The LACTLD Anycast Cloud is a collaborative network that seeks to strengthen the DNS infrastructure and stability in Latin America and the Caribbean. Since its formalization at IGF 2016 in Guadalajara, the Cloud has been growing with the incorporation of new clients and nodes. Thus, it has contributed to the Internet strengthening and development in the region.
What is Anycast?
Anycast is an addressing technology that allows optimal and efficient use of networks. In an Anycast Cloud, a series of nodes (servers) store copies of the same “database”, which is made up of the different Cloud clients zones (list of managed domains, for example, .sv, .do, .gt). In turn, these nodes, located in dispersed geographical locations, share and respond to the same IP address. Then, when this “database” receives a query, the routing systems first decide which of all the available nodes is the closest one to the query origination point and, then, direct the information to this geographic endpoint of the Cloud, thus speeding up the answers.
For example: If our network has nodes available in Santiago de Chile, São Paulo and San José de Costa Rica, and it receives a query from Santo Domingo, the routing systems first determine that the Costa Rican node is the closest one to the query origination point and, then, route the traffic there.
Which are its main benefits?
Optimal load management
Due to its distributed nature, the network dynamically activates the answers to the users queries according to the availability of each of the nodes. Furthermore, it grants geographic and topological diversity, and promotes local traffic exchanges.
Shorter response times
By efficiently managing queries, the Anycast Cloud can significantly reduce response times. Consequently, clients gain greater availability to respond to the users queries, and nodes also acquire operational speed and greater independence from the external network to provide their service.
Robustness and resilience
If one of the nodes goes down or stops working due to some inconvenience, it will automatically be removed from the available routing options, and future traffic will continue to be directed to the remaining nodes of the Cloud. Thanks to this mechanism, clients —who store copies of their zone in all the nodes of the network— have instant recovery instances in the case of a downfall or attack.
Efficient use of infrastructure
The LACTLD’s Anycast Cloud allows an efficient use of participants infrastructure.
LACTLD’s Anycast Cloud
LACTLD’s Anycast Cloud distinguishes itself by being:
Furthermore, LACTLD’s Anycast Cloud is based upon best effort principles, and it does not seek to compete with existing commercial providers.
LACTLD (Latin American and Caribbean ccTLDs Association) has pioneered the development of a Anycast Cloud of this kind.
This initiative has strengthened the infrastructure and stability of the Cloud’s clients and nodes as well as the entire regional network in terms of resilience, robustness, traffic load management, speed and availability.
Nodes and Clients of the LACTLD’s Anycast Cloud
Nodes and Clients Testimonials
.SV (El Salvador)
.DO (Dominican Republic)
.PR (Puerto Rico)
Pablo Rodríguez, Executive Vice President
.TT (Trinidad & Tobago)
“It has very important benefits, which are difficult to build autonomously and individually. I consider that collaboration brings additional synergies to the benefits of the project itself. It simply allows you to have a greater capacity for your services, and the truth is that it does not really have an important cost. On the contrary, the cost that you could pay, in reality, becomes a contribution that you make to the community and to the entire Internet in the region”.
“The impact it has had is precisely what we were looking for. It has given us and the region stability, redundancy and latency time drops in access. It works as requested. Not participating is missing a very good opportunity that has been provided”.
How to join the LACTLD’s Anycast Cloud
The Anycast Cloud nodes store local copies of the clients (ccTLDs) zones. They are all part of a.lactld.org.
Those interested in hosting a node of the LACTLD’s Anycast Cloud should provide hardware with management interface / virtual console (such as Dell iDRAC, HP iLO, VNC, etc). Also, they should be able to “speak” BGP.
- A machine with the proper hardware to perform authoritative DNS tasks, including hosting.
- Internet access with adequate bandwidth, and management with your access provider(s) to allow the transit of resources via BGP.
- Allow firewall management in order to control access to the server.
For more details on the technical requirements, you are welcome to contact us: firstname.lastname@example.org
By participating as clients, the regional ccTLDs will be able to replicate their zone in the different nodes of the LACTLD’s Anycast Cloud. Its incorporation will allow the ccTLDs to obtain significant benefits in terms of speed, availability and resilience.
Technical requirements to use the service
- Share a PGP encrypted TSIG for secure transfer
- Allow AXFR/IXFR at the ccTLD master from the Cloud distribution point
- Transfer trials
- Resolution trials
- Synchronization monitoring
- Add NS a.lactld.org to the area of the ccTLD
- Add NS a.lactld.org in the root (IANA)