The concepts and standards of the ASON appear on the premise that the traditional SDH transmission system is widely used. The reasonable introduction schemes are necessary.
Two basic introduction schemes are described as follows.
- To create an ASON network:
When the backbone network and MAN need to expand the capacity, you can consider creating the ASON network.
- To upgrade a traditional WDM network to an ASON network:
If Huawei OptiX OSN series products are deployed in existing network, new software can be loaded to upgrade the network to an ASON network. If NEs on the existing network can be used to deploy ASON features, this scheme does not require new equipment and the network can be smoothly upgraded. If NEs on the existing network cannot be used to deploy ASON features, the network needs to be reconstructed and then upgraded.
Interconnection between ASON and WDM networks
A great number of WDM networks are currently in service. Hence, for the development of the ASON, the interconnection between ASON and WDM networks becomes a key factor.
The ASON and WDM networks share the same service granularities, such as ODU2, and ODU1. Hence, the interconnection between ASON and WDM networks is not a problem from the viewpoint of service.
The ASON and WDM networks can be uniformly managed only if the equipment in the network is the Huawei OptiX series equipment.