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Network Technology
IP/MPLS, CDN, IPTV, Network Basic Protocol
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World IT Show 2014: SK Broadband/SK Telecom's Gigabit Internet Access Network

World IT Show 2014: SK Broadband/SK Telecom's Gigabit Internet Access Network | Network Technology | Scoop.it
SK Broadband & SK Telecom introduced various gigabit Internet access network solutions at the WIS 2014. SK noted that the new solutions (10G-EPON, XG-PON, NG-PON2, Mini ONU, G.Fast, L2 Switch) will be able to provide a bidirectional Internet speed of 1 Gbps per user. In this blog, we will share with you what we have discovered at the show about the SK's gigabit Internet access network solutions.
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Korean big 3 telcos offer hassle-free and instant upgrade to Giga-class Internet without re-cabling construction

Korean big 3 telcos offer hassle-free and instant upgrade to Giga-class Internet without re-cabling construction | Network Technology | Scoop.it
Korean big 3 telcos (KT, SK Telecom, LG U+) offer hassle-free and instant upgrade to Giga-class Internet without re-cabling
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Switching and Routing - Part 3. L2 (Ethernet) Switching by L3 Switch

Switching and Routing - Part 3. L2 (Ethernet) Switching by L3 Switch | Network Technology | Scoop.it
The previous post was about IP routing by router. This and next posts are about Ethernet switching (L2 bridging) and IP routing (IP forwarding) by L3 switch.
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Switching and Routing - Part 1. Router Architecture

Switching and Routing - Part 1. Router Architecture | Network Technology | Scoop.it
Back in the early 2000s, when I worked for an L3 switch (Ethernet switch + IP router) developer, I had once implemented packet forwarding by using IBM NP4GS3C, a network processor.

Not just becaus...
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Switching and Routing for Dummies - Ethernet Switching

Switching and Routing for Dummies - Ethernet Switching | Network Technology | Scoop.it
In this and next posts, we will learn about L2 (Ethernet) switching and L3 (IP) routing.
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Do Google Global Caches (GGCs) serve YouTube live traffic as well, or not?

Do Google Global Caches (GGCs) serve YouTube live traffic as well, or not? | Network Technology | Scoop.it
Do Google Global Caches (GGC) serve YouTube live traffic as well, or not?...So, do GGCs server live traffic as well? Yes, they do!
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YouTube, changing the way of delivering videos: Chunking and Adaptive Streaming are In, Progressive Download is Out!

YouTube, changing the way of delivering videos: Chunking and Adaptive Streaming are In, Progressive Download is Out! | Network Technology | Scoop.it
Recently, YouTube has changed/evolved the way it delivers video contents. It used to be a big fan of HTTP progressive download (downloading a video file by a single request just like downloading a...
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NAT Behavior Discovery Using STUN (RFC 5780)

NAT Behavior Discovery Using STUN (RFC 5780) | Network Technology | Scoop.it
Our previous document described the NAT behavior discovery algorithms defined in RFC 3489. This document will explain what algorithms for discovering NAT behaviors are defined in RFC 5780.
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Understanding DHCP Relay Agents

Understanding DHCP Relay Agents | Network Technology | Scoop.it
This document is the third in our DHCP technical documents series and explains the basic operations of a DHCP relay agent. It covers the procedures of IP address allocation/lease, IP address renewa...
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Understanding the Detailed Operations of DHCP

Understanding the Detailed Operations of DHCP | Network Technology | Scoop.it
This document is the second in our DHCP technical documents series and explains the detailed operation of DHCP. First, we will describe a procedure for detecting conflicts of IP addresses between t...
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STUN (RFC 3489) Vs. STUN (RFC 5389/5780)

STUN (RFC 3489) Vs. STUN (RFC 5389/5780) | Network Technology | Scoop.it
What are the differences between NAT types defined in RFC 3489 and RFC 5780?
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NAT Behavioral Requirements, as Defined by the IETF (RFC 4787) - Part 2. Filtering Behavior

NAT Behavioral Requirements, as Defined by the IETF (RFC 4787) - Part 2. Filtering Behavior | Network Technology | Scoop.it
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Netflix HTTP Adaptive Streaming

Netflix HTTP Adaptive Streaming | Network Technology | Scoop.it
Content Delivery Method of Netflix: i) basically, delivered through HTTP adaptive streaming, ii) HTTP GET message: a video file can be requested to be delivered in different methods and formats eve...
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KT aims to build a nationwide GiGA Internet access network (Gigabit Internet) by the end of the year

KT aims to build a nationwide GiGA Internet access network (Gigabit Internet) by the end of the year | Network Technology | Scoop.it
KT aims to build a nationwide GiGA Internet access network (1 Gbps to the home) by the end of the year.
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Switching and Routing - Part 4. IP Forwarding by L3 Switch

Switching and Routing - Part 4. IP Forwarding by L3 Switch | Network Technology | Scoop.it
Let's talk about IP routing (IP forwarding) by L3 switch. Please follow us carefully as this process is the most complicated one.
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Switching and Routing - Part 2. Packet Forwarding by IP Router

Switching and Routing - Part 2. Packet Forwarding by IP Router | Network Technology | Scoop.it
As noted in the previous post, we will explain the logic of IP packet delivery among routers.
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Switching and Routing for Dummies - IP Routing

Switching and Routing for Dummies - IP Routing | Network Technology | Scoop.it
In this and previous posts, we will learn about L2 (Ethernet) switching and L3 (IP) routing.
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Korea Communication Review, July 2014

Korea Communication Review, July 2014 | Network Technology | Scoop.it

Korean ICT News • page 1

LTE/LTE-A Commercialization by South Korea’s Big 3 Operators as of July 1, 2014 • page 2-4

Broadband Access Network Architecture in Korea • page 5-6

What's GIGAtopia envisioned by Chairman Chang-gyu Hwang of KT? • page 7-11

Netmanias Vendor Interview: HFR’s optical fronthaul solution • page 12-14

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What is DHCP Option 82?

What is DHCP Option 82? | Network Technology | Scoop.it
We will look into DHCP Option 82 used in the wireline networks of network operators today.
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DHCP Security Using a DHCP Proxy Agent

DHCP Security Using a DHCP Proxy Agent | Network Technology | Scoop.it
Last time when we introduced a DHCP proxy agent through our previous blog post dated in September 1. 2013, we mentioned that this DHCP proxy agent can offer the benefits of enhanced security. So, w...
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Understanding DHCP Proxy Agents and Security

Understanding DHCP Proxy Agents and Security | Network Technology | Scoop.it
This document is the fourth in our DHCP technical documents series and explains the basic operations of a DHCP proxy agent. It covers the procedures of IP address allocation/lease, IP address renew...
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NAT Behavior Discovery Using Classic STUN (RFC 3489)

NAT Behavior Discovery Using Classic STUN (RFC 3489) | Network Technology | Scoop.it
Let us introduce the NAT behavior discovery algorithms defined in RFC 3489.
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Understanding the Basic Operations of DHCP

Understanding the Basic Operations of DHCP | Network Technology | Scoop.it
DHCP (Dynamic Host Configuration Protocol) is a protocol used by DHCP servers in wired/wireless IP networks to dynamically allocate a variety of network configuration data, such as a user IP addres...
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NAT Behavioral Requirements, as Defined by the IETF (RFC 4787) - Part 3. Deterministic Properties

NAT Behavioral Requirements, as Defined by the IETF (RFC 4787) - Part 3. Deterministic Properties | Network Technology | Scoop.it
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NAT Behavioral Requirements, as Defined by the IETF (RFC 4787) - Part 1. Mapping Behavior

NAT Behavioral Requirements, as Defined by the IETF (RFC 4787) - Part 1. Mapping Behavior | Network Technology | Scoop.it
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