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

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 49