Topology data

When the network is discovered, both core NCIM tables and entity attribute tables are updated with topology data. These tables include Layer 1, Layer 2, Layer 3, device structure, routing protocol, containment, and technology-specific information.

The NCIM tables are not case-sensitive.

The core and entity attribute tables are listed in the data dictionary.

Data modeled by NCIM

NCIM models different types of network data, including the following:
IP networks
NCIM models network devices and device connections within layer 2 and layer 3 of the OSI model.
Optical networks
NCIM models optical network devices within layer 1 of the OSI model.
Routing networks
NCIM models routing networks based on routing protocols such as MPLS, BGP, and OSPF.
VLANs
NCIM models Virtual Local Area Networks (VLANs).
Radio access networks
NCIM models a variety of radio access networks (RANs), including GSM, UMTS, and LTE.