Core networking for the Center was updated in 2011. The Center's internal Ethernet network infrastructure is based on an a core Arista 7508 10Gigabit Ethernet switch. It is an Enterprise class switch, with redundant supervisor engines. The switch has four 48 port 10GigE blades. All ports on the switch can run at the full 10Gigabit line speed. Core infrastructure hosts and Network Attach Storage are directly connected to this core Arista switch. Compute nodes connect to Dell Powerconnect 6248 edge switches with either two or four 10GigE uplinks to the core Arista.
The Center also has two Arista 7048 edge switches with 48 GigE ports and four 10GigE ports connected to the core Arista switch. These two switches support management related hosts and some one-off departmental servers.
The Center's clusters contain several high-performance
low-latency networks used for interconnecting nodes within the
clusters. The u2 cluster has 256 nodes connected with an
older Myrinet network. New IBM and Dell nodes are all
connected by Infiniband networks. See the U2
hardware page for more details and information on how to run on
these particular networks.
Through New York State's
advanced research network (NYSERNet), CCR and UB have access to
all major high speed communication networks commonly referred to as
the Next Generation Internet. NYSERNet leverages commercial
connectivity for its member institutions, provides dedicated access
to dark fiber, and a host of other