Japan Network Access Point
Encyclopedia
The Japan Network Access Point (JPNAP) is an Internet Exchange Point
situated in Tokyo
and Osaka
, Japan
. JPNAP was established on 2001 and operated by Internet Multifeed Co.
JPNAP is one of the largest Internet Exchanges in the world, by traffic. JPNAP provides 10 GE
, GbE, FE interfaces and also provides Link aggregation
. The Tokyo
and Osaka
sites are approximately 500km apart, but they are not connected. JPNAP network is already IPv4
/v6
Dual-stacked. However, they also provide IPv6
-only service through their Internet Exchange Point
called JPNAP6.
When the "automatically switched optical patch panel" finds a failure in the IX
switch, it switches patch cable to the other IX switch automatically. Even if the patch panel has power problems, there's no effect on the communication, except for the detection of IX switch status.
"PeerWatcher" shows a graph of the traffic between the two BGP routers faced on JPNAP network using sFlow
.
Internet Exchange Point
An Internet exchange point is a physical infrastructure through which Internet service providers exchange Internet traffic between their networks . IXPs reduce the portion of an ISP's traffic which must be delivered via their upstream transit providers, thereby reducing the average per-bit...
situated in Tokyo
Tokyo
, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...
and Osaka
Osaka
is a city in the Kansai region of Japan's main island of Honshu, a designated city under the Local Autonomy Law, the capital city of Osaka Prefecture and also the biggest part of Keihanshin area, which is represented by three major cities of Japan, Kyoto, Osaka and Kobe...
, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
. JPNAP was established on 2001 and operated by Internet Multifeed Co.
JPNAP is one of the largest Internet Exchanges in the world, by traffic. JPNAP provides 10 GE
Gate equivalent
A gate equivalent stands for a unit of measure which allows to specify manufacturing-technology-independent complexity of digital electronic circuits....
, GbE, FE interfaces and also provides Link aggregation
Link aggregation
Link aggregation or trunking or link bundling or Ethernet/network/NIC bonding or NIC teaming are computer networking umbrella terms to describe various methods of combining multiple network connections in parallel to increase throughput beyond what a single connection could sustain, and to provide...
. The Tokyo
Tokyo
, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...
and Osaka
Osaka
is a city in the Kansai region of Japan's main island of Honshu, a designated city under the Local Autonomy Law, the capital city of Osaka Prefecture and also the biggest part of Keihanshin area, which is represented by three major cities of Japan, Kyoto, Osaka and Kobe...
sites are approximately 500km apart, but they are not connected. JPNAP network is already IPv4
IPv4
Internet Protocol version 4 is the fourth revision in the development of the Internet Protocol and the first version of the protocol to be widely deployed. Together with IPv6, it is at the core of standards-based internetworking methods of the Internet...
/v6
IPv6
Internet Protocol version 6 is a version of the Internet Protocol . It is designed to succeed the Internet Protocol version 4...
Dual-stacked. However, they also provide IPv6
IPv6
Internet Protocol version 6 is a version of the Internet Protocol . It is designed to succeed the Internet Protocol version 4...
-only service through their Internet Exchange Point
Internet Exchange Point
An Internet exchange point is a physical infrastructure through which Internet service providers exchange Internet traffic between their networks . IXPs reduce the portion of an ISP's traffic which must be delivered via their upstream transit providers, thereby reducing the average per-bit...
called JPNAP6.
Technology
JPNAP has two distinguishing features : the first is "Automatically switched optical patch panel" and the other is "PeerWatcher".When the "automatically switched optical patch panel" finds a failure in the IX
Internet Exchange Point
An Internet exchange point is a physical infrastructure through which Internet service providers exchange Internet traffic between their networks . IXPs reduce the portion of an ISP's traffic which must be delivered via their upstream transit providers, thereby reducing the average per-bit...
switch, it switches patch cable to the other IX switch automatically. Even if the patch panel has power problems, there's no effect on the communication, except for the detection of IX switch status.
"PeerWatcher" shows a graph of the traffic between the two BGP routers faced on JPNAP network using sFlow
SFlow
sFlow is a technology for monitoring network, wireless andhost devices.The sFlow.org consortium is the authoritative source for the sFlow protocol specifications: previous version of sFlow, including RFC 3176, have been deprecated.- Operation :...
.