15 | | Note that this page assumes that your campus is already connected to the GENI network core. The [wiki:ConnectivityHome GENI Connectivity] page has more information about how to get connected to the GENI core, how to get connected to other campuses through the core, etc. |
| 19 | = Operations = |
| 20 | |
| 21 | Once you have this set up, experimenters will be able to create !OpenFlow slivers to use in their experiments. Before they can actually use those slivers, though, you'll need to approve them (or "opt them in", in Expedient's terminology). Here are some things to think about when doing that: |
| 22 | |
| 23 | * Does the sliver seem to accomplish what the experimenter is trying to accomplish? For example, if they tell you that they want traffic to and from a particular IP subnet for your MyPLC plnodes, you should confirm that this is actually what they've requested. If you aren't familiar with what the experimenter is trying to, you should probably ask them for more information about their experiment, since it's easier to evaluate their request if you know what their intended effect is. |
| 24 | |
| 25 | * Is the experimenter requesting a safe topology? In particular, if they request a topology that includes more than one of the ports that cross-connect VLAN 1750 and the inter-campus VLANs, this can cause traffic leaks and broadcast storms. Some experimenters have good reasons for wanting a topology with multiple paths into the core, but you should confirm that they understand what they're doing, and that they know how to ensure that the controller for their sliver won't leak traffic or cause storms. |
| 26 | |
| 27 | * Does their sliver include an IP subnet? If so, check the [wiki:NetworkCore/SubnetReservations network core subnet reservations page] and confirm that they've reserved the subnet they've requested. |
| 28 | |
| 29 | * Does their sliver include an entire experimental (non-standard) ethertype? If so, check the [wiki:NetworkCore/EthertypeReservations network core ethertype reservations page] and confirm that they've reserved the ethertype they've requested. |
| 30 | |
| 31 | * Does their sliver include an entire port on a switch? If so, confirm that they have an exclusive reservation for the entire device (or interface) connected to that port. (If the device is a MyPLC plnode, for example, they ''don't'' have an exclusive reservation for it; they should be requesting only an IP subnet or ethertype or some such, not all traffic to the entire port. If it's a Wide-Area ProtoGENI node (wapgnode), they might -- although you may need a Utah ProtoGENI admin to confirm that.) |
| 32 | |
| 33 | When in doubt, don't hesitate to ask the experimenter for more information about what they're trying to do. They're using your campus's resources, and it's important that you understand how they're going to use them -- and it makes it easier for you to help them if they have questions or run into problems. |