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Chapter 7: Basic Switch Management

118

Pinging Network Devices

If the switch is unable to communicate with a network device, such as a

syslog server or a TFTP server, you can test for an active link between the

two devices by instructing the switch to send ICMP Echo Requests and to

listen for replies sent back from the other device. This is accomplished

with the PING command in the Privileged Exec mode.

This command instructs the switch to send ICMP Echo Requests to a

network device known by the IP address 149.122.14.15:

awplus> enable

awplus# ping 149.122.14.15

The results of the ping are displayed on the screen.

Note

To send ICMP Echo Requests, the switch must have a management

IP address. For instructions, refer to Chapter 13, “IPv4 and IPv6

Management Addresses” on page 285.

Note

The switch sends the ICMP Echo Requests from the ports of the

VLAN assigned the management IP address. The device the switch

is pinging must be a member of that VLAN or must be accessible

through routers or other Layer 3 devices.

For reference information, refer to “PING” on page 149.

Allied Telesis AT-9000/28SP User Manual

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