Penguin
Recent Changes
Annotated edit history of Peering version 16, including all changes. View license author blame.
Rev Author # Line
7 MattBrown 1 Literally, to behave as if someone, or some group, was your peer.
2 ----
3 In telecommunications, peering is an arrangement whereby two parties (the peers) reciprocally exchange traffic ([IP] traffic or [POTS] traffic) with each other. Usually this traffic is exchanging without charging, on the assumption that each of the peers benefits from the relationship. Other less common forms of peering can include payment for traffic imbalances between the peers.
4
5 !! Benefits of Peering
6 From an end-user point of view peering is beneficial as it often means that traffic reaches the intended destination earlier (reducing latency and jitter).
7
8 JohnMcPherson 8 From an [ISP] point of view peering is beneficial as it reduces the amount of traffic passed on to your transit provider (hence lowering the cost of that link).
7 MattBrown 9
8 JohnMcPherson 10 From an transit provider's point of view, peering is often seen as a problem as it reduces customers reliance on transit connections (hence lowering their revenue).
7 MattBrown 11
14 ElroyLiddington 12 Traditionally peering happens between large players in the Internet market such as Telcos and ISPs, however there are also benefits for large sources or sinks of traffic to peer at a peering point for the same reasons as an ISP (it reduces their reliance on purchased transit). Organisations that need to be multihomed may also choose to connect to their providers at a peering point.
7 MattBrown 13
14 !! Peering Information
16 IanMcDonald 15 NewZealand currently has multiple active peering points all managed by CityLink
11 MattBrown 16 * [APE] - [Auckland] Peering Exchange - Biggest by volume of traffic
17 * [WIX] - [Wellington] Internet Exchange - Biggest by number of participants
18 * [PNIX] - Palmerston North Internet Exchange - Quite small at the moment.
12 MattBrown 19 * [DPE] - Dunedin Peering Exchange
13 MattBrown 20 * [3CIX] - 3 Cities (Hutt City, Upper Hut, Porirua) Internet Exchange
12 MattBrown 21
10 MattBrown 22 According to http://www.nzix.net/ webpages the following exchanges are also under construction.
23 * Christchuch - (CHIX)
24 * Southland - (SIX)
12 MattBrown 25 * Hamilton - (HIX)
7 MattBrown 26
27 An excellent introduction to peering is William B. Norton's paper "Internet Service Providers and Peering" downloadable from http://www.equinix.com/pdf/whitepapers/PeeringWP.2.pdf
28
29 Keep an eye out for other William B. Norton papers as well, they are usually highly informative and well researched.
30
31 !! Peering Discussion
32 Peering breaks down when peers are not honest brokers for their customers--widespread peering increases redundancy and reduces the pressure on long-distance links, but there are certain pricing schemes which do not provide incentive for peers to do this.
33
34 An apparent instance of this happening can be found here: http://www.nzherald.co.nz/storydisplay.cfm?storyID=3568316
9 IanMcDonald 35
36 Unfortunately the two largest telcos [Telecom] and [TelstraClear] no longer peer without charge, which causes problems when rats chew cables [http://computerworld.co.nz/news.nsf/UNID/F45502DE448D9635CC2570260002CF04?OpenDocument&Highlight=2,rat].
7 MattBrown 37
38 http://scorchio.pure-guava.org.nz/cgi-bin/wiki/kwiki.cgi?PeeringNotice %%%
39 http://scorchio.pure-guava.org.nz/cgi-bin/wiki/kwiki.cgi?DePeeringForNewbies
9 IanMcDonald 40
41
7 MattBrown 42
43 ----
44 CategoryNetworking

PHP Warning

lib/blame.php:177: Warning: Invalid argument supplied for foreach()