One of the key features of optical networks is protection switching. VMware Smart Assurance Optical Transport Manager supports Layer 1 network topologies with the following protection schemes for SONET/SDH networks:

  • 1+1 Automatic Protection Switching (APS)

  • 1:N protection

  • 1+1 protection

  • 2-fiber Bidirectional Line Switched Ring (BLSR) or 2-fiber Multiplex Section-Shared Protection Ring (MS-SPRing)

  • 4-fiber BLSR or 4-fiber MS-SPRing

  • UPSR (SNCP)

    The following protection scheme is supported for the WDM network:

  • 1+1 ClientCircuit/TopologicalLink Protection

    The following protection scheme is supported for the WDM NG domain:

  • Y-cable protection

  • SNC protection