D-Link DES-2212 manual Monitoring the Switch, Displaying Port Statistics

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User’s Guide

♦Designated Bridge Displays the MAC address of the switch/bridge that is the designated bridge for the segment to which the port is attached.

♦Designated Port This is the port on each designated bridge that is attached to the LAN segment for which the bridge is the designated bridge

♦Port Path Cost (1–65535) Allows you to specify a path cost for the port. By convention, 10Mbps ports are given a path cost of 100, and 100Mbps ports are given a path cost of 10.

♦Port Priority (0–255) Allows you to set a priority for the port. The priority is used in conjunction with the physical port number to compute the port ID used for selecting the root port. The lower the port ID, the more likely the port is to become the root port.

Monitoring the Switch

The switch supports several monitoring functions, allowing you to keep statistics on the operation of each port.

Displaying Port Statistics

The switch collects Ethernet transmission statistics for each individual port. All counters start at 0 when you enter the statistics display. The statistics displayed are:

♦MAC Rx Errors Counts receive errors occurring on the port.

♦CRC Errors Counts otherwise valid frames that fail the CRC check.

♦Oversize Frames Counts frames longer than the 1518-byte (octet) limit set by the Ethernet standard. This is likely caused by a software problem.

Using the Console Interface

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Contents Recyclable Wichtige Sicherheitshinweise Warranties Exclusive Limited Warranty Software Trademarks Table of Contents Making Network Connections Product Specifications Page About this Guide Page Introduction DES-2212 Ethernet/Fast Ethernet SwitchPorts Management Switching100Mbps Fast Ethernet Introduction Cables and Connectors100BASE-TX Technology Overview Network TopologyConnectivity Rules HubsEthernet Switching Introduction Front Panel External FeaturesExternal Features LED Indicators Rear Panel External Features Page Unpacking the Switch InstallationLocation Installing the SwitchRack Mounting Connecting Power Replacing the Fuse 10BASE-T Connection Making Network Connections100BASE-T Connection MII Connection Making Network Connections Connecting to the Switch Using the Console InterfaceConsole Usage Conventions First Time Connecting To The Switch Steps to create a Super User or General User Super and General User PrivilegesMain Menu for General User Super User and General User Privileges Login On The Switch Console By Registered Users Choose Change Password Changing your PasswordAdding a New User Adding and Deleting UsersDeleting a User TCP/IP Settings Setting up the SwitchUsing the Console Interface 10. TCP/IP Parameters Configuration Menu Out-of-band management and console settings11. Out-of-Band/Console Setting Menu Software Updates12. Software Update Menu Snmp Information and Console Timeout13. System Configuration Menu Snmp Traps 14. Snmp Trap Manager Configuration MenuSnmp Security Community Names Switch ConfigurationControlling Individual Ports 16. Port Configuration Menu17. STA, Forwarding Table Forwarding ConfigurationUsing the Console Interface Spanning Tree Protocol and Configuration Introduction to Spanning Tree Protocol Parameters Using the Console Interface Setting Spanning Tree Protocol Parameters Using the Console Interface Using the Console Interface Using the Console Interface Displaying Port Statistics Monitoring the SwitchUsing the Console Interface System Reset Resetting the SwitchFactory Reset Using the Console Interface Page General Product SpecificationsEnvironmental and Physical 10BASE-T/100BASE-TX Connectors Cables ConnectorsStraight-through Cable Crossover Cable MII ConnectorMII Connector Pin Assignment E , D B RS-232 DB9 Pin SpecificationE , D B -2 R 2 Page Sysdescr string Boot Configuration FileSyslocation string Clear-SNMP-comm-table Index IndexSnmp Page Offices Page Registration Card