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What is SNMP?
SNMP is short for Simple Network Management Protocol. Formerly known as the Simple Gateway Monitoring Protocol (SGMP), Used to manage the communication line. It is an Internet-standard protocol for managing devices on IP networks. Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, and more. SNMP is consists of a set of network management standard, include an application layer protocol, a database schema and a group of data objects. These protocols can support network management for detecting the devices which connected the network whether there is any concern.
An SNMP-managed network consists of three key components: Managed device, Agent — software which runs on managed devices and Network management system (NMS) — software which runs on the manager.
With the SNMP’s development, here comes out 3 versions:
SNMP version 1 appeared in 1988:
RFC 1065 — Structure and identification of management information for TCP/IP-based internets
RFC 1066 — Management information base for network management of TCP/IP-based internets
RFC 1067 — A simple network management protocol
These protocols were weeded out by:
RFC 1155 — Structure and identification of management information for TCP/IP-based internets
RFC 1156 — Management information base for network management of TCP/IP-based internets
RFC 1157 — A simple network management protocol.
SNMP version 2 revises version 1 and includes improvements in the areas of performance, confidentiality, securities and manager-to-manager communications. It introduces GETBULK, an alternative to iterative GETNEXT for retrieving large amounts of management data in a single request. However, the new party-based security system is in SNMP version 2.
SNMP version 3 provides important security features: Confidentiality - Encryption of packets to prevent snooping by an unauthorized source. Integrity - Message integrity to ensure that a packet has not been tampered with in transit including an optional packet replay protection mechanism. Authentication: to verify that the message is from a valid source.
SNMP is the most commonly used in environmental management agreement. SNMP was designed to be protocol agnostic, so it can be used in the IP, IPX, AppleTalk, OSI and other transport protocol.
Sopto provides various fiber optical media converter chassis, such as 2u chassis with 2 power suppliers (Supporting up to 14 pcs of 10/100M or 10/100/1000M standalone media converters, 2 power suppliers) without SNMP; 2u chassis (Supporting up to 16 pcs of 10/100M media converter cards, 2 power suppliers) without SNMP; 2u chassis ( Supporting up to 16 pcs of 10/100M or 10/100/1000M media converter cards, 2 power suppliers and 1 management card) supports 802.3ah protocol, Console, WEB, SNMP, TELNET management; 2u chassis (Supporting up to 16 pcs of 10/100M media converter cards, 2 power suppliers and 1 management card) supports SNMP.