Cabletron Systems SmartSTACK ELS100-S24TX2M User Manual

Also see for SmartSTACK ELS100-S24TX2M: Quick installation guide Quick installation guide Management guide

Contents

9033260-01 Product Overview 9• SNMP-based network manager, in-bandThe system can also be managed using SNMP, the most commonprotocol used today for network management. Standard agent MIBsembedded in the switch provide basic SNMP management throughindustry-standard SNMP applications.Management security protection is provided based on SNMPcommunity names. See Chapter 4, “SNMP Management,” in theManagement Guide for more information.RMONRMON (Remote Monitoring) is a facility used to manage networksremotely while providing multi-vendor interoperability between monitoringdevices and management stations. RMON is defined by an SNMP MIB.This MIB is divided into nine different groups, each gathering specificstatistical information or performing a specific function. RMON-capabledevices gather network traffic data and then store them locally untildownloaded to an SNMP management station.The ELS100-S24TX2M supports four of the nine groups of RMON definedfor Ethernet networks on a per segment basis. Specifically, these are:• Statistics: a function that maintains counts of network traffic statisticssuch as number of packets, broadcasts, collisions, errors, anddistribution of packet sizes.• History: a function that collects historical statistics based on user-defined sampling intervals. The statistical information collected is thesame as the Statistics group, except on a time stamped basis.• Alarm: a function that allows managers to set alarm thresholds basedon traffic statistics. Alarms trigger other actions through the Eventgroup.• Event: a function that operates with the Alarm group to define anaction that will be taken when an alarm condition occurs. The eventmay write a log entry and/or send a trap message.Note that RMON statistics and other information can only be viewed usinga connection to the on-board Web agent or via other compatible SNMPmanagement applications.Port MirroringThe ELS100-S24TX2M switch includes the ability to mirror the trafficbeing switched on any port for purposes of network traffic analysis andconnection integrity. When this feature is enabled, a protocol analyzer orRMON probe can be connected to the mirror port. You can only mirror oneport to another port at one time. Port mirroring occurs at the same speedconfigured for the port (10Mbps-to-10Mbps or 100Mbps-to-100Mbps).Port mirroring is configurable using the console interface menus, the on-board Web agent, or via SNMP.