Changes between Version 2 and Version 3 of OpenFlow/FOAM/AdminIntro


Ignore:
Timestamp:
07/15/13 10:36:38 (6 years ago)
Author:
Josh Smift
Comment:

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  • OpenFlow/FOAM/AdminIntro

    v2 v3  
    77Our [wiki:OpenFlow/FOAM main FOAM page] and [wiki:FlowVisor main FlowVisor page] have much more information, and many of the sections below link to things on those pages.
    88
     9We also have a page about [wiki:GENIConcepts general GENI concepts], and a [wiki:GENIGlossary glossary of GENI terms].
     10
    911There are also usually GPO and other GENI FOAM/FV/!OpenFlow-savvy folks on the #geni-openflow channel on the Freenode IRC network; see [wiki:HowTo/ConnectToGENIChatRoom our general IRC page] to get connected there.
    1012
     
    1315Here's a simplified overview of how FOAM (and !FlowVisor, and !OpenFlow in general) works.
    1416
    15 A physical !OpenFlow switch has one or more "datapaths", each of which connects to one !OpenFlow controller. To allow multiple GENI experimenters to use a datapath, we use !FlowVisor to slice traffic based on match criteria ("flowspace rules" in FV terms). For example, the flowspace rules for a FV slice might match any traffic on VLAN 1755 (dl_vlan=1755), or IP subnet 10.42.15.0/24 (dl_type=0x800,nw_dst=10.42.109.0/24,nw_src=10.42.109.0/24), etc.
     17A physical !OpenFlow switch has one or more "datapaths", each of which connects to one !OpenFlow controller. To allow multiple GENI experimenters to use a datapath, we use !FlowVisor to slice traffic based on match criteria ("flowspace rules" in FV terms). For example, the flowspace rules for a FV slice might match any traffic on VLAN 1755 (`dl_vlan=1755`), or IP subnet 10.42.15.0/24 (`dl_type=0x800,nw_dst=10.42.109.0/24,nw_src=10.42.109.0/24`), etc.
    1618
    1719(Note that a "!FlowVisor slice" isn't a slice in the GENI sense; they're very different, they just happen to use the same term. There's typically a one-to-one relationship between a FOAM sliver and a FV slice, so it may be helpful to think of a FV slice as the resources belonging to a FOAM sliver.)