wiki:GeniNetworkStitchingSites

GENI Network Stitching Sites

Last update: 2017-06-19

The following 34 sites have been tested and are available for GENI Network Stitching experiments via the listed networks:

Site Name Nickname AL2S VLANs
Case Western Reserve University InstaGENI crwu-ig 21
CENIC InstaGENI cenic-ig 20
Clemson University clemson-ig 15
Georgia Institute of Technology gatech-ig 15
GPO ExoGENI gpo-eg 30
GPO InstaGENI gpo-ig 30
Mid-Atlantic Crossroads (MAX) InstaGENI max-ig 60
Naval Postgraduate School InstaGENI nps-ig 15
Northwestern University InstaGENI northwestern-ig 15
NYSERNet InstaGENI nysernet-ig 20
Rutgers University InstaGENI rutgers-ig 21
Southern Crossroads InstaGENI sox-ig 15
Stanford InstaGENI stanford-ig 15
University of California Los Angeles InstaGENI ucla-ig 20
University of Chicago InstaGENI chicago-ig 20
University of Hawaii InstaGENI hawaii-ig 20
University of Illinois InstaGENI illinois-ig 20
University of Kansas InstaGENI kansas-ig 20
University of Kentucky InstaGENI uky-ig 20
University of Kentucky ProtoGENI uky-pg 10
University of Kentucky MCV InstaGENI ukymcv-ig 20
University of Kentucky PKS2 InstaGENI ukypks2-ig 20
University of Louisiana InstaGENI ullafayette-ig 20
University of Michigan InstaGENI umich-ig 15
University of Missouri InstaGENI missouri-ig 15
University of Missouri Kansas City InstaGENIumkc-ig 15
University of Tennessee Chattanooga utc-ig 15
University of Texas at Dallas (US Ignite) utdallas-ig 20
University of Utah Downtown Data Center InstaGENI utahddc-ig 1400
University of Utah InstaGENI utah-ig 1400
University of Utah ProtoGENI utah-pg 1400
University of Vermont uvm-ig 50
University of Washington uwashington-ig 15
University of Wisconsin InstaGENI wisconsin-ig 15

GENI Network stitching is possible between all of the above InstaGENI and ExoGENI sites. Example GENI stitching RSpecs are available here. For an example experiment that uses GENI Network Stitching, see this GENI Network Stitching Example page. To determine resource availability, refer to the InstaGENI Site Usage page. VLANs delegated to GENI stitching are tracked by ID here.

You may use any of the sample Stitching RSpecs referenced by this page. To modify an RSpec example to use a different site, simply do the following:

  1. In the node definition, replace the URN for the component_manager_id with the URN for your site.
  2. In the link definition, replace the name of the component_manager with the URN for your site.
  3. Modify all instances of the client_id and source_id or dest_id to be descriptive for your site.

Stitching Notes:

  • All existing compute resource types (raw-pc, VMs) are supported in stitched slivers.
  • Testing has verified most combinations for the sites listed. There is only one combination that does not work at this time: GPO ExoGENI to PG UKY.
  • To run stitching scenarios without the ExoSM for the GPO ExoGENI rack, use the stitcher option --noExoSM. If this option is not specified, than the request is submitted to the ExoSM aggregate.
  • Stitching RSpecs that include raw-pc sliver types must specify a capacity.
  • If any part of a sliver creation fails, the stitcher will delete the stitched sliver at each aggregate.
  • If you interrupt the stitcher sliver creation with GCF 2.8 or later, the stitcher will attempt to delete all slivers, but if you are using GCF 2.7 or earlier you must delete the sliver at each of the aggregates listed by the stitcher as part of the stitched path, and re-create the entire slice.

Additional Stitching Topologies

Complex and large topologies have been tested. A few RSpecs are provided here as examples that can be referenced and modified to be used at other sites:

Topology Description Sites in topology RSpec
Three nodes linear GPO IG <-> Utah PG <-> Utah IG stitch-3linear.rspec
Triangle topology Utah PG<->UKY PG<-> GPO IG <-> Utah PG stitch-triangle.rspec
Star topology Center=UtahDDC IG; Outer=UKY PG, Utah PG, Utah IG, GPO IG stitch-star-ddc.rspec

Is you are interested in setting up a GENI Stitching connection to a fixed endpoint, see the Fixed End Point Topology Using GENI Stitching page.

OpenFlow over GENI Network Stitching

InstaGENI racks that support GENI Network Stitching also support running hardware OpenFlow experiments over their stitched GENI network connections with the following restrictions:

  • 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.

If you require some other type of dataplane connections for your OpenFlow experiment, please contact geni-users@googlegroups.com.

