Acer HDS AMS200 Reference Manual page 323

CLS (Close) --- FC-AL:
A CLS is sent by the L_Port. When the L_Port sends the CLS, it does not transfer the
frame and the R_RDY to the current circuit.
The CLS shows that the control of the loop is ready to be abandoned or has already been
abandoned.
MRKtx (Mark) --- FC-AL:
A MRKtx is a Primitive Signal transmitting on a Loop by a master control point to
synchronize other Nodes.
Primitive Sequences
A Primitive sequences form an ordered set and they are transferred repeatedly and
continuously while the certain condition exists. Types of the primitive sequence are
shown below.
NOS (Not Operational):
The NOS Primitive Sequence is transmitted to indicate that the Port transmitting this
Sequence has detected a Link Failure condition or is Off-line, waiting for OLS to be
received.
OLS (Off-line):
The OLS Primitive Sequence is transmitted to indicate that the port transmitting this
Sequence is:
Initiating the Link Initialization Protocol,
–
Receiving and recognizing NOS, or
–
Entering the Off-line State
–
LR (Link Reset):
The LR Primitive Sequence is transmitted by a Port to initiate the Link Reset Protocol or
to recover from a Link Time-out. Besides, the LR is possible to be sent when the N_Port
which supports the Class 1 service becomes unable to decide the connection status.
LRR (Link Reset Response):
The LRR Primitive Sequence is transmitted by a Port to indicate that it is receiving and
recognizes the LR Primitive Sequence.
LIP (Loop Initialization) --- FC-AL:
The LIP Primitive Sequence is used by an L_Port to detect if it is part of a Loop or to
recover from certain Loop errors.
LPEyx (Loop Port Enable) ---FC-AL:
The LPEyx is sent on the loop to reset the bypass circuit of the L_Port which was
bypassed before and to put the L_Port in the enabled status.
LPEfx (Loop Port Enable all) --- FC-AL:
The LPEfx Primitive Sequence is transmitted on a Loop to reset all Bypass Circuit(s) that
may have been previously set and enable all L_Port to participate on the Loop.
LPByx (Loop Port Bypass) --- FC-AL:
The LPByx Primitive Sequence is transmitted on a Loop to set the Bypass Circuit and to
bypass an L_Port.
Acer | HDS AMS200 User and Reference Guide 303