3Com 3CRWX120695A, 3CRWX440095A manual Access All, Key Controls for Monitor Port Counters Display

monitor port counters 69

Defaults — All types of statistics are displayed for all ports. MSS refreshes the statistics every 5 seconds. This interval cannot be configured. Statistics types are displayed in the following order by default:

„Octets

„Packets

„Receive errors

„Transmit errors

„Collisions

„Receive Ethernet statistics

„Transmit Ethernet statistics

Access — All.

History—Introduced in MSS Version 3.0.

Usage — Each type of statistic is displayed separately. Press the Spacebar to cycle through the displays for each type.

If you use an option to specify a statistic type, the display begins with that statistic type. You can use one statistic option with the command.

Use the keys listed in Table 15 to control the monitor display.

Table 15 Key Controls for Monitor Port Counters Display

Field Description

Spacebar Advances to the next statistic type.

Esc	Exits the monitor. MSS stops displaying the statistics and displays a new
	command prompt.

cClears the statistics counters for the currently displayed statistics type. The counters begin incrementing again.

For error reporting, the cyclic redundancy check (CRC) errors include misalignment errors. Jumbo packets with valid CRCs are not counted. A short packet can be reported as a short packet, a CRC error, or an overrun. In some circumstances, the transmitted octets counter might increment a small amount for a port with nothing attached.