Important: Price Disclaimer!


1. Prices for Mellanox products were taken from from Colfax Direct, a web shop of Colfax International.
2. Prices are accurate as of December 2013.
3. For recent prices and current equipment, please go to Colfax Direct.


Short help for making automated queries:


Note: Requests are case-sensitive.

Request
What it does
task=help
This page
task=showdatabase
Prints contents of the switches database
task=design
Designs a fat-tree network, see additional parameters below:
  network_topology=<topology>
Use a particular topology. Available values for <topology> are:
fat-tree — fat-tree networks (default)
torus — torus networks
network_vendor=<vendor>
Use database for a particular vendor. Available values depend on what databases you have installed.
mellanox — Mellanox Technologies (shipped with the tool by default)
nodes=600
Number of cluster compute nodes that the network must support
nodes_future_max=700
Number of nodes that the network must be able to expand to. Only applicable to fat-tree networks, because torus networks are not easily expandable (trivial expansion attempts, such as stretching a torus along one of its dimensions, lead to imbalanced networks)
blocking=<blocking_factor>
Allows to build networks with blocking (not applicable to star topologies). Default value is "1,0", which denotes a non-blocking network. Fractional values are accepted. The tool arranges the ports on switches in a way that guarantees that the resulting blocking factor will be less than or equal to the value specified here.
prefer_expandable=<boolean>
Specifies whether the user prefers easy expandability over lowest cost. Only applicable to fat-tree networks. Default value for automated queries is "false": for example, a network designed in this way could use only 30 ports out of 36 on edge switches -- this is cheaper, but not easily expandable because of complications of laying new cabling. However, most engineers expect edge switches to be filled as densely as possible, therefore the web form sets this to "true" by default. Resulting networks are more easily expandable, at the cost of more cables between edge and core layers.
output_type=<type>
Set output format. Available values for <type> are:
text — human-readable text
nvp — name-value pairs (default)
csv — comma-separated values (useful for loading results into spreadsheets)