Operation Manual
Port Commands
Mobility System Software Command Reference Guide
Version 7.3
5 – 48
Defaults
All types of statistics are displayed for all ports. MSS refreshes the statistics every 5
seconds, and the 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 1.0.
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 5– 4 to control the monitor display.
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.
Examples
The following command starts the port statistics monitor beginning with octet statistics
(the default):
MX# monitor port counters
As soon as you press Enter, MSS clears the window and displays statistics at the top of the
window.
Port Status Rx Octets Tx Octets
===============================================================================
1 Up 27965420 34886544
...
To cycle the display to the next set of statistics, press the Spacebar. In this example, packet
statistics are displayed next:
receive-errors Displays errors in received packets first.
transmit-errors Displays errors in transmitted packets first.
collisions Displays collision statistics first.
receive-etherstats Displays Ethernet statistics for received packets first.
transmit-etherstats Displays Ethernet statistics for transmitted packets first.
Table 5– 4. Key Controls for Monitor Port Counters Display
Key Effect on Monitor Display
Spacebar Advances to the next statistic type.
Esc Exits the monitor. MSS stops displaying the statistics and displays
a new command prompt.
c Clears the statistics counters for the currently displayed statistics
type. The counters begin incrementing again.