Number of preset restoration trails that can be configured for electrical-layer ASON

28

When the system resources are sufficient, two preset restoration trails can be configured for each ASON service.

Other related questions:
ASON trail quantity license
1. Basics for ASON trail quantity licenses (1) License name: Fee of each WDM ASON service port (2) License function: maximum number of supported ASON WDM trails (bidirectional) (3) License applicable object: number of OTU board ports (rate specific) (4) License model: Four rates are supported, namely, �?2.5G, 2.5G�?0G, 40G, and 100G Each OTU board port corresponds to one license. (5) License calculation: Maximum number of manageable ASON WDM trails (bidirectional) = Number of saleable licenses/2 For example, when a user purchase ten <2.5G licenses and twenty 40G licenses, the user can manage a maximum of five 2.5G LSPs and ten 40G LSPs on the NMS. 2. Query for ASON trail quantity licenses: On the U2000, choose Help > License Management > License Information.

Whether there are restrictions on the number of TE links on an optical-layer ASON network or an electrical-layer ASON network
On an optical-layer ASON network, a TE link can only be created between FIU boards. The quantity of TE links is determined by the NE scale of the network. Generally, only a few TE links are configured on the network. On an electrical-layer ASON network, ODUk links of different levels can be created based on line board types. Generally, a large number of TE links are configured on the network. An electrical-layer ASON network has far more TE links than an optical-layer ASON network. More links on a network will consume more network resources. Therefore, it is required that an electrical-layer ASON network be smaller than an optical-layer ASON network.

Restrictions on a network for which both optical-layer ASON and electrical-layer ASON are configured
Optical-layer ASON and electrical-layer ASON can be configured on the same network but they cannot be configured on the same NE.

Principles for automatic discovery of electrical-layer TE links for ASON services
Electrical-layer TE links for ASON services are verified through electrical-layer overhead bytes. For the principles of automatic TE link discovery, see the ASON User Guide.

Whether OLP boards can be used in electrical-layer ASON
Huawei OTN ASON solution can be implemented in two ways: optical-layer ASON (OTN_O) and electrical-layer ASON (OTN_E). Optical-layer ASON achieves service grooming at the OCh wavelength level, while electrical-layer ASON achieves service grooming at the ODUk sub-wavelength level.

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