creature and even every grain of sand on the earth to be assigned one or more IP addresses. IPv6 is to divide the 128-bit address into segments per 16 bits, and each segment is separated by colons when converted into hexadecimal digits.

An example of IPv4 address: 192.168.101.1

An example of IPv6 address: 2002:0db8:85a3:08d3:1319:8a2e: 0370:7344

1.2 Why use IPv6 technology?

IPv4 technology is a 32-bit binary address, which can address 16 million networks and 4 billion hosts. However, with the adoption of A, B, and C addressing methods, the number of available network addresses and host machines is greatly reduced. Moreover, as the core technology and about 3 / 4 IP resources are mastered by European and American countries due to their developed Internet, many developing countries fall into the predicament of insufficient IP address resources. In fact, with the increasing number of global Internet users and the vigorous development of intelligent terminals and network technology, the lack of IP address resources will seriously restrict the application and development of the Internet in many countries around the world.

 

1.3 Current situation of IPv6 Technology

If to realize the complete transition from IPv4 to IPv6, it requires the network software, hardware, and terminal equipment in the global Internet infrastructure to support IPv6 protocol, which will involve a lot of transformation work. Although IPv6 technology has been proposed as early as the 2010 year, it has only been promoted by governments and major ISP/Operators in recent two years. Moreover, the long-term coexistence of IPv4 and IPv6 is still a compatibility issue that we need to consider.

 

1.4 What are the advantages of IPv6 over IPv4?

Compared with IPv4, IPv6 has the following advantages:

  • Larger address space. The IP address length of IPv4 is 32; that is, there are 2^32-1 addresses. While the IP address length of IPv6 is 128, that is, there are 2^128-1 addresses.
  • Smaller routing table. Compared with IPv4, IPv6 packet header contains half of the fields, and all fields are aligned with 64-bit boundaries, which greatly improves the processing speed.
  • Enhanced multicast support and streaming support. There is no terrible broadcast storm caused by the IPv4 as the multicast support, and streaming support provide a good opportunity for the development of multimedia services.
  • Higher security. Users can encrypt the data in the network layer and verify the IP message while using IPv6, which greatly enhances network security.

 

In view of the advantages of IPv6, IPv6 will eventually completely replace IPv4 and occupy a dominant position on the Internet after a long period of coexistence of IPv4 and IPv6.

2、Transition technology from IPv4 to IPv6

Since IPv6 will eventually replace IPv4, how to achieve a network environment fully IPv6 compatible? The initial network transformation from IPv4 to IPv6 reveals that there is a thorough adjustment from protocol to hardware, including the client and server. Therefore, the issue of backward compatibility has been taken into account by IETF when designing IPv6 from the very beginning. The ISP/Operator will provide an intermediate node and uses DNS64 / NAT64 technologies, which are responsible for protocol conversion to connect the link between IPv6 and IPv4.

2.1. Tunnel technology for the initial transition

At the tunnel entrance between the IPv6 and the IPv4, the router encapsulates the entire IPv6 datagram into the data field of the IPv4 datagram. The source address and destination address of the IPv4 packet are respectively the tunnel entrance and exit of IPv4 addresses. At the exit of the tunnel, the IPv6 packet is taken out and forwarded to the destination node.

1.1

2.2. Dual-stack technology for IPv4 / IPv6 coexistence

Dual-stack technology is an effective technology for the transition from IPv4 to IPv6. The nodes in the network support both IPv4 and IPv6 protocol stacks. The source node selects different protocol stacks according to the different destination nodes while networking equipment according to the protocol type of the message. A dual-stack can be implemented on a single device or a dual-stack backbone. For a dual-stack backbone network, all devices must support IPv4 / IPv6 protocol stack at the same time, and the interface connecting the dual-stack network must be configured with both IPv4 and IPv6 addresses.

