Changes between Version 39 and Version 40 of NetworkCore


Ignore:
Timestamp:
03/27/13 09:56:31 (7 years ago)
Author:
tupty@bbn.com
Comment:

Update intro paragraph to reflect purpose of backbone interconnect VLANs

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  • NetworkCore

    v39 v40  
    33The initial Spiral 3 GENI network core is a set of OpenFlow-capable switches in NLR and Internet2.
    44
    5 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.
     5There are currently three standing backbone interconnect VLANs (3715, 3716, and 3717) carried on the ten switches in the core, which are located in the nine cities shown on the maps below. Two of the VLANs in each provider are topologically a broken ring (to help prevent accidental loops), with the two rings in each VLAN linked in Atlanta.  The third VLAN (3717) is a ring within each provider. The gap in each of the broken-ring VLANs is between two different links, to provide either a longer or shorter path through the core between two switches. The three VLANs are not interconnected in the core, and should not extend beyond the backbone providers into regionals or campuses.
    66
    77= VLAN 3715 =