Publications

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Gigabit Passive Optical Networks (GPON) is a networking technology which offers the potential to provide significant cost savings to Sandia National Laboratories in the area of network operations. However, a large scale GPON deployment requires a significant investment in equipment and infrastructure. Before a large scale GPON system was acquired and built, a small GPON system manufactured by Motorola was acquired and tested. The testing performed was to determine the suitability of GPON for use at SNL. This report documents that testing. This report presents test results of GPON system consisting of Motorola and Juniper equipment. The GPON system was tested in areas of data throughput, video conferencing, VOIP, security, and operations and management. The GPON system performed well in almost all areas. GPON will not meet the needs of the low percentage of users requiring a true 1-10 Gbps network connection. GPON will also most likely not meet the need of some servers requiring dedicated throughput of 1-10 Gbps. Because of that, there will be some legacy network connections that must remain. If these legacy network connections can not be reduced to a bare minimum and possibly consolidated to a few locations, any cost savings gained by switching to GPON will be negated by maintaining two networks. A contract has been recently awarded for new GPON equipment with larger buffers. This equipment should improve performance and further reduce the need for legacy network connections. Because GPON has fewer components than a typical hierarchical network, it should be easier to manage. For the system tested, the management was performed by using the AXSVison client. Access to the client must be tightly controlled, because if client/server communications are compromised, security will be an issue. As with any network, the reliability of individual components will determine overall system reliability. There were no failures with the routers, OLT, or Sun Workstation Management platform. There were however four ONTs that failed. Because of the small sample size of 64, and the fact that some of the ONTs were used units, no conclusions can be made. However, ONT reliability is an area of concern. Access to the fiber plant that GPON requires must be tightly controlled and all changes documented. The undocumented changes that were performed in the GPON test lab demonstrated the need for tight control and documentation. In summary, GPON should be able to meet the needs of most network users at Sandia National Laboratories. Because it supports voice, video, and data, it positions Sandia National Laboratories to deploy these services to the desktop. For the majority of corporate network users at Sandia National Laboratories GPON should be a suitable replacement for the legacy network.

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This report contains the design requirements for creating a limited-access Sandia Extended Network (SXN), which would be used to collaborate with Nuclear Weapons Complex Labs personnel, university collaborators, industry, and others who may not be allowed accounts on the Sandia Restricted Network (SRN). This document contains the design requirements for creating a limited-access Sandia Extended Network (SXN), which would be used by non-Sandians to collaborate with NWC Labs personnel and others who are not allowed accounts on the Sandia Restricted Network (SRN). Its main purpose is to articulate the requirements upon which the design options and hardware costs for the Sandia eXtended Network (SXN) can be based and in turn presented to 8900 and 9300 Management. The requirements are further addressed in reports outlining its security architecture and in the five-volume set of network architecture reports: An Architecture for the Sandia Extended Network: Overview; Detailed Description of the Architecture, Design of the Model, and Balanced Protections; Background of the Architecture and its Relevance to Sandia; Terminology and Concepts Relevant to Networks; and Policy-Based Networks and Information Management.