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The initial Spiral 3 GENI network core is a set of OpenFlow-capable switches in NLR and Internet2.
There are currently two standing VLANs (3715 and 3716) carried on the ten switches in the core, which are located in the nine cities shown on the maps below. Each VLAN in each provider is topologically a broken ring (to help prevent accidental loops), with the two rings in each VLAN linked in Atlanta. The gap in each VLAN is between two different links, to provide either a longer or shorter path through the core between two switches. The two VLANs are not interconnected in the core, and should not be interconnected in regionals or at GENI sites either. Sites may connect to both VLANs as long as the site keeps them separated at layer 2.
VLAN 3715
VLAN 3716
VLAN 3717
Testing / monitoring
We're in the process of setting up a process for testing the OpenFlow core from end to end, including out to campuses. VLAN 3715 has four endpoints, and VLAN 3716 has two, which we intend to connect to these campuses:
VLAN | OpenFlow Connector | Participant | Host IP |
3715 | WASH I2 | Rutgers | 10.37.15.145 |
3715 | NEWY I2 | BBN | 10.37.15.102 |
3715 | SEAT NLR | Washington | 10.37.15.90 |
3715 | SUNN NLR | Stanford | 10.37.15.3 |
3716 | HOUS I2 | KSU | 10.37.16.113 |
3716 | CHIC NLR | Indiana (Gigapop) | 10.37.16.49 |
The core network status page at BBN shows whether test hosts at BBN and Stanford can ping the other test hosts right now.
For a complete list of known hosts in the connectivity subnets of these VLANs see:
Backbone Integration
Click the picture below for the full-sized image.
Note: Network Diagrams maintained by GMOC, historical revisions can be found here - http://gmoc.grnoc.iu.edu/gmoc/file-bin/geni-network-diagram.html
OpenFlow Core entry-points
Note, the OpenFlow Core Entry-points are available from the diagram above. The diagram is the authoritative source of information but is listed below for easier review.
Site | backbone "exit port" | Openflow "entry port" |
SiteWashington | NLR seat.layer2[Te3/1] | NLR seat.of[p25] |
SiteStanford | NLR sunn.layer2[Te3/4] | NLR sunn.of[p25] |
SiteGeorgiaTech | NLR atla.layer2[Te3/2] | NLR atla.of[p25] |
SiteClemson | NLR atla.layer2[Te3/2] | NLR atla.of[p25] |
SiteBbn | NLR chic.layer2[Te3/4] | NLR chic.of[p25] |
SiteWisconsin | NLR chic.layer2[TE3/4] | NLR chic.of[p25] |
SiteIndiana | N/A | NLR chic.of[p21] |
SiteRutgers | I2 rtr.wash[ge-7/0/3] | I2 of.wash[gi0/1] |
SiteBbn | I2 rtr.newy[ge-9/0/4] | I2 of.newy[gi0/1] |
Core VLAN translation
Clemson
Clemson's VLANs are translated into the native OpenFlow Core VLANs using access ports on the Atlanta OpenFlow Switch. This is done to allow Georgia Tech to also reach the core using the shared Atlanta FrameNet switch. Georgia tech uses the native OpenFlow Core VLAN IDs.
Port | Type | Name |
17 | 100/1000T | Clemson 3798 -> OF 3715 |
18 | 100/1000T | Clemson 3799 -> OF 3716 |
19 | 100/1000T | OF 3715 -> Clemson 3798 |
20 | 100/1000T | OF 3716 -> Clemson 3799 |
Cross Connect
The "cross-connect" between I2 and NLR in ATLA connects via I2 OF Atla, Te0/25 facing NLR OF Atla, port 28.
Note: atla.layer2.nlr.net[Te3/2] Is the port facing the NLR ATLA OpenFlow switch, in this sense, this port is the FrameNet endpoint.
Attachments (17)
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OF-INT-BB--11-Apr-2011.png (486.7 KB) - added by 13 years ago.
Openflow Core deployment map showing switchports and backbone integration
- OF-INT-BB 18-May-2011.png (584.4 KB) - added by 13 years ago.
- OF-INT-BB_18-May-2011.pdf (72.4 KB) - added by 13 years ago.
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OF-INT-BB 25-May-2011.png (584.3 KB) - added by 13 years ago.
new backbone diagram for May 25, 2011
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OF-INT-BB 25-May-2011.pdf (72.3 KB) - added by 13 years ago.
new backbone diagram for May 25, 2011
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OF-INT-BB 10-May-2011.png (245.4 KB) - added by 13 years ago.
adding May 10 BB diagram for historical purposes
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OF-INT-BB 10-May-2011.pdf (72.0 KB) - added by 13 years ago.
adding May 10 BB diagram for historical purposes
- OF-INT-BB 30-Jun-2011.pdf (72.7 KB) - added by 13 years ago.
- OF-INT-BB 30-Jun-2011.png (588.4 KB) - added by 13 years ago.
- geni-core-vlan-3715.png (57.9 KB) - added by 11 years ago.
- geni-core-vlan-3716.png (57.6 KB) - added by 11 years ago.
- geni-core-vlan-3717.png (58.3 KB) - added by 11 years ago.
- geni-core-vlan-3715-v2.jpg (95.3 KB) - added by 11 years ago.
- geni-core-vlan-3716-v2.jpg (93.9 KB) - added by 11 years ago.
- geni-core-vlan-3717-v2.jpg (98.3 KB) - added by 11 years ago.
- OF-INT-BB 28-Mar-2014.pdf (100.6 KB) - added by 11 years ago.
- OF-INT-BB 28-Mar-2014.png (614.1 KB) - added by 11 years ago.