Asante Technologies 3500 Series user manual Snmp Management Operations, Snmp Protocol

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Chapter 6. SNMP Management

The switch can be managed using a Simple Network Management Protocol (SNMP) compatible management station running platforms such as HP OpenView or MG Soft’s MIB Browser.

6.1 SNMP Management Operations

A network management application is concerned with performance statistics gathered by the devices on the managed network, in reading and changing current configuration information, and in receiving alerts of unusual events.

The information is stored in a database, which is described by Management Information Base documents (MIBs). Most of these MIBs are available from the Internet Engineering Task Force (IETF), the global body that defines Internet standards. Many managed devices also include data that is described by a proprietary MIB.

A managed device incorporates software called an agent. The agent is able to read the information in the device, to update configuration information and to communicate with a management application using a standard protocol (SNMP)

The switch supports the following Management Information Bases (MIBs):

1.MIB II: Management Information Base for Network Management of TCP/IP based Internets (RFC 1213).

2.Ethernet Interface MIB: Definitions of Managed Objects for the Ethernet-like Interface Types (RFC 1643).

3.Bridge MIB: Definitions of Managed Objects for Bridges (RFC 1493).

4.RMON MIB: Remote Network Monitoring Management Information Base (RFC 1757). Four groups are supported:

•The Ethernet Statistics Group

•The Ethernet History Group

•The Alarm Group

•The Event Group

5.ASANTE-SWITCH-MIB: Enterprise MIB for management of features specific to the 3524. The MIB file is available at Asanté’s website, http://www.asante.com.

6.2 The SNMP Protocol

The SNMP protocol is an industry standard protocol communicating over the User Datagram Protocol, exchanging Protocol Data Units (PDUs).

There are five different types of SNMP PDUs:

1.Get Request – The manager requests the value of a variable from the agent.

2.Get-Next Request – The manager requests the value of the next variable in order from the agent. This is often used to walk a MIB and retrieve many values one after the other.

3.Set Request – The manager tells the agent to change the value of a given variable.

4.Get Response – The agent returns the data for any of the above requests and confirms any changes of value.

5.Trap – The agent sends data to the manager on its own initiative in response to predefined events (i.e. hardware failure).

Note: The description above is accurate for version 1 of the SNMP protocol. Versions 2 and 3 add other types of PDUs.

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Contents IntraCore 3500 Series Quick Start Guide Gigabit Ethernet Switches User’s Manual IntraCore 3500 SeriesTable of Contents Page Package Contents IntroductionLEDs 1 IC3524 Models2 IC3548-2GT 4810/100Front and Back Panel Descriptions #49Management and Configuration Web-Based Interface Console InterfaceSnmp Management Installation Overview Hardware Installation and SetupSafety Overview Power Requirements Installation into an Equipment RackRecommended Installation Tools Environmental RequirementsGbic Interfaces Installing a GbicEquipment Rack Guidelines Removing a Gbic Installing Optional Hardware ModulesConnecting Power Gbic Care and HandlingConnecting to the Network 1 10/100BaseT Ports Cabling ProceduresGigabit Ethernet Ports Cabling Procedures SetupConnecting to a Console Connecting Via the Web Browser Changing the PasswordConnecting Via Telnet IP Assignment Snmp ManagementUsing the Stacking Feature IC3524 only Toggle Stacking Enable/Disable Accessing a Submenu ConfigurationLogging General Information Configuration MenuExiting a Submenu System Administration Configuration Changing System Administration InfoBootstrap Configuration System IP ConfigurationChanging System IP Information Snmp Configuration Changing Community StringsAdding or Updating a Trap Receiver Enabling Authentication TrapsDeleting a Trap Receiver Port Configuration Basic Port Configuration Menu appearsConfiguring Auto-Negotiation Enabling or Disabling a PortToggling Port Link Speed Configuring a Port ManuallyConfiguring 1000BaseX Ports Toggling Half to Full DuplexSetting Port Class of Service Advanced Port ConfigurationEnabling or Disabling 802.3x Flow Control Setting Port Default Priority Global Port ConfigurationUnicast Forwarding Database Configuration Displaying the Forwarding DatabaseSetting the MAC Address Age-Out Time Searching for a MAC AddressVlan Management Port Mirroring ConfigurationSecurity Management IP Multicast Traffic ManagementSetting the Monitor Port File Up/Downloading ConfigurationImage Downloading through Tftp Serial Downloading Configuration Performing a Software Upgrade at RuntimeResetting the Switch System Reset ConfigurationPerforming a Software Upgrade Scheduling a System Reset System LogUser Interface Configuration Clearing the System LogSetting Console Idle Time-out Period Setting Telnet Idle Time-out PeriodSystem Utility Changing the PasswordEnabling or Disabling the Web Server Viewing Statistics Spanning Tree Protocol Configuring Spanning Tree ParametersAdvanced Management Enabling and Disabling STPSpanning Tree Port Configuration Setting Port Priority and Path CostDuplicated IP Detection and Trap Snmp and Rmon ManagementRmon Management Enabling and Disabling Duplicated IP Trap Enabling and Disabling Station Movement TrapEnabling and Disabling Duplicated IP Detection Viewing a List of Duplicated IP AddressesConfiguring Port Security Configuring Port New Node Detection TrapConfiguring Security Level 2 or Level Configuring Port Lock and Intruder LockSetting the Intruder Trap Other Vlan Features of the switch Vlan Specifications for the IntraCore 3500 SeriesResetting Security to Defaults Inserting/Modifying a Port Trusted MAC AddressConfiguring Static Vlan Groups Kkxxxxxx KxxxxxxxAdvanced Static Vlan Configuration Setting the Port Vlan ID Configuring Vlan Port AttributesSpecifying Tagging or No Tagging for a Port Displaying a Vlan Port Summary Configuring Port Receive Frame TypeDisplaying a Summary of Vlan Groups Adding and Deleting VLANs from the PortResetting Vlan Configuration to Defaults Multicast AddressesEnabling and Disabling Igmp Snooping Configuring IP Multicast Traffic ManagementIgmp Snooping Displaying a Summary of Group AddressesInserting a Multicast Group Address IP Multicast Forwarding Database ConfigurationAdding Ports to the Selected Address Removing a Multicast Group Address To remove an addressAccessing with a Web Browser Web-Based ManagementFront Panel Button Genl Info General Information ButtonStatistics Button Port Config Port Configuration Button Span Tree Spanning Tree Button Snmp Button Addr Address Table ButtonVlan Button Port Configuration Creating or Modifying a Vlan Vlan ConfigurationAdding and Deleting Port Members Page Security Button Duplicate IP Button Snmp Management Operations Snmp ManagementSnmp Protocol Name Space Path Community Name and SecurityMIB Tree MIB Groups SupportedPage Port-Based VLANs Switching ConceptsVLANs Vlan ID and Tagged FramesHow It Works Port Vlan IDSpanning Tree Parameters Full Duplex Forward DelayFull Duplex, Flow Control and Auto-negotiation Port PriorityFlow Control Auto-NegotiationAppendix A. Troubleshooting Problem Possible SolutionsFeatures Appendix B. Features and SpecificationsSpecifications Environmental Range Physical CharacteristicsTechnical Support and Warranty Standards ComplianceFCC Compliance Statement Important Safety Instructions Appendix C. FCC Compliance and Warranty StatementsIntraCare Warranty Statement Page Pin Number Signal Name Appendix D. Console Port Pin OutsAppendix E. Online Warranty Registration Image Banks Appendix F. BootP ConfigurationBootstrap Configuration Loading Software Locally
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