ZyXEL Communications XS3800-28 User Manual page 437

Advanced Application > ZULD Status (Stacking Mode)
Fig ure 341
The following table describes the fields in the above screen.
Table 194 Advanced Application > ZULD Status
L ABEL DESC RIPT IO N
ZULD is.... This shows whether
SLOT This field appears only in stacking mode. Click the drop-down list to choose the slot
number of the Switch in a stack.
Port This field displays the port number. In stacking mode, the first number represents the slot ID
and the second is the port number. Please note that the default stacking ports (the last
four ports of your Switch) cannot be configured. They are reserved for stacking only.
Active This field displays whether ZULD is enabled on the port or not. ZULD must be enabled to
detect an unidirectional link by monitoring OAMPDUs.
Mode This field indicates what
mode,
Ag g re ssive
sends a syslog and trap when it detects a unidirectional link.
Probe Time Probe time is the length of time that
unidirectional. When the probe time expires, and one port (either on the Switch or the
connected device) still has not received an OAMPDU, then
unidirectional.
Link State This field shows the following link states:
•
•
•
•
•
Remote Operation This field displays whether ZULD is enabled or disabled on the connected device on this
link. ZULD must be enabled on the connected device and on the port that is connecting
to the Switch.
Chapter 44 ZULD
is enabled or disabled on the Switch.
ZUL D
will do when a unidirectional link is detected. In
ZUL D
only sends a syslog and trap when it detects a unidirectional link. In
ZUL D
mode, shuts down the port (puts it into an
ZUL D
: This is an initialization state, where the port is not yet up.
L inkdo wn
: This indicates that
Pro b e ZUL D
: Traffic sent by the Switch is received by the connected device on this
Bidire c tio na l
link, and traffic from the connected device on this link is received by the Switch.
: The state of the link between the port and its connected port cannot
Unidire c tio na l
be determined either because no ZULD message was received, or one port is not
capable of sending traffic.
: The port has been shut down because its link with the connected device is
Shutdo wn
unidirectional and is in
ZUL D
XS3800-28 User's Guide
437
ErrDisa b le
waits before declaring that a link is
ZUL D
is discovering the connected device on this link.
mode.
Ag g re ssive
No rm a l
state) as well as
declares that the link is
ZUL D