ACC Error Guide

ZX25D System Messages
CLASS: Normal 400-499
Chapter 12248
Action: Correct either the DTE or DCE’s X.25 subscription
parameters.
zx25d 420 Inbound call arrived on one-way outgoing SVC (LCN <#>)
for Link ZLU <#>. The inbound call has been cleared.
Explanation: An Incoming CALL packet has arrived on a Logical
Channel Number that the subscription parameters
have specified as a one-way outgoing SVC. That is, the
Logical Channel used in the CALL packet is only
allowed to place an outbound CALL request. The
inbound call has automatically been cleared. This is
due to a mis-match in the subscription parameters
configured for the DTE and DCE. These parameters
must agree exactly.
Action: Correct either the DTE or DCE’s X.25 subscription
parameters.
zx25d 421 No available (idle) ZLUs for inbound call. The inbound call
has been cleared.
Explanation: An Incoming CALL packet has arrived but there are no
SVC ZLUs available to handle it. For an SVC to be
available, it must be defined, enabled, configured to
accept inbound calls and must be in the “idle” state. In
addition, the SVC may not be available if it has been
configured to only accept calls from a specific X.121
address. The inbound call has automatically been
cleared with an appropriate diagnostic code.
Action: No action is necessary. This is an informational
message, however, you may want to increase the
number of SVCs for inbound call in your X.25
subscription.
zx25d 422 Inbound call on LCN <#> specified Restricted Fast-Select.
Unable to accept call on link ZLU <#>; call cleared.
Explanation: An Incoming CALL packet has arrived that specified
the facility Restricted Fast-Select on a ZLU that is
configured to automatically accept all inbound calls.
This facility does not allow the call to be accepted. The
inbound call has automatically been cleared as
required by this facility.