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ACC Error Guide > Chapter 13 ZX25D System Messages

CLASS: Warning 500-599

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zx25d 500 The X.25 subsystem is not up! Unable to process msg.

Explanation:

An X.25 related event message or a request from an application program (as a result of a call to one of the zx25...() routines) has arrived on the X.25 Protocol driver's event handler, however, the X.25 subsystem is currently shutdown or has not been initialized. Therefore, the event message has been discarded.

Action:

No action is necessary. This is an informational message. However, you may want to make sure an entry exists in the /opt/acc/cfg/zmasterd_list file to schedule the zx25d_init program.

zx25d 501 Message received from an illegal X.25 link ZLU (<#>)!

Explanation:

An event message arrived on the X.25 driver's inbound event handler but the event did not correspond to any of the known X.25 link ZLUs. Most likely a user application has inadvertently used the wrong program ZLU when setting up a receiver for status and/or data messages.

Action:

No action is necessary. This is an informational message.

zx25d 502 Unknown msg type (<#>) received from ZLU <#>!

Explanation:

The ZCOM message header returned to the X.25 protocol driver contained a message type value (in the mid.mstype field) that is unexpected or unknown. Most likely a user application has inadvertently sent a message to the wrong ZCOM program ZLU.

Action:

No action is necessary. This is an informational message.

zx25d 503 No Logical Channel Number configured for PVC ZLU <#>. An LCN will be dynamically selected for this PVC.

Explanation:

During the initialization of an X.25 link, the X.25 protocol driver detected a PVC ZLU entry that was incorrectly configured and did not contain a Logical Channel Number in the Poll word. The X.25 driver will automatically assign an unused LCN to this PVC ZLU (if available). Note that the ZCOM utility zmntr can be used to examine the LCN configured for each PVC ZLU.

Action:

No action is necessary. This is an informational message. However, it is recommended that you correct the configuration for this PVC.

zx25d 504 Duplicate LCN (<#>) configured for PVC ZLU <#>. A new LCN will be dynamically selected for this PVC.

Explanation:

During the initialization of an X.25 link, the X.25 protocol driver detected a PVC ZLU entry that was incorrectly configured and contained the same Logical Channel Number in the Poll word as another PVC ZLU on the same X.25 link. The X.25 driver will automatically assign an unused LCN to the indicated PVC ZLU (if available). Note that the ZCOM utility zmntr can be used to examine the LCN configured for each PVC ZLU.

Action:

No action is necessary. This is an informational message. However, it is recommended that you correct the configuration for this PVC.

zx25d 505 There are more PVCs configured (<#>) than subscribed to (<#>) for the X.25 Link ZLU <#>.

Explanation:

During the initialization of an X.25 link, the X.25 protocol driver detected that there were more PVC ZLU terminal entries defined than were specified in the X.25 subscription parameters. That is, the value of the last_pvc parameter is less than the total number of PVC ZLUs defined. The PVC ZLUs definitions that exceed the last_pvc parameter value will not be available for use.

Action:

No action is necessary. This is an informational message. However, it is recommended that you correct the TTGEN configuration file.

zx25d 506 There are more two-way SVCs configured (<#>) than subscribed to (<#>) for the X.25 Link ZLU <#>.

Explanation:

During the initialization of an X.25 link, the X.25 protocol driver detected that there were more two-way (x25.svc.io) SVC ZLU terminal entries defined than were specified in the X.25 subscription parameters. That is, the value of the (last_svc - first_svc) is less than the total number of two-way SVC ZLUs defined. Some of the SVC ZLUs may not be usable during run-time operation.

Action:

No action is necessary. This is an informational message. However, it is recommended that you correct the TTGEN configuration file.

zx25d 507 There are more one-way incoming SVCs configured (<#>) than subscribed to (<#>) for the X.25 Link ZLU <#>.

Explanation:

During the initialization of an X.25 link, the X.25 protocol driver detected that there were more one-way incoming (x25.svc.in) SVC ZLU terminal entries defined than were specified in the X.25 subscription parameters. That is, the value of the (last_insvc - first_insvc) is less than the total number of one-way incoming SVC ZLUs defined. Some of the SVC ZLUs may not be usable during run-time operation.

Action:

No action is necessary. This is an informational message. However, it is recommended that you correct the TTGEN configuration file.

zx25d 508 There are more one-way outgoing SVCs configured (<#>) than subscribed to (<#>) for the X.25 Link ZLU <#>.

Explanation:

During the initialization of an X.25 link, the X.25 protocol driver detected that there were more one-way outgoing (x25.svc.out) SVC ZLU terminal entries defined than were specified in the X.25 subscription parameters. That is, the value of the (last_outsvc - first_outsvc) is less than the total number of one-way outgoing SVC ZLUs defined. Some of the SVC ZLUs may not be usable during run-time operation.

Action:

No action is necessary. This is an informational message. However, it is recommended that you correct the TTGEN configuration file.

zx25d 509 Link <#>: Call collision on VC ZLU <#> (LCN <#>) occurred. The inbound call has been ignored. Mux= <#>, Port= <#>, Subchannel= <#>.

Explanation:

An Incoming CALL packet arrived with the same LCN as an outbound CALL Request just sent. This condition is known as a call collision and as required by the ITU-T specification, the inbound call has been discarded (ignored). This message is only logged if the X.25 link is a DTE.

Action:

No action is necessary. This is an informational message.

zx25d 510 Link <#>: Call collision on VC ZLU <#> (