RFC1157

Description: Defines SNMPv1 protocol operations and message formats for network management per RFC 1157.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Despite its name referencing the RFC 1157 SNMPv1 protocol specification, this module is a Siemens-specific placeholder MIB exposing only a handful of enterprise OID branch nodes (siemensRFC1157a through e) rather than the protocol's actual operations. It defines no traffic, protocol-operation, or performance objects; it functions purely as a private OID namespace stub used to reserve or organize Siemens enterprise identifiers. As such it carries no hardware or software status data of its own — no uptime, temperature, CPU, or fault objects — and is not intended for direct device polling. It nominally references the SNMPv1 standard by name but in practice is a vendor placeholder, likely used by other Siemens MIBs for OID allocation. It appears only in the compiled MIB source tree of Siemens equipment as a structural/organizational module, never as something an admin polls. Engineers can download the RFC1157 file directly to load it into their MIB browser.

This module only defines placeholder object identifier nodes (siemensRFC1157a, siemensRFC1157b, etc.) with no tables, counters, or status objects behind them, so there is no realistic monitoring scenario — it is purely an OID namespace stub, not a data-bearing module.

Siemens implementation of RFC 1157 SNMP trap definitions for device cold/warm start and link status events.