The interconnection needs of GRNET organizations refer to the:<\/p>\n
- \n
- Connectivity with the GRNET IP network<\/strong>, wherefrom they can exchange traffic with each other and with the rest of the (Greek and international) internet and have access to the computing \/ storage services of GRNET.<\/li>\n
- Private Networks (VPN) setup<\/strong>:<\/li>\n
- between the points of presence of an organization, for the exchange of internal traffic,<\/li>\n
- between two or more GRNET organizations, in the context of a collaboration, research project or experiment,<\/li>\n
- between GRNET organizations and organizations of other European academic networks, in the context of a collaboration, research project or experiment,<\/li>\n
- between an organization and GRNET datacenters, in the context of GRNET service (e.g. for the integration of some virtual machines in the organizations\u2019 s internal network).<\/li>\n<\/ul>\n
The ideal networks can be created through various methods, such as L2 \/ L3 VPNs, dedicated optical \u00ab \u03bb\u00bb wavelengths (lambdas) in the optical network, dedicated circuits, etc.<\/p>\n
The interface that is used for the organization\u2019s interconnection to the GRNET network is always of an Ethernet type. The connection speed for organizations that are \u201con\u201d the GRNET private owned network is typically 1Gbps, while a number of advanced organizations are connected at 10Gbps. Organizations outside the GRNET optical network, typically use lower speed metro ethernet circuits. Finally, there is a limited number of organizations accesses that are implemented through self-owned fibers, wireless networks, or other technologies.<\/p><\/div><\/div><\/div>\n\t\t\t<\/div>
\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\nGeneral Architecture <\/span><\/h3><\/div>
\nThe GRNET network architecture defines three distinct layers of service:<\/p>\n
- \n
- the optical service layer, provided by the GRNET optical network (optical equipment and fiber optic network) for physical interconnection services.<\/li>\n
- the carrier service layer, provided by the Carrier network and the GRNET access network for Ethernet interconnection services.<\/li>\n
- the IP service layer, provided by the GRNET IP network for IP interconnection between GRNET organizations, its data nodes, the Greek and International Internet.<\/li>\n<\/ul><\/div><\/div>
- Private Networks (VPN) setup<\/strong>:<\/li>\n
![\"Image\"](\"\/wp-content\/uploads\/sites\/13\/2015\/06\/grnet4-service-layers.preview.png\")
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