Intel 654655-001 manual Monitoring traffic, Commands used, To check traffic on a port

C H A P T E R 2 Configuring and Managing the Switch

Monitoring traffic

Commands used

get-br-cnt

Displays the packet statistics for a port. For a complete description, see page 52.

get-eth-cnt get-colls-cnt

Displays the Ethernet counters for a port.

Displays the collision distribution counters for a port.

get-rmon-cnt get-sdist-cnt

Displays the Ethernet RMON counters for a port.

Displays the packet size distribution counters for a port.

get-mgm-brcnt clr-cnt

Displays the statistics for the management port.

Resets the Ethernet and bridging statistics.

Use monitoring commands to determine the traffic volume from specific ports or between ports. This allows you to determine the traffic patterns of your network and adjust your network topology for maximum efficiency.

Statistics are generated for the current session. Reset counters by using the clr-cntcommand, resetting the switch, or cycling the power.

In general, keep devices that primarily talk to each other on the same segment (remember, each port is a Fast Ethernet segment). For example, if a high volume of traffic is forwarded from port 4 to port 3, determine which devices are generating traffic and move them to the same segment. This often happens when users are accessing a server on a separate segment. A change may not be efficient, however, if users from several segments all access the same server frequently.

To check traffic on a port

1Determine the port you want to check.

2Type the command:

SYS_console> get-br-cnt 3

Ethernet Switching Counters for port 3

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