Differences between an ASON network and a common SDH network

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Differences between an ASON network and a common SDH network:
In an ASON network, services are classified into several protection levels including diamond, gold, silver, copper and iron. The protection level can be enhanced and the service rerouting function is added in an ASON network. As a result, the actual bandwidth utilization of an ASON network is higher than 50%. A common network does not have the rerouting function.

Other related questions:
Differences between a network with PID networking using OA boards and a common network
For common networking without PID boards, connecting the built-in VOAs on OA boards is not mandatory. For PID board networking, however, the built-in VOAs on OA boards must be connected because PID boards are commissioning-free and the VOAs need to be automatically adjusted to ensure that the output optical power satisfies requirements.

Differences between the primary NE and gateway NE on an ASON network
The primary NE is responsible for communication between the ASON network and U2000 server. It transmits information on the ASON control plane and reports ASON events to the U2000 server. An ASON domain can have only one primary NE and one secondary NE. A gateway NE is connected with the U2000 server using the TCP/IP protocol. Generally, an NE that is connected to the U2000 server through a LAN or WAN is a gateway NE. Multiple gateway NEs can be connected to the U2000 server. Generally, you can configure the primary or secondary NE as the gateway NE on an ASON network to leverage ECC bandwidth resources.

What are the differences between network bridge MAC addresses and common MAC addresses
The two types of MAC addresses have the same functions. Packets bridged by network bridges are complete Ethernet Layer 2 packets.

Relationship between optical NEs and electrical NEs on an ASON network
When the optical and electrical NEs of an ASON NE are not split, the OTU or FIU boards on the ASON NE can function as edge points, and the related TE links can be automatically created when the boards are created. When the optical and electrical NEs are split, the multiplexer/demultiplexer or other optical-layer boards can function as the edge points of the optical NEs. When the fiber connections between the optical ports on the multiplexer/demultiplexer boards and those on the OTU boards are created, the intra-NE links that carry OCh signals are automatically created.

OSN 8800 not supporting SDH ASON
SDH ASON is called OCS ASON in OSN 8800.

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