Community-Lab introduction

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Comment:Indicate that a server hosts several slivers (and change section title).
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User & Date: ivan on 2012-09-23 08:34:06
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Context
2012-09-23
08:38
New transition to node arch diagram, rename slices/slivers/nodes slide. check-in: 6f31c22938 user: ivan tags: trunk
08:34
Indicate that a server hosts several slivers (and change section title). check-in: 9f8f2ee7dd user: ivan tags: trunk
2012-09-22
16:26
Shorten node arch zoom titles to "Node arch:". check-in: 9043376392 user: ivan tags: trunk
Changes
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Modified script.txt from [62db899240] to [9d4bab6741].

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  - Link instability is tolerated by using short-lived mgmt connections.
- Gateways allow a testbed to span multiple CNs.
  - Connecting the mgmt net over external means (e.g. FEDERICA, the Internet).
  - Gateways can make the management network available to the Internet.
- A researcher runs the experiments of a slice in slivers each running in a
  different node.

** Nodes, slices and slivers
# Diagram: Slices and slivers, two or three nodes with a few slivers on them,
# each with a color identifying it with a slice.)
- These concepts are inspired in PlanetLab.
- The slice (a management concept) groups a set of related slivers.
- A sliver holds the resources (CPU, memory, disk, bandwidth, interfaces…)
  allocated for a slice in a given node.


** Node architecture
allows the realization of these concepts.  A node consists of:
# Node simplified diagram, hover to interesting parts.
- The community device
  - Completely normal CN device, so existing ones can be used.
  - Routes traffic between the CN and the node's wired local network (which







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  - Link instability is tolerated by using short-lived mgmt connections.
- Gateways allow a testbed to span multiple CNs.
  - Connecting the mgmt net over external means (e.g. FEDERICA, the Internet).
  - Gateways can make the management network available to the Internet.
- A researcher runs the experiments of a slice in slivers each running in a
  different node.

** Slices, slivers and nodes
# Diagram: Slices and slivers, two or three nodes with a few slivers on them,
# each with a color identifying it with a slice.)
- These concepts are inspired in PlanetLab.
- The slice (a management concept) groups a set of related slivers.
- A sliver holds the resources (CPU, memory, disk, bandwidth, interfaces…)
  allocated for a slice in a given node.
- A node hosts several slivers at the same time.

** Node architecture
allows the realization of these concepts.  A node consists of:
# Node simplified diagram, hover to interesting parts.
- The community device
  - Completely normal CN device, so existing ones can be used.
  - Routes traffic between the CN and the node's wired local network (which