2.13、Relevance of C-Data ONU to IPv6 Technology

The IPv6 network is divided into a backbone network and an access network. As the backbone network carries a lot of IPv6 services, most ISP/Operators have completed the deployment of the IPv6 backbone network but the access network is used for the access of terminal users. Nowadays, given that almost every family is connected with optical fiber, how to integrate IPv6 function on PON products to solve the problem of IPv6 compatibility is a difficult problem faced by many a ONU manufacturer.

In order to realize fast and easy access to IPv6 network in FTTH and adapt to the needs of global IPv6 network development, C-Data has spared no effort to make ONU support IPv6 service, and a graphical interface is released for end-users to use IPv6 on C-Data ONU easily. Furthermore, C-Data ONU supports IPv4 / IPv6 dual-stack transition technology and has revived the Anatel certification to meet the IPv6 networks in most of the countries. Some countries’ networks have used C-Data ONU as IPv6 network access.

There are two IPv6 network scenarios of C-Data ONU discussing as follows:

Scenario 1: transparent transmission of IPv4 / IPv6 services by ONU bridge mode

This scenario is mainly used for PPPoE or IPoE of IPv4 / IPv6, with user computers attached to ONU devices or wireless routers attached to ONU devices. Both OLT and ONU during transmission act as middle transmission devices, and only bridge mode is configured to transparently transmit IPv4 / IPv6 services. It is worth noting that whether the intermediate OLT and ONU devices support transparent IPv6 services needs to be considered because there are many OLT and ONU devices on the market that do not support transparent transmission of IPv6 services.

3.1

Scenario 2: ONU routing mode carries IPv4 / IPv6 services

In this scenario, the routing mode on ONU should support PPPoE or IPoE services of IPv4 / IPv6, and then allocates IPv4 / IPv6 address to the attached user computer or wireless router through DHCPV4 / DHCPv6 to realize the network access of IPv4 / IPv6. It is available for the OLT devices and the transparent transmission of IPv4 / IPv6. In this scenario, many manufacturers’ ONU products are difficult to implement. However, a lot of ONU manufacturers fail to apply their products to this scenario as there is a couple of issues to figure out, such as the compatibility of IPv6, the implementation of IPv6 Routing, the coexistence of IPv4 and IPv6, and the distribution of IPv6 address.

4.14、C-Data ONU Products Supporting IPv6 Technology

No. ONU Form ONU Models Function Description
1 EPON&GPON&XPON 1GE/1GE+CATV FD511G&FD701G Series 1. Support PPPoE / IPoE, DHCPv6, IPv4 / IPv6 dual stack functions of IPv4 and IPv6 in routing mode;

2. Support transparent transmission of IPv4 / IPv6 service in bridge mode.

2 EPON&GPON&XPON 1GE+wifi/1GE+1FE+wifi/

4GE+2pots+wifi(AC)

FD511GW&FD512XW&FD702XW&FD604GW&FD804GW Series 1. Support PPPoE / IPoE, DHCPv6, IPv4 / IPv6 dual stack functions of IPv4 and IPv6 in routing mode;

2. Support transparent transmission of IPv4 / IPv6 service in bridge mode.

3 EPON&GPON&XPON

1GE+3FE/1GE+3FE+CATV/4GE

FD50X&FD704X&FD504G Series 1. Only transparent transmission of IPv4 / IPv6 service in bridge mode.

5、Expectation of IPv6 Technology in the Future

  • The global network will build new information technology facilities based on IPv6 and give priority to the use of IPv6 in 5G, the Internet of things, and the industrial Internet.
  • Technical standards such as IPv6 + and SRv6 will be derived from IPv6 single stack. The application mode will be innovated to increase the pilot and commercial applications under the coordination with industrial chains.
  • Intelligent ultra-wide, intelligent connection and intelligent operation and maintenance are the main characteristics of the future IP network. IPv6 is the best choice for an intelligent IP network.

