InstaGENI Aggregate

University of Utah Downtown Data Center InstaGENI

This InstaGENI aggregate supports the GENI Aggregate Provider Agreement (08/13/2013).

InstaGENI Aggregate Overview

Aggregate Manager URL
Aggregate Manager URN
Aggregate Manager Common Name utahddc-ig
Aggregate Resources This InstaGENI aggregate includes 33 hosts (12 XEN VM Servers and 21 dedicated PCs) that can load experimenter specified OS images. This aggregate also supports OpenFlow topologies. Rack servers are HP ProLiant DL380p Gen8.
Typical Experiments InstaGENI provides a controllable, predictable, and repeatable network environment. Experimenters can get virtual machines or dedicated PCs on which they have full "root" access, run available operating systems of their choice, and connect nodes in an arbitrary topology that can support OpenFlow.
Sample RSpecs
Aggregate Status Restricted access to monitoring at and  GMOC
Slice Authorities Recognized GENI Portal (, ProtoGENI (
Usage Policies A  GENI Recommended Use Policy is available. Site should also add links here to their own usage policies.
Layer 2 Connectivity Access to Internet2 GENI OpenFlow Core Network via Utah Education Network (UEN), for details see the  Utah UEN OpenFlow Aggregate page.

Aggregate Management

Aggregate Operator Flux Research Group, School of Computing, University of Utah.
Resource Owner Rob Ricci
Technical POC
Developer Links Software pages:  InstaGENI, Project page:  InstaGENI Racks Project; Developer mailing list:

GENI Network Stitching

VLANs Range Link ID URN Destination Network
2100-3499 Utah stitching aggregation network

OpenFlow over GENI Network Stitching

This rack supports running hardware OpenFlow experiments over stitched GENI network connections. Please be advised that the following restrictions apply:

  • Network stitching on the InstaGENI rack allocates and enforces link bandwidth, which cannot be modified by OpenFlow.
  • VLANs allocated to stitched connections on the rack cannot be modified, because InstaGENI rack switches operate in hybrid mode, preventing VLAN tag rewriting.

The following is the layout of OpenFlow switch connections for the InstaGENI Aggregate. Shown are the OpenFlow Switches:

  • InstaGENI Switch procurve2: Model: HP J8697A Switch E5406zl

Port List

InstaGENI Rack OF Switch UEN OpenFlow connection is via port name="B22" num="46" on the procurve2 switch.

All host eth1, eth2 and eth3 interfaces are connected to the OpenFlow switch for experimental use. Full list of port names and port numbers:

Shared Nodes running XEN41-64-STD interfaces (port name/port number) details:

Hosteth1 eth2 eth3
pc1 A4/16 A5/17 A6/18
pc2 A7/19 A8/20 A9/21
pc3 A10/22 A11/23 A12/24
pc4 B1/25 B2/26 B3/27
pc5 B4/28 B5/29 B6/30
pc6 B7/31 B8/32 B9/33
pc7 B10/34 B11/35 B12/36
pc8 B13/37 B14/38 B15/39
pc9 B16/40 B17/42 B18/42
pc10 D1/55 D2/56 D3/57
pc11 D4/58 D5/59 D6/60
pc12 D7/79 D8/80 D9/81

Dedicated Nodes interfaces (port name/port number) details:

Hosteth1 eth2 eth3
pc13 D10/82 D11/83 D12/84
pc14 D13/85 D14/86 D15/87
pc15 D16/88 D17/89 D18/90
pc16 D19/91 D20/92 D21/93
pc17 D22/94 D23/95 D24/96
pc18 E1/97 E2/98 E3/99
pc19 E4/100 E5/101 E6/102
pc20 E7/103 E8/104 E9/105
pc21 E10/106 E11/107 E12/108
pc22 E13/109 E14/110 E15/111
pc23 E16/112 E17/113 E18/114
pc24 E19/115 E20/116 E21/117
pc25 E22/118 E23/119 E25/120
pc26 F1/121 F2/122 F3/123
pc27 F4/124 F5/125 F6/126
pc28 F7/127 F8/128 F9/129
pc29 F10/130 F11/131 F12/132
pc30 F13/133 F14/134 F15/135
pc31 F16/136 F17/137 F18/138
pc32 F19/139 F20/140 F21/141
pc33 F22/142 F23/143 F24/144

If you require some other type of dataplane connections for your OpenFlow experiment, please contact