NE Equivalent Coefficient
The NE equivalent coefficient is the ratio of the resources used by physical NEs or ports to the resources used by equivalent NEs.
Equivalent NE and Equivalent Coefficient
· Equivalent NE: The functional features, cross-connect capacity, and number of boards, ports, or channels are specific to the NE types. As such, the number of NEs that the NMS can manage depends on the types of NEs in the networks. To simplify the description and calculation of the management capability, the concept of equivalent NE was defined so that NEs of different types or a number of ports can be converted to equivalent NEs by a uniform criteria according to the system resources that they require. The system resources required by an equivalent NE are equal to the resources for managing an STM-1 transport NE.
· Equivalent coefficient: Equivalent coefficient = (Resources used by physical NEs or ports)/(Resources used by equivalent NEs)
As demonstrated by the results of objective testing conducted on the U2000 in different types of environments, a single U2000 can manage a maximum of 15,000 physical NEs or 20,000 equivalent NEs. The management capacity is 15,000 physical NEs if they equal fewer than 20,000 equivalent NEs. The management capacity is 20,000 equivalent NEs if physical NEs equal more than 20,000 equivalent NEs. The U2000 supports concurrent logins of 100 clients.
The management scales of the U2000 are defined as follows:
· Small-scale network: less than 2000 equivalent NEs
· Medium-scale network: 2000-6000 equivalent NEs
· Large-scale network: 6000-15000 equivalent NEs
· Super-large-scale network: 15000-20000 equivalent NEs
Calculating the Number of Equivalent NEs
Generally, the number of equivalent NEs that the U2000 can manage is calculated according to the following rules:
· The basic unit of an equivalent NE for the U2000 is OptiX Metro 1000.
· Virtual NE is equal to one equivalent NE. A pre-configured NE is equal to a real NE. One third-party NE is equal to one equivalent NE. The calculations of equivalent coefficients for the OEM equipment and Huawei equipment are the same.
· Number of equivalent NEs = Number of equivalent NEs in the transport domain + Number of equivalent NEs in the IP domain + Number of equivalent NEs in the access domain
+ Number of equivalent NEs in the core network
