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    Understanding Junosphere

    Junosphere is a cloud-based, virtualization environment where multiple virtual machines representing network devices can be connected and configured to create network topologies. To use the cloud, you create or upload a topology file that defines devices, interfaces, and their interconnections. You also can upload standard configuration files for each network device and use the resulting virtual network exactly like a physical network.

    Junosphere has two types of users: bank administrators and users. Users have access to Junosphere topologies and the virtualization environment. Bank administrators are users with additional privileges of adding more users, assigning users to resources, and dividing capacity among users.

    Junosphere stores the virtual machine units capacity (the number of virtual machine units times the number of days) to use the network in banks and sandboxes. Think of a bank as a container of sandboxes. The capacity held by banks is divided into sandboxes, or work areas, where specified users can reserve time to use the cloud.

    Junosphere holds one or more topology file sets in libraries for users of a bank, a sandbox, or all users. A topology file set is made up of a topology file and a collection of configuration files, one for each device described in the topology file.

    Junosphere enables customers, partners, developers, and educational institutions to easily experiment, model, and educate by leveraging the flexibility, cost efficiency, and simplicity of a cloud-based delivery model.

    Junosphere can be purchased in two different ways, depending on specific user needs: pay-per-use and an annual plan. The pay-per-use plan allows the customer to prepay for a limited amount of capacity, which is spent every time a topology is run. Once that capacity is used up, it can be replenished with another purchase.

    You can purchase the following two types of Junosphere capacity:

    • Junosphere Lab—Enables you to create and run exact replicas of physical networks within the virtual environment. Users can model, test, and experiment with new features, topologies, or services with no risk and with dramatically reduced costs.
    • Junosphere Classroom—Enables you to cost-effectively educate students, employees, or partners on the principles and operation of Junos OS, routing protocols, and networking, without the expense of building, maintaining, or operating a physical lab.

    Note: Junosphere is best viewed with Mozilla Firefox 19.0 or greater and Internet Explorer 9.0.

    Note: Currently, annual plans cannot be purchased via the Learning Portal. Work with your Junosphere sales representative to place an order for an annual plan.

    Annual plan capacity facilitates OPEX planning by providing Junosphere capacity for an entire year. Operators have maximum control of capacity pools assigned to diverse teams and projects. The bank administrator can customize the minimum guaranteed capacity for each sandbox to ensure baseline availability, and also the maximum utilization of virtual machine (VM) units in each sandbox to prevent unauthorized abuse of consumption.

    The flexible capacity allocation system maximizes the usage of available VM units by shifting capacity from inactive sandboxes to those which experience temporary spikes of demand. These allocation algorithms ensure best usage of the capacity pool at every moment.

    Additionally, all the annual plan SKUs provide a la carte overflow capacity. The 50 and 100 annual plan SKUs also include unlimited connector capacity.

    In the annual plan, overflow capacity is supplemental regular capacity that enables a customer to go beyond the daily limit of the annual plan for a fixed amount of time. For example, the 100 VM unit annual plan has 2000 VM units of overflow capacity. This enables you to run a topology of 200 VM units (100 VM units included in the annual plan and 100 VM units from the overflow capacity) for 20 days, 150 VM units for 40 days, 110 VM units for 200 days, and so on. It is expended on the same pay-per-use basis as other regular Lab and Classroom (non-annual plan) capacity.

    Published: 2013-08-15