Version 20 (modified by 15 years ago) (diff) | ,
---|
Project Number
1646
Project Title
Prototype Support for Heterogenous Testbed Resources:
Integrating cluster, broadband, and wireless emulation nodes into the “Proto-
GENI” Framework
a.k.a. CMU Testbeds, CMU Homenet (obsolete), CMULab, CMULAB
Technical Contacts
Principal Investigator: David Andersen dga@cs.cmu.edu
CoPI: Peter Steenkiste prs@cs.cmu.edu
CoPI: Srini Seshan srini@cmu.edu
Lead Developer: Pat Gunn pgunn@cs.cmu.edu
Participating Organizations
Carnegie Mellon University, Pittsburgh, PA
Intel
Army Research Office
CMU Cylab
Scope
This project will build upon CMU’s existing cluster, neighborhood wireless/broad-band, and wireless emulation testbeds to concretely identify—and build prototypes of—the authentication, resource arbitration, and node management primitives needed to coherently deal with this very diverse set of resources. The project will integrate these testbeds with the ProtoGENI effort from the University of Utah, which is itself based upon that group’s Emulab software.
The primary contributions of this work towards GENI Spiral 1 are the integration of HOMENET, CMU wireless emulator, and CMULab into the ProtoGENI control framework (includes federation & Internet2 connectivity); extension of HOMENET capabilities to support node/experiment management & isolation; definition/refinement of control framework elements such as RSpecs; and expansion of HOMENET user opt-in control.
Milestones
milestone:"CMU Lab: Get CMU ProtoGENI node on I2 VLAN" (due 12/1/08)
milestone:"CMU Lab: bare bones node configuration" (completed 12/1/08)
milestone:"CMU Lab: emulator nodes integrated" (completed 12/1/08)
milestone:"CMU Lab: Formulate initial RSpecs for wireless nodes" (completed 3/11/09)
milestone:"CMU Lab: deploy and operate 2 HomeNet nodes in CMU lab" (completed 1/31/09)
milestone:"CMU Lab: Tunneling packets from Utah to CMU" (completed 4/24/09)
milestone:"CMU Lab: desired node config & boot mgmt functionality" (due 2/1/09)
milestone:"CMU Lab: Deploy and commence operations of 5 residential HomeNet nodes" (completed 4/23/09)
milestone:"CMU Lab: Emulator user interface integration" (due 4/1/09)
milestone:"CMU Lab: IP-in-IP encap from CMU-Control to Homenet nodes" (due 4/1/09)
milestone:"CMU Lab: integrate with ProtoGENI control plane" (due 5/1/09)
milestone:"CMU Lab: integration of node-CMU and CMU-Utah tunnels" (due 5/1/09)
milestone:"CMU Lab: Merge patches into ProtoGENI distribution" (due 7/1/09)
milestone:"CMU Lab: student testbed use" (due 7/1/09)
milestone:"CMU Lab: GEC Demo" (due 10/1/09)
milestone:"CMU Lab: Integrated experimentation between CMU testbeds" (due 10/1/09)
Project Technical Documents
Customisations made to a standard UBUNTU image needed to prepare them for being a homenet node, also customisations to Emulab to handle the configuration requests. (tarfile)
Design concerns for MetaVPN: management software that creates/manages/destroys OpenVPN networks that serve as data planes within an experiment.
HomeNet setup notes.
Quarterly Status Reports
Spiral 1 Connectivity
IP
The nodes in this project present a number of challenges for connectivity:
The CMU Lab internal cluster and Wireless Emulator are NATted behind 128.2.222.223.
The HomeNet nodes themselves are located in residences, sometimes behind NATs and sometimes with direct IP connectivity.
Data plane: Several of the HomeNet nodes are deployed behind either NATs or firewalls that block most non-TCP communication other than DNS. As a result, these nodes use OpenVPN tunnels to reach a tunnel endpoint node at CMU. This tunnel endpoint will have a globally-reachable IP address that can be used for GRE tunnels (and, perhaps an L2 tunnel if an economical L2 VLAN strategy can be found).
Control plane: To present a unified access mechanism for these nodes and to simplify the node management process, these nodes establish an SSL-based VLAN with the CMULab cluster control node (boss). The nodes use the open-source OpenVPN SSL/TLS-based VPN software to establish the Homenet control VPN. See also the attached file.
The tunnel endpoint and any globally-reachable nodes installed later will connect to the ProtoGENI node on Internet2 using a GRE tunnel. CMU accesses the Internet via 3ROX operated by PSC using a link with over 500 Mbps spare capacity. 3ROX is not on I2's DCN. HomeNet nodes will tunnel (IP-in-IP) to CMU Control using OpenVPN. The nodes will have addresses assigned by the user's ISP and may be assigned private addresses by HomeNet.
L2
802.11q tagged VLANS will be used to establish QoS-enabled Ethernet VLANs between the CMU emulab cluster and the CMU wireless emulator. ProtoGENI will provide dynamic VLAN establishment between Utah emulab clusters and CMU Lab.
System Status
CMULab cluster machines: Online and managed by CMULab boss. Available for experimental use by internal and external researchers. Nodes currently only have one Ethernet interface - are mostly viewed as eventual end-nodes and traffic-shaping nodes for wireless experimentation, and as virtual-node hosts for Emulab-style experimentation.
Homenet wide-area machines: Two nodes are operational sitting next to each other at CMU behind a NAT box installed here for testing purposes. First "real-world" node to be deployed 3 Feb 2009. Nodes boot from USB dongle, download disk images from the boss node over the Internet, install the image, transfer control, and boot up as a functioning testbed node. Nodes now perform all interaction with the testbed control using their public/private keypair as only identifier. As a result, testbed now supports nodes receiving dynamic addresses via DHCP and automatically updating database at CMULab with node-ID to dynamic IP address binding. Multiple nodes can be behind the same NAT/IP address and receive configurations appropriately.
Emulator nodes: Are operational and managed by CMULab boss.
GPO Liason System Engineer
Aaron Falk Aaron Falk
Related Projects
Attachments (4)
-
homenet_customisations.tar.bz2 (22.4 KB) - added by 15 years ago.
A tarball containing configfiles and development log/cooklist for the homenet image
-
design_concerns (1.5 KB) - added by 15 years ago.
Design document for metavpn
-
README (4.3 KB) - added by 15 years ago.
Release notes for MetaVPN
- Spiral 2 Project Review CMUlab.pptx (1.4 MB) - added by 14 years ago.
Download all attachments as: .zip