Conclusion

AI, big data, cloud computing, and the Internet of things technologies have an important connection with TCP / IP protocol. IP is the network layer protocol standardizing the exchange and routing of Internet packet information. As an infrastructure, IPv6 will construct a new Internet era.

As a professional FTTH broadband access product supplier, C-Data will accelerate the deployment of the IPv6 network together with the global ISP/Operators and apply more IPv6 technologies to the products. If you are interested in IPv6 technology, C-Data welcomes the chance to provide C-Data ONU for you and discuss IPv6 technology together.

c-data cioe 2016

C-Data Successed the CIOE 2016

China International Optoelectronic Exposition (CIOE) has been held successfully for 18 years. The event is world’s largest and most influential exhibition in optoelectronics industry with a total exhibition area of 110,000 sq. meters. More than 3,200 exhibitors and 60,000 visitors are expected to attend the event.

C-Data is a high-tech enterprise which is specialized in access network products, C-Data has accumulated many technologies in the field of access network for many years。The products can meet the demands of triple play in functionalities and performances. In this exhibition,we will show you GPON/EPON FTTx and PON + EOC solutions,the application of full range of products and technology.

fttx pon eoc access solution

In this exhibition,C-DATA has successfully showed  GPON OLT,  EPON OLT and a various of GPON / GEPON ONU, EOC, HFC productS. Many people like these products.

 

pose for C-Data group photo

C-Data organized a two-day trip to celebrate The 7th anniversary ceremony

To celebrate The 7th anniversary ceremony, Shenzhen C-Data Technology CO., Ltd, one of the biggest high-tech enterprises that focus on providing broadband network access devices organized all staffs a two -day trip.

on 18th August, all staffs went to Liu Xihe Forest Park and began outward bound training  to improve the staff’s cohesive force and team consciousness.

pose for c-data group photo

Pose for a group photo

 pose for C-Data sales team

(pose for sales team)

C-Data outward bound training(C-Data outward bound trainning)

C-Data diversion projectdiversion project

tramcartramcar

break the codebreak the code

At 19:00 we all arrived at heng rice Carlton hotel for anniversary ceremony dinner in Conghua. At the dinner party, Mr. Cui, the CEO of C-Data  made an important speeches, not only in retrospected C-Data’s history, but also brought exciting news to all and made all are confident in the future.

The next day morning, We visited the highest waterfall in Mainland China– Baishuizhai scenic spot, climbing the mountain and enjoying the beautiful scenery.

Baishuizhai waterfall

In the afternoon, we also visit  the crane state wetland park to enjoy the idyllic scenery and the cool green rippling lake.

one hundred years old withered Litchi in the lake(one hundred years old withered Litchi in the lake)

After that trip, all staffs of C-Data not only enjoyed the beautiful scenery, but also stimulated all work hard together to create the new glory of C-Data.

 

pt expo comm china

The 25th PT/EXPO COMM CHINA Invitation

The 25th PT/EXPO COMM CHINA
Venue: China International Exhibition Center, Beijing, China
Date: 20- 23 September, 2016
Booth: 4103, Hall 4

The 25th PT/EXPO COMM CHINA  will be launched in the Beijing China International Exhibition Center of China from September 20th to 23th. C-Data is located in 4103 booth, welcome you come to visit the guidance.
C-Data is a high-tech enterprise which is specialized in access network products, C-Data has accumulated many technologies in the field of access network for many years。The products can meet the demands of triple play in functionalities and performances. In this exhibition,we will show you GPON/EPON FTTx and PON + EOC solutions,the application of full range of products and technology.
We sincerely invite you to visit our booth again, On the way of expanding broadcasting market, C-Data is pleased to cooperate with you to develop the radio and television network and push forward the development of Information Technology.

The 25th PT/EXPO COMM CHINA

c-data at cioe 2016

The 18th China international Optoelectronic Exposition Invitation

The 18th China international Optoelectronic Exposition
Venue: Shenzhen Convention & Exhibition Center, China
Date: 6- 9 September, 2016
Booth: 6037,6038,6039, Hall 6

The 18th China international Optoelectronic Exposition will be launched in the Shenzhen Convention & Exhibition Center of China from September 6th to 9th.
C-Data is located in 6037,6038,6039 booth, welcome you come to visit the guidance.
C-Data is a high-tech enterprise which is specialized in access network products, C-Data has accumulated many technologies in the field of access network for many years。The products can meet the demands of triple play in functionalities and performances. In this exhibition,we will show you GPON/EPON FTTx and PON + EOC solutions,the application of full range of products and technology.
We sincerely invite you to visit our booth again, On the way of expanding broadcasting market, C-Data is pleased to cooperate with you to develop the radio and television network and push forward the development of Information Technology. Thank you!

layout of cioe 2016

c-data ccbn2016

Welcome to Visit C-Data at CCBN 2016

China Content Broadcasting Network (CCBN2016)
Date: 24 – 26 March, 2016
Venue: China International Exhibition Center (CIEC) Beijing, China

Booth: 206/8A

The 24th China Content Broadcasting Network -CCBN 2016 will take place on March 24 – 26, 2016 in the prestigious China International Exhibition Center (CIEC) in Beijing. Our company is located in 8 a pavilion 206 booth, welcome you come to visit the guidance.

C-Data is a high-tech enterprise which is specialized in access network products, C-Data has accumulated many technologies in the field of access network for many years. The products can meet the demands of triple play in functionalities and performances. In this exhibition, we will show you GPON/EPON FTTx and PON + EOC solutions, the application of full range of products and technology.

We sincerely invite you to visit our booth again, On the way of expanding broadcasting market, C-Data is pleased to cooperate with you to develop the radio & television network and push forward the development of Information Technology. Thank you!

ccbn2016 layout of ccbn 2016

c-data ccbn 2015

The CCBN 2015 has been concluded, C-DATA has also successfully taken part in the CCBN 2015

The 23th CCBN has been concluded on March 28, 2015. In this exhibition, we have successfully showed FTTx and PON+EOC total solution. These solutions meet the application of FTTB, FTTC, FTTH, FTTO, which can be applied in various industry clients professional network, such as radio and television access network, video surveillance network, enterprise local area network. We can provide high-speed Internet, VOD and VOIP to the final customers.

In this exhibition, C-DATA has successfully showed the new 1U GPON OLT, 1U EPON OLT and a various of ONU, EOC, HFC product. Many people like these products.

 

communicasia 2015

Welcome to Visit C-Data at CommunicAsia 2015

Show Information: CommunicAsia 2015

Date: 2 to 5 June 2015

Location: Marina Bay Sands

Booth: BV3-08

As Asia’s largest integrated event, CommunicAsia2015 will be held in 2015 June at the Marina Bay Sands. The show will show wide range of technologies and solutions, which also provides companies a platform to expand overseas business.

C-DATA’s booth is BV3-08, we will show all kinds of GPON, EPON FTTx and PON+EOC total solution.

C-DATA sincerely invite you to visit our booth in hall BV3-08.

Location:

layout of communicasia 2015

Cebit 2015

Welcome to Visit C-Data at CeBIT 2015

Show Information: CeBIT 2015

Date:16 to 20 March 2015

Venue: Germany Hannover exhibition center

Booth: E54-12

CeBIT is one of the largest and most authoritative consumer electronics and information communication show in the world. It is also one of the most important platforms which shows the latest scientific and technological achievements.

It’s our great pleasure to inform you that we will attend CeBIT2015. C-DATA is focus on GPON/EPON FTTH, GPON/EPON+EOC application and expect to discuss further with you on the spot.

Looking forwarder to meeting you and communicate with marketing prospect and future cooperation.

 

cebit-2015 layout-of-cebit-2015