
17-10 Troubleshooting operational problems
AML problems
Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999
SLFT ESDI n use: SLFT AML n
STAT CMS n use: STAT AML n
STAT ESDI n use: STAT AML n
SWCH CMS n n use: SWCH AML n n
ESDI/AML states
An ESDI/AML port may be in one of the states shown in the
following table.
MSDL/AML states
The layer 2 and layer 7 states of an MSDL/AML port are
reported separately by the STAT AML command.
Layer 2 can be disabled, released, or established. Layer 7 can
be disabled or active. Refer to the SL-1 Input/Output Guide
(NTP 553-3001-400) for a more complete description.
The messages listed in “ESDA error messages” on
page 17-11 and “CSA error messages” on page 17-12 include
additional information, where
n = AML number. See prompt ADAN in Overlay 17.
t = The system time.
x = The reason that the error code was issued.
Only a partial list of errors (those applicable to Meridian
Mail) is included here. For a complete list of possible error
State Description
Disabled The ESDI/AML port has been disabled by the
DIS ESDI/AML command.
Enabled The ESDI/AML port has been enabled, but the
link layer has not been set up by the CON
ESDI/AML command. The ESDI/AML port
must be in the enabled state to perform the
self-test.
Connected The ESDI/AML layer (LAPB protocol) is set up
(see CON ESDI/AML command) and the port
is ready to send and receive messages.
Auto Setup The ESDI/AML is attempting to set up the
LAPB layer for AML applications. This state
occurs during automatic recovery of the AML
or while the ACMS command is in progress.
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