User's Manual

Table Of Contents
Users Manual of SGS-5240 Series Managed Switch
175
Operation State Shows the UDLD operational state (Disabled, Link down, Link up, Advertisement, Detection, Disabled port,
Advertisement - Single neighbor, Advertisement - Multiple neighbors)
Port State Shows the UDLD port state (Unknown, Bidirectional, Unidirectional, Transmit-to-receive loop, Mismatch with
neighbor state reported, Neighbor's echo is empty) The state is Unknown if the link is down or not connected to a
UDLD-capable device. The state is Bidirectional if the link has a normal two-way connection to a UDLD-capable device. All
other states indicate mis-wiring.
Message Interval The interval between UDLD probe messages used for the indicated operational state.
Detection Interval The period the switch remains in detection state after discovering a neighbor.
4.2.19.3 Neighbor Info
Switch Management > UDLD >Neighbor Info page is used to show UDLD neighbor information, including neighbor state,
expiration time, and protocol intervals.
Port – Port identifier. (Range: 1-28/52)
Entry – Table entry number uniquely identifying the neighbor device discovered by UDLD on a port interface.
Device ID Device identifier of neighbor sending the UDLD packet.
Port ID The physical port the UDLD packet is sent from.
Device Name The device name of this neighbor.
Neighbor State Link status of neighbor device (Values: unknown, neighborsEchoIsEmpty, bidirectional,
mismatchWithneighborStateReported, unidirectional).
Expire – The amount of time remaining before this entry will expire.
Message Interval The interval between UDLD probe messages for ports in advertisement phase.
Detection Interval The period the switch remains in detection state after discovering a neighbor.