RFC 2155 (rfc2155) - Page 2 of 124
Definitions of Managed Objects for APPN using SMIv2
Alternative Format: Original Text Document
RFC 2155 Definitions of Managed Objects for APPN June 1997 The Framework permits new objects to be defined for the purpose of experimentation and evaluation. 3. Overview This document identifies a set of objects for monitoring the configuration and active characteristics of devices with APPN capabilities, and for controlling certain characteristics. APPN is the aspect of Systems Network Architecture (SNA) that supports peer- to-peer networking. These networks transport both independent and dependent LU session traffic. See the SNANAU APPC MIB [7] and the SNA NAU MIB [8] for management of these sessions. See also the DLUR MIB[9], and the HPR MIB[10] for management of extensions to the APPN architecture. In this document, we describe APPN managed objects. An APPN network comprises various types of nodes, and transmission groups (TGs) that connect the nodes. Network nodes (NNs) provide directory and routing functions for session establishment. NNs may be session end points or intermediate nodes in a session. A border node is a type of network node that connects networks together for session establishment without fully merging them. End nodes (ENs) are session end points that receive directory and routing functions from network nodes, over control-point to control-point (CP-CP) sessions. Low-entry networking (LEN) nodes are also session end points, but do not support CP-CP sessions, and therefore need additional manual configuration definitions to establish sessions in an APPN network. ENs and LEN nodes may have minimal directory and routing functions to establish control sessions (ENs) or to connect into the APPN network (LEN nodes). Virtual routing nodes (VRNs) are not really nodes, but rather common definitions among actual nodes in a shared transport facility such as a local area network (LAN) that allow these actual nodes to temporarily establish a logical link with one another without defining each other's link-level addressing information. Ports and link stations are the node's interface to the data link control (DLC), which provides the physical transport, or to another protocol such as Data Link Switching (DLSw), which provides transport over an IP network. See the SNADLC SDLC MIB[11], the SNADLC LLC MIB[12], and the DLSw MIB[13]. A link station uses a port to make a connection to another node. This connection establishes a TG between the two nodes. Clouston & Moore Standards Track
