ASON

The automatically switched optical network (ASON) is a new generation optical transmission network. An ASON NE refers to the equipment that has ASON features. An ASON NE also has the features of traditional WDM NEs besides the ASON features. The U2000 Web LCT manages the ASON network by integrating the ASON features with the WDM features.

• Basic Concepts of ASON
  The basic concepts related to the ASON are the three planes, label switched path (LSP) and rerouting.
• Function Structure of the ASON
  An ASON network consists of ASON NEs, TE links, domains and SPC (soft permanent connections).
• ASON Network Protection and Restoration
  As the transmission network develops, the survivability of the network becomes a key factor in the design, operation and maintenance of the network. An ASON network must have effective and flexible protection and restoration schemes.
• ASON Protocol
  Huawei OptiX GCP applies the link management protocol (LMP) as the link management protocol, OSPF-TE as the routing protocol, and RSVP-TE as the signaling protocol.
• ASON Links
  ASON Links include control channels, control links, and TE links.
• SLA
  The ASON network can provide services of different QoS to different clients.
• Diamond WDM ASON Trail
  Diamond WDM ASON trails have the best protection ability. When there are enough resources in the network, diamond WDM ASON trails provide a permanent 1+1 protection. The diamond WDM ASON trails are classified into ODU0, ODU1 trail, ODU2 trail and ODU3 trail. Diamond services are applicable to voice and data services, VIP private line, such as banking, security and aviation.
• Silver WDM ASON Trail
  Silver WDM ASON trail, including WDM ASON OCh trails, ODU0 trails, ODU1 trails, ODU2 trails, ODU3 trail and ODU4 trails, the revertive time is several seconds. The silver level service is suitable for those data or internet services that have low real-time requirement.
• Copper WDM ASON Trail
  The copper services are seldom used. Generally, temporary services, such as the abrupt services in holidays, are configured as copper services.The copper WDM ASON trails are classified into OCh trail, ODU0 trail, ODU1 trail, ODU2 trail, ODU3 trail and ODU4 trails .