Frequent questions related with OpenCDN initiative

Yes. OpenCDN is operating experimentaly since june 2018 in of Salvador, BA.

OpenCDN intends to operate in all cities where there is an Internet Exchange. Nowadays, they are present at: Aracaju/SE, Belém/PA, Belo Horizonte/MG, Brasília/DF, Campina Grande/PB, Campinas/SP, Cuiabá/MT, Caxias do Sul/RS, Curitiba/PR, Florianópolis/SC, Fortaleza/CE, Foz do Iguaçu/PR, Goiânia/GO, Lajeado/RS, Londrina/PR, Manaus/AM, Maringa/PR, Natal/RN, Porto Alegre/RS, Recife/PE, Rio de Janeiro/RJ, Salvador/BA, Paulista Central (São Carlos)/SP, São José dos Campos/SP, São José do Rio Preto/SP and Vitória/ES.

However, OpenCDN deployment will be progressive. We plan to be present at at least 4 (four) Brazilian cities, yet to be choosed after the trial in Salvador/BA during 2017.

No. Nowadays, all the costs of are payed by and, with resources from the '.br' domain names registrations. Although will also contribute with resources for OpenCDN, the majority of expenses will be shared between the participant CDNs and Autonomous Systems (ASs) connected.

Nevertheless, as OpenCDN is a non-profit initiative, and as the costs are shared between all the players, they are going to be low.

OpenCDN is open for all CDNs, both for that owned by content providers, as well as for CDNs that offer their services commercially for other companies. However, we can have resource limitations in some locations. Where it is the case, we will impose restrictions based on resource consumption.

The CDN must install their cache servers in the OpenCDN infrastructure, and configure them in a way which the local ISPs can access them thru the OpenCDN Autonomous System. The CDN also must agree with OpenCDN terms of use.

The ISP must be an Autonomous System, and it have to be connected to the local Internet Exchange. It also must agree with OpenCDN terms of use, and set a bilateral peering session with OpenCDN Autonomous System, at the local IX.

CDNs are charged on the basis of datacenter space and energy. That is, the more resources consumed, higher is the share in the expenses.

The exact formula for calculating the share of the expenses will be defined during the first trial of OpenCDN.

Not really, in the sense that we do not offer CDN services to content providers. If you are a content provider, and you are looking for a CDN, it's not us who you are looking for.

However, we can say also yes, if we consider that we offer our infrastructure to be shared by CDN networks, thus becoming part of them.

In each city that OpenCDN operates it offers:

- rack space and related resources in an adequated datacenter for the cache servers;
- connectivity to São Paulo, thru OpenCDN Autonomous System, in order to feed the caches;
- connectivity to the Internet, thru OpenCDN Autonomous System, in order to feed the caches;
- an adequated range of IPs to the cache servers, from OpenCDN Autonomous System, if it is necessary;
- connectivity to the local Internet Exchange, and to the local ISPs and other Autonomous Systems, thru OpenCDN Autonomous System, in order to CDNs to be able to serve their content locally.

Connectivity to the participant CDNs, thru OpenCDN Autonomous System. The ISPs will be able to access the CDNs' content peering with OpenCDN Autonomous System at the local Internet Exchange.

ISPs are charged on the basis of inbound bandwidth. The more data an ISP can get from OpenCDN, higher is its share in the expenses.

The exact formula for calculating the share of the expenses will be defined during the first trial of OpenCDN.

We have around 4.000 Autonomous Systems, and aproximately 87% are ISPs. In Brazil, six ISPs hold about 70% of the Internet connections. It is a concentrated market. However, 30% still represents a very high number of eyeballs. It is really important to reach them, and OpenCDN can help the CDNs to just do it.

Yes. OpenCDN provides a shared infrastructure for cache servers, which is cheaper than host the cache servers inside the ISP network. Besides that, OpenCDN provides a distributed architecture, i.e., the bigger ISPs can peer with OpenCDN at several locations, bringing the content closer to its users.

OpenCDN network is directly connected to the Internet Exchange in São Paulo. It's preferable and cheaper to peer with OpenCDN in São Paulo, and use its network to feed the caches. OpenCDN network also provides Internet transit for the cache servers.

OpenCDN is operated by, a neutral and non-profit organization.

In this fase of trial, OpenCDN is not legally constituted as a entity separated from OpenCDN is an initiative of

However, we are still studying the best legal and economic models for OpenCDN. It may be possible that in the future OpenCDN will be constituted as a legal entity, separated from, supported by CDNs, ISPs and ASs connected.

The Brazilian Network Information Center, was created to implement the decisions and projects designed by the Brazilin Internet Steering Committee,, which is responsible for the coordination and integration of all Internet service initiatives in the country. is the executive arm of the Its mission involves certain rights and obligations, which include:

- registering and maintaining <.br> domain names, as well as allocating Autonomous System Numbers (ASN) and IPv4 or IPv6 addresses in the country through;
- handling and responding to computer security incidents involving networks connected to the Brazilian Internet, which are activities to be carried out by;
- projects that support and improve the network infrastructure in the country, such as the direct interconnection between networks ( and the distribution of the Brazilian Official Time ( These projects are the responsibility of;
- producing and publishing indicators, statistics and strategic information on the development of the Brazilian Internet, under the responsibility of;
- promoting studies and recommending procedures, norms and technical and operational standards that will improve network and Internet service security, as well as ensure its increased and adequate use by society, as established by the and
- providing technical and operational support to LACNIC, the Internet Address Registry for Latin America and the Caribbean.

The Brazilian Internet Steering Committee ( was created by Interministerial Ordinance 147, of May 31st, 1995, which was amended by Presidential Decree 4,829 of September 3rd, 2003, with the purpose of coordinating and integrating all Internet service initiatives in Brazil, as well as promoting technical quality, innovation and the dissemination of the services available.

The is comprised of members from the government, the corporate sector, the third sector and the academic community, and as such constitutes a unique Internet governance model for the effective participation of society in decisions involving network implementation, management and use. Based on the principles of multilateralism, transparency and democracy, since July 2004 the has been democratically electing representatives from the civil society to participate in discussions and to debate priorities for the Internet together with the government. (that used to be called or PTTMetro), is the Internet Exchange Point initiative of the Brazilian Internet Steering Committee, was started in 2004 and now holds 27 IXPs in different Brazilian cities covering the 5 administrative regions of the country: north, northeast, southeast, middle east and south. There are around 2.100 participants considering the totality of IXPs. São Paulo's IXP have more than 50% of the total participants while some smaller locations have only 5 participantes (the city of São Carlos for instance).

The initiave is supported with resources coming from the domain names '.br', and it is operated by acts providing not only infrastructure but a set of related initiatives including capacity building, for instance, in order to promote IXPs sustainability.