GENI Stitching AL2S Path Mappings

Following is the list of GENI Stitching Site resources within AL2S as of 2016-07-22:

Router Interface Site VLAN Range
alba.net.internet2.edu xe-5/2/2.0 uvm-ig 1750-1799
ashb.net.internet2.edu et-3/0/0.0 vt-ig 4001-4015
atla.net.internet2.edu et-3/1/0.0 clemson-og 3000-3009
bato.net.internet2.edu et-8/0/0.0 ullafayette-ig 3980-3999
dall.net.internet2.edu et-8/0/0.0 utdallas-ig 901-920
loui.net.internet2.edu et-4/3/0.0 uky-ig 1810-1829
loui.net.internet2.edu et-4/3/0.0 uky-pg 850-859,1800-1809
loui.net.internet2.edu et-4/3/0.0 ukymcv-ig 1850-1869
loui.net.internet2.edu et-4/3/0.0 ukypks2-ig 1830-1849
atla.net.internet2.edu et-3/1/0.0 clemson-clab 3560-3574
atla.net.internet2.edu et-4/3/0.0 clemson-ig 3560-3574
atla.net.internet2.edu et-4/3/0.0 gatech-ig 3520-3534
atla.net.internet2.edu et-4/3/0.0 sox-ig 3540-3554
atla.net.internet2.edu et-4/3/0.0 utc-ig 3500-3514
chic.net.internet2.edu et-2/3/0.0 iu-crest 2396-2399
clev.net.internet2.edu et-3/3/0.0 cwru-ig 650-670
clev.net.internet2.edu et-4/3/0.0 wsu-eg 1831-1840
colu4.net.internet2.edu et-3/3/0.0 missouri-ig 1150-1165
houh.net.internet2.edu et-0/3/0.0 tamu-eg 940-949
kans.net.internet2.edu et-3/3/0.0 kansas-ig 1170-1189
kans.net.internet2.edu et-3/3/0.0 umkc-ig 1730-1744
losa.net.internet2.edu et-2/3/0.0 hawaii-ig 1700-1719
losa.net.internet2.edu et-2/3/0.0 cenic-ig 1550-1569
losa.net.internet2.edu et-2/3/0.0 nps-ig 1680-1694
losa.net.internet2.edu et-2/3/0.0 ucla-ig 1610-1629
losa.net.internet2.edu et-2/3/0.0 usc 3224
newy32aoa.net.internet2.edu et-3/1/0.0 iminds 1125-1164
newy32aoa.net.internet2.edu et-7/3/0.0 gpo-eg 3741,3736-3739
newy32aoa.net.internet2.edu et-7/3/0.0 gpo-ig 3596-3600,3706-3732,3746-3749
newy32aoa.net.internet2.edu et-7/3/0.0 gpo-og 2611-2630
newy32aoa.net.internet2.edu et-7/3/0.0 host-gpolab 2646
newy32aoa.net.internet2.edu et-4/3/0.0 nysernet-ig 1700-1719
phil.net.internet2.edu et-3/0/0.0 rutgers-ig 3730-3750
rale.net.internet2.edu xe-8/0/0.0 ncsu2-eg 1761-1764
salt.net.internet2.edu et-4/3/0.0 utah-stitch 2100-3499
seat.net.internet2.edu et-4/3/0.0 uwashington-ig 2301-2315
star.net.internet2.edu et-1/0/0.0 uchicago-ig 3075-3094
star.net.internet2.edu et-1/0/0.0 umich-ig 4026-4040
star.net.internet2.edu et-1/0/0.0 wisc-clab 905-924
star.net.internet2.edu et-1/0/0.0 wisconsin-ig 930-944
star.net.internet2.edu et-7/0/0.0 northwestern-ig 2201-2215
star.net.internet2.edu et-9/0/0.0 illinois-ig 1760-1779
sunn.net.internet2.edu et-8/0/0.0 stanford-ig 1630-1644
wash.net.internet2.edu et-1/3/0.0 wix 1700-1729
wash.net.internet2.edu et-2/3/0.0 max 3020-3049
wash.net.internet2.edu et-4/3/0.0 gwu-geni-cinema 724

Additional GENI Stitching paths not associated with sites, but are stitching endpoints:

Router Interface Next Hop VLAN Range
chic.net.internet2.edu et-4/3/0.0 chic-cr5 -1,1-4089
jack.net.internet2.edu et-4/0/0.0 I2_Awave 2710-2719
sunn.net.internet2.edu et-7/0/0.0 sunn-cr5 -1,1-4089

If additional help is needed, please contact help@geni.net.


Last modified 18 months ago Last modified on 06/19/17 16:12:22