CCNP HCIP network engineers know
the basic framework of the four levels of NETCONF
The NETCONF protocol is divided into four layers: content layer, operation layer, RPC layer, and communication protocol layer. The NETCONF protocol provides a standard framework and a collection of standard remote procedure call protocol RPC (Remote Procedure Call) methods.
The NETCONF protocol contains the following two parts:
1. NETCONF Manager: Mainly acts as a client in the network, runs on NMS/EMS, and manages the device by interacting with NETCONF Agent.
2. NETCONF Agent: mainly serves as the server in the network. NETCONF Agent sends configuration management by accepting NETCONF Manager. NETCONF Agent parses the request and manages the configuration of the device with the help of configuration management components.
NETCONF is divided into four basic levels, the basic framework is as follows:
The transport layer mainly provides a communication path for the interaction between NETCONF Manager and NETCONF Agent. Any transport layer protocol that meets the basic requirements can be used to carry NETCONF.
RPC layer. The RPC layer provides a simple RPC request and response mechanism that does not depend on the transport protocol.
The operation layer defines a series of basic operations of RPC that constitute the basic capabilities of NETCONF.
The content layer describes the configuration data involved in network management. Since the content layer is the only layer that has not been standardized, there is no standard NETCONF data modeling language and data model, so the configuration data of each manufacturer’s equipment may be different.
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