Intel EE110MM manual Interpreting this screen

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Update interval: Selects the time period between updates. For example, an Update interval of 5 sec. means the Console Manager checks the Management Module every five seconds for updated information.

Utilization Breakdown: Displays the amount of time the selected collision domain had a utilization percentage in the particular range. In the example, the 10 Mbps collision domain was at 0-9% utilization for 41 minutes and 16 seconds.

Collisions/sec Breakdown: Displays the amount of time the selected collision domain had a collision per second count in the particular range. In the example, the 10 Mbps collision domain had 0-5 collisions per second for 37 minutes and 59 seconds.

Total time: Displays the total amount of time the Management Module collected the history. If the total time is less than the View for the last value, then the Management Module or hub was probably reset or powered off.

Minimum: Displays the minimum utilization percentage or collision count for the time period.

Maximum: Displays the maximum utilization percentage or collision count for the time period.

Average: Displays the average utilization percentage or collision count for the time period.

Interpreting this screen

It’s best to view utilization coupled with collisions before making any decisions on the saturation of your network. Generally, Ethernet saturation starts to occur when the utilization reaches 30% and above. However, if the collision count is low, you don’t have a saturated network, but an efficient network.

If both the utilization percentage and the collision count are consistently high (above 30% for utilization and 50-100 collisions/ second or more), then you have a saturated network and will see poor performance. The best way to alleviate a saturated network is to segment the network (have fewer devices share a fixed amount of bandwidth). You can do this by adding a switch to the network.

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Contents Intel Express 10/100 Stackable Hub Management ModuleUser Guide July First edition669884-001 This guide covers the following productTurn on the power after installing Quick StartUsing the LCD ContentsUsing the Console Manager ChapterIndex Technical InformationContacting Intel Customer Support Inside back coverManagement Overview of HubHub numbering Managing multiple hubsMIB identification Collision domain assignments100Mbps 100Mbps 10Mbps 10MbpsSet IP address Manual BootP Sleep ConfigLCD menu tree StatsReset button. See page 2 Using the LCDNavigating Esc - use to go back a levelViewing statistics Changing the LCD contrastDomain PortSetting the sleep mode Changing the IP configurationDisabling a port Setting the serial port baudViewing trap messages Viewing About informationUsing the Console Manager Accessing with the serial portEnter Accessing with Telnet telnet ETo use Telnet Toggling between insert and overstrike mode To return to the Top screen at any time, press cT Top screen mainTop screen 1. System Configuration System Configuration screenLocation Usesin the stack has no effect on hub numbering Top screen Local IP Configuration screenIP address: The unique user-assignednetwork address for the Management Module Remote IP Configuration screen •Press <CANCEL> to return to the previous menu 1.System Configuration SNMP configuration SNMP Configuration screenTrap Receiving Stations screen <Define trap receiving stations>1.System configuration <SNMP configuration> Supported traps include Top screen 2. Port configuration Port Configuration screenOK: The port is functioning normally Top screen 3. Collision domain statistics Collision Domain Statistics screen10Mbps 10Mbps Frames too long: The number of frames detected that exceed the maximum permitted frame size of 1518 octets 4.Port statistics Statistic: traffic Port Statistics screen trafficStatistic: Use ASor zto select the type of port statistics you want to view. Errors is the other type of statistic option you can view. See page 4.Port statistics Statistic: errors Port Statistics screen errorsStatistic: Use ASor zto select the type of port statistics to view. Traffic is the other type of statistic option you can view see page Late events: The number of collisions detected after the allowable detection period. Usually indicates a network topology problem, such as daisy-chainingtwo Express hubs running at 100 Mbps with UTP cable instead of Intel Cascade Cables in a stack, daisy-chainingtoo many hubs running at 10 Mbps, or using cables longer than 100 meters Top screen 5. Network health checks Network Health Checks screenWrong Speed Device screen Page Check for wrong polarity cabling to devices Wrong Polarity Cabling screenPage 5.Network health checks <Top traffic generators> Top Traffic Generators screenUpdate interval: Selects the time period between updates. For example, an Update interval of 5 sec. means the Console Manager checks the Management Module every five seconds for the list of devices that are generating the most traffic Utilization and Collision History screen Interpreting this screen Top screen 6. Login, security, and reset options Login, Security & Reset Options screenReset Front panel reset buttonTop screen 7. About About screenProduct name: Displays the type of device the Management Module is supporting Top screen 8. Logout Logout screenDefaults Technical InformationLocating MIB files Console Manager Limited Hardware Warranty Returning a Defective Product RMALIMITATION OF LIABILITY AND REMEDIES Federal Communications Commission FCC Statement Manufacturer DeclarationAVERTISSEMENT WARNUNG AVVERTENZAADVERTENCIAS I Index Page Page Page Page Software updates TroubleshootingInstallation notes How to access