Displaying network interface information

Commands for displaying network interface statistics

Data ONTAP provides several commands that you can use to display statistics about network interface status and performance. The following table lists the commands and key information they display.

Command	Information displayed
`ifconfig -a`	interface status (up or down) configuration parameters
`ifstat`	packets sent and received collisions and other errors negotiated media type settings between filer interfaces and link partners
`netstat`	active sockets for each protocol buffer pool usage (mbufs) protocol-specific statistics for all protocols or a single protocol cumulative or continuous packet traffic for all interfaces or a single interface routing tables; for more information, see Displaying the routing table and default route information.

For more information, see the manual pages for these commands.

You can also use FilerView to display selected interface and routing information. See Displaying interface information with FilerView for more information.

About the ifstat command

The ifstat command displays statistics maintained by the networking code, network adapter, and the network driver. The statistics displayed are gathered from the time of the last reboot or from the last time you cleared them.

Note
If you use the ifstat command on a filer that is part of a cluster, the resulting information pertains only to the filer on which the command was run. The information does not include statistics for the cluster partner.

The output of the ifstat command might contain many kinds of information, because different types of interfaces -- for example, Ethernet, Gigabit Ethernet, FDDI, and ATM -- generate different types of statistics. For the detailed statistics displayed for each network interface, see Appendix A, Network Interface Statistics.

Displaying interface information with FilerView

The Network Report in FilerView presents selected network interface statistics and routing information. It provides the information you would get by running all the following commands:

netstat -i
routed status
netstat -nr

To display the Network Report, complete the following step.

Step	Action
1	In FilerView, click Network in the list on the left.
2	In the list under Network, click Report.