GENI maximum number of nodes allowed for a slice

[柳子豪]

Hi,

I am trying to create a large network potentially with close to hundreds of routers and tens of hosts. But it seems that certain rack has a limit on the number of nodes I can create. For instance, on the Illinois InstaGENI, there are always two to three nodes that fails to boot. Are these valid statement?

Thanks

Zihao

[Vicraj Thomas]

Hello Zihao,

To my knowledge there is no per-user limit on the number of nodes you
can create on a GENI rack. Of course, a given rack can only support a
certain number of VMs or raw machines.

However, you will very likely see failures when you try to create a
large topology in one request. It is best to build large topologies
incrementally. See [1] for a tutorial on scaling up experiments. The
presentation at this link describes one way to do this: Create a "shared
VLAN" and incrementally add VMs to it. If this "shared VLAN" is a
stitched VLAN, you can create a large topology with VMs from multiple racks.

If you use ExoGENI racks, there is a lot more flexibility in making
changes to your topology, including growing it. See [2]

To find out the number of VMs and raw PCs available on a GENI rack, see [3].

< Vic

[1] http://groups.geni.net/geni/wiki/GEC21Agenda/ScalingUp
[2]
http://www.exogeni.net/2016/01/using-exogeni-slice-modifydynamic-slice-capabilities/
[3] https://flsmonitor.fed4fire.eu/geni_tutorial.html

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