Changes between Version 18 and Version 19 of CmuLab


Ignore:
Timestamp:
04/24/09 15:15:14 (15 years ago)
Author:
Aaron Falk
Comment:

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  • CmuLab

    v18 v19  
    7171
    7272'''Project Technical Documents'''[[BR]]
    73 [http://groups.geni.net/geni/attachment/wiki/CmuLab/homenet_customisations.tar.bz2 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] [[BR]]
    74 [http://groups.geni.net/geni/attachment/wiki/CmuLab/design_concerns Design concerns] for MetaVPN, management software that creates/manages/destroys OpenVPN networks that serve as data planes within an experiment. [[BR]]
     73  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. ([http://groups.geni.net/geni/attachment/wiki/CmuLab/homenet_customisations.tar.bz2 tarfile])
     74
     75  [http://groups.geni.net/geni/attachment/wiki/CmuLab/design_concerns Design concerns] for MetaVPN: management software that creates/manages/destroys OpenVPN networks that serve as data planes within an experiment.
     76
     77  !HomeNet setup [http://moo.cmcl.cs.cmu.edu/wiki/index.php/HomenetSetup notes].
    7578
    7679'''Quarterly Status Reports'''
    … …  
    8386  '''IP'''
    8487
    85     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.  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).  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.
     88The nodes in this project present a number of challenges for connectivity: 
    8689
    87     !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.
     90  The CMU Lab internal cluster and Wireless Emulator are NATted behind 128.2.222.223. 
     91
     92  The !HomeNet nodes themselves are located in residences, sometimes behind NATs and sometimes with direct IP connectivity.  [[BR]]
     93  ''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).  [[BR]]
     94  ''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. 
     95
     96  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.
    8897
    8998  '''L2'''
    … …  
    91100    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.
    92101
    93   '''Homenet Nodes'''
    94 
    95    The Homenet nodes themselves are located in residences, sometimes behind NATs and sometimes with direct IP connectivity.  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. [http://moo.cmcl.cs.cmu.edu/wiki/index.php/HomenetSetup notes]. See also the attached file.
     102 
    96103
    97104'''System Status'''