The NETCONF Working Group has completed a base protocol to be used for configuration management. However, the NETCONF protocol does not include a modeling language or accompanying rules that can be used to model the management information that is to be configured using NETCONF. The NETMOD working group has defined the data modeling language YANG but no IETF models exist yet. The purpose of the NETMOD working group is to support the ongoing deployment of YANG by developing a set of core YANG data models and other activities that will allow network operators to use YANG for configuration and management of network elements. The NETMOD Working Group will initially work on the following items: 1. Core system data model 2. Core interface data model 3. Core routing data model that can be augmented with routing protocol specifics. This requires appropriate active editorial participation from routing experts and review at WGLC by the Routing Area working group. 4. SMIv2 translation to YANG for read-only operational data and notifications. Guidance will be provided on how to reference existing data structures in SMIv2 from YANG. The NETMOD Working Group will not work on another version of YANG. All new charter items must be fully interoperable with implementations of RFC 4741bis and/or RFC 6020. It will also not serve as a review team for YANG modules developed by other working groups. The WG will consult with the NETCONF working group to ensure that NETMOD's decision do not conflict with planned work in NETCONF.