Tagged: architecture

Improved Resiliency on the Network

New 10Gb/s Link Enhances REANNZ Network Resiliency

One of our key goals is to provide a network platform that supports production quality advanced services, networking research & development and experimental test beds. The impact of REANNZ delivering this, will mean that our users are able to conduct research, education and innovation that could not occur without the reach, reliability and speed of an advanced network.

We are constantly seeking ways to augment and enhance the REANNZ Network so that we are able to deliver this essential networking infrastructure for our community. From the outset of the network, we have been aware of the vulnerability of the single path between the North and South Island, and have now been able to secure a second, alternate path between them. Currently, we are commissioning a 10Gb/s circuit from Avalon (AVL) to Christchurch (CHC) that will improve the network resiliency by avoiding the bottle neck of the Cook Strait. The circuit will be provisioned on the TelstraClear AquaFOTs fibre as a 10Gb/s wavelength service.

The map below shows the enhanced REANNZ Network.

Our weathermap will be updated when the circuit goes live.

The REANNZ Statement of Intent can be found on our website.

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KAREN2 Architecture Plan released

KAREN2 is the project to develop the next version of KAREN beginning in late 2013.  It is designed to position KAREN as a long-term infrastructure-based network capable of meeting the needs of the community over a 20-year period at a significantly lower cost per unit bandwidth.

The demand for capacity on KAREN is predicted to grow at close to 100% per annum, which means that by 2014, KAREN’s 10Gb/s capacity would be reaching its limit. We also need to plan how to make the best use of the new 40 Gb/s International capacity scheduled to come on stream in mid-2014.

To continue to deliver the level of service the members expect, KAREN has to grow in both capacity and capability while at the same time dramatically reducing the per-unit cost of bandwidth provided.

The KAREN2 Architecture Plan is one of the first steps towards achieving this goal. You can find the document, in PDF format, in the KAREN2 project section of the REANNZ website, on the Project Considerations page.

If you have any questions or comments about KAREN2, you can email:

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KAREN Architecture Working Group and a new KAREN RFC

Another significant step forward in community-led evolution of KAREN took place today with the publication of the Charter of the Architecture Working Group and the opening for comment of the KAREN Architecture Development Framework.

KAREN Architecture Working Group

The Charter of the Architecture Working Group has been published on the KAREN Wiki. This Charter describes the community membership of the Working Group as well as, its role, scope and goals.

Visit the Architecture Working Group page on the KAREN wiki for more.

Open for comment: KARENRFC – KAREN Architecture Development Framework

Associated with this Charter, the Working Group has drafted the initial KARENRFC describing the proposed Architecture Development Framework and posted that on the KARENRFC page for the community to comment.

Visit the KARENRFC page on the KAREN wiki.

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