Management and Configuration Guide K/KA/KB.15.15

This command clears the packets sent, packets received, and transitions counters in the show
link keepalive statistics display.
Configuring UFD
Syntax
[no] uplink-failure-detection
Globally enables UFD.
The no form of the command globally disables UFD.
Syntax
[no] uplink-failure-detection track track-id links-to-monitor [[lacp-key]
| [<port-list>]]
links-to-disable [[lacp-key] | [<port-list>]]
Configures ports as LtM ports and LtD ports for the specified track. Trunk interfaces are also
configurable. The no form of the command removes any track data associated with the specified
track.
track track-id Range is 0–63.
links-to-monitor
[lacp-key|<port-list>]
Specifies the lacp key or port list to monitor.
links-to-disable
[lacp-key|<port-list>]
Specifies the lacp key or port list to disable.
About viewing port status and configuring port parameters
Connecting transceivers to fixed-configuration devices
If the switch either fails to show a link between an installed transceiver and another device or
demonstrates errors or other unexpected behavior on the link, check the port configuration on both
devices for a speed and/or duplex (mode) mismatch.
• To check the mode setting for a port on the switch, use either the Port Status screen in the
menu interface or show interfaces brief in the CLI.
• To display information about the transceivers installed on a switch, enter the show tech
receivers command in the CLI.
Table 3 Status and parameters for each port type
DescriptionStatus or parameter
Yes (default): The port is ready for a network connection.Enabled
No: The port will not operate, even if properly connected in a network. Use this setting,
for example, if the port needs to be shut down for diagnostic purposes or while you are
making topology changes.
Up: The port senses a link beat.Status (read-only)
Down: The port is not enabled, has no cables connected, or is experiencing a network
error. For troubleshooting information, see the Installation and Getting Started Guide
you received with the switch.
The port's speed and duplex (data transfer operation) setting.Mode
Configuring UFD 101