Port Management
UDLD
Cisco Sx350, SG350X, SG350XG, Sx550X & SG550XG Series Managed Switches, Firmware Release 2.2.5.x 162
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UDLD Neighbors
To view all devices connected to the local device, click Port Management > UDLD > UDLD
Neighbors.
The following fields are displayed for all UDLD-enabled ports.
• Interface Name—Name of the local UDLD-enabled port.
• Neighbor Information:
- Device ID—ID of the remote device.
- Device MAC—MAC address of the remote device.
- Device Name—Name of the remote device.
- Port ID—Name of the remote port.
• State—State of the link between the local and neighboring device on the local port.
The following values are possible:
- Detection—The latest UDLD state of the port is in the process of being
determined. Expiration time has not yet expired since the last determination (if
there was one), or since UDLD began running on the port, so that the state is not
yet determined.
- Bidirectional—Traffic sent by the local device is received by its neighbor, and
traffic from the neighbor is received by the local device.
- Undetermined—The state of the link between the port and its connected port
cannot be determined either because no UDLD message was received or the
UDLD message did not contain the local device ID in it.
- Disabled—UDLD has been disabled on this port.
- Shutdown—The port has been shut down because its link with the connected
device is undetermined in aggressive mode.
• Neighbor Expiration Time (Sec.)—Displays the time that must pass before the
device attempts to determine the port UDLD status. This is three times the Message
Time.
• Neighbor Message Time (Sec.)—Displays the time between UDLD messages.
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