Chapter 4 SNMPv1 Organization and Information Models SNMP management is also referred to as Internet management.Any network that uses the TCP/IP protocol suite is an ideal candidate for SNMP management.SNMP network management systems can manage even non- TCP/IP network elements through proxy agents. SNMP management is the most widely used network management system (NMS).Most of the network components used in enterprise network systems have built-in network agents that can respond to a an SNMP network management system
Chapter 4 SNMPv1 : Organization and Information Models SNMP management is also referred to as Internet management. Any network that uses the TCP/IP protocol suite is an ideal candidate for SNMP management. SNMP network management systems can manage even nonTCP/IP network elements through proxy agents. SNMP management is the most widely used network management system (NMS). Most of the network components used in enterprise network systems have built-in network agents that can respond to an SNMP network management system
Chapter 4 SNMPv1 Organization and Information Models 4.1 Managed Network:Case Histories and Examples Let us look at some real-world experiences that demonstrate the power of network management before learning how it is accomplished.As with any good technology,the power of technology can result in both positive and negative results.Atomic energy is a great resource,but an atomic bomb is not!A network management system is a powerful tool,but it could also bring your network down if it is not "managed"properly
Chapter 4 SNMPv1 : Organization and Information Models 4.1 Managed Network: Case Histories and Examples Let us look at some real-world experiences that demonstrate the power of network management before learning how it is accomplished. As with any good technology, the power of technology can result in both positive and negative results. Atomic energy is a great resource, but an atomic bomb is not! A network management system is a powerful tool,but it could also bring your network down if it is not "managed" properly
NMS 192.168.252.1102 92,168252. Router 2 Backbone Network Router 1 Hub 1 Hub2编 172.16.46.2 172.16.46.3 ooooooooo ooooooooo Figure 4.1 shows a managed LAN that was discovered by a network management system.We show here only a subnetwork of a larger network managed by the NMS
Figure 4.1 shows a managed LAN that was discovered by a network management system. We show here only a subnetwork of a larger network managed by the NMS
4.2 The History of SNMP Management SNMP management began in the 1970s.Internet Control Message Protocol (ICMP)was developed to manage ARPANET.ICMP is a mechanism to transfer control messages between nodes.A popular example of this is Packet Internet Groper (PING),which is part of the TCP/IP suite now.PING is a very simple tool that is used to investigate the health of a node and the robustness of communication with it from the source node.The ARPANET,which started in 1969,developed into the Internet in the 1980s with the advent of UNIX and the popularization of client/server architecture. Data was transmitted in packet form using routers and gateways.TCP/IP-based networks grew rapidly,The National Science Foundation officially dropped the name ARPANET in 1984 and adopted the name Internet
4.2 The History of SNMP Management SNMP management began in the 1970s. Internet Control Message Protocol (ICMP) was developed to manage ARPANET. ICMP is a mechanism to transfer control messages between nodes. A popular example of this is Packet Internet Groper (PING), which is part of the TCP/IP suite now. PING is a very simple tool that is used to investigate the health of a node and the robustness of communication with it from the source node. The ARPANET, which started in 1969, developed into the Internet in the 1980s with the advent of UNIX and the popularization of client/server architecture. Data was transmitted in packet form using routers and gateways. TCP/IP-based networks grew rapidly, The National Science Foundation officially dropped the name ARPANET in 1984 and adopted the name Internet
4.3 Internet Organizations and Standards 4.3.2 Internet Documents RFC was just what the name implies,a Request for Comments.The early RFCs were messages between the ARPANET architects about how to resolve certain problems.Over the years,RFC has become more formal. 4.4 The SNMP Model A network management system acquires a new network element through a management agent or monitors the ones it has acquired.There is a relationship between the manager and the agent.Since one manager is responsible for managing the designated functions of many agents,it is hierarchical in structure.The infrastructure of the manager-agent and the SNMP architecture that it is based on form the organization model
4.3 Internet Organizations and Standards 4.3.2 Internet Documents RFC was just what the name implies, a Request for Comments. The early RFCs were messages between the ARPANET architects about how to resolve certain problems. Over the years, RFC has become more formal. 4.4 The SNMP Model A network management system acquires a new network element through a management agent or monitors the ones it has acquired. There is a relationship between the manager and the agent. Since one manager is responsible for managing the designated functions of many agents, it is hierarchical in structure. The infrastructure of the manager-agent and the SNMP architecture that it is based on form the organization model