Dell POWEREDGE M1000E User Manual
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Cisco Catalyst Blade Switch 3120 for HP Command Reference
OL-12248-03
Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands
show udld
describes the fields in this display.
Table 2-35
show udld Field Descriptions
Field
Description
Interface
The interface on the local device configured for UDLD.
Port enable administrative
configuration setting
How UDLD is configured on the port. If UDLD is enabled or
disabled, the port enable configuration setting is the same as the
operational enable state. Otherwise, the enable operational setting
depends on the global enable setting.
Port enable operational state
Operational state that shows whether UDLD is actually running on
this port.
Current bidirectional state
The bidirectional state of the link. An unknown state appears if the
link is down or if it is connected to an UDLD-incapable device. A
bidirectional state appears if the link is a normal two-way connection
to a UDLD-capable device. All other values mean miswiring.
Current operational state
The current phase of the UDLD state machine. For a normal
bidirectional link, the state machine is most often in the
Advertisement phase.
Message interval
How often advertisement messages are sent from the local device.
Measured in seconds.
Time out interval
The time period, in seconds, that UDLD waits for echoes from a
neighbor device during the detection window.
Entry 1
Information from the first cache entry, which contains a copy of echo
information received from the neighbor.
Expiration time
The amount of time in seconds remaining before this cache entry is
aged out.
Device ID
The neighbor device identification.
Current neighbor state
The neighbor’s current state. If both the local and neighbor devices
are running UDLD normally, the neighbor state and local state
should be bidirectional. If the link is down or the neighbor is not
UDLD-capable, no cache entries appear.
Device name
The device name or the system serial number of the neighbor. The
system serial number appears if the device name is not set or is set to
the default (Switch).
Port ID
The neighbor port ID enabled for UDLD.
Neighbor echo 1 device
The device name of the neighbors’ neighbor from which the echo
originated.
Neighbor echo 1 port
The port number ID of the neighbor from which the echo originated.
Message interval
The rate, in seconds, at which the neighbor is sending advertisement
messages.
CDP device name
The CDP device name or the system serial number. The system serial
number appears if the device name is not set or is set to the default
(Switch).