The Obsidian Bowman™ is a Global Fabric Controller

Much more than a drop-in replacement for conventional subnet managers. When combined with Crossbow R400 it enables a fabric consisting of multiple subnets. Add Longbow and that fabric can span the globe as demonstrated by InfiniCortex.

Bowman has a number of features that set it apart:
  • fast subnet initialization, critical for large fabrics
  • configurations guaranteed to be deadlock free (no credit loops)
  • true multi-subnet support for arbitrary and compound topologies
  • native support for automatic path migration


Description InfiniBand
Node Type
B400 Global Fabric Controller 3 × 4X QDR host channel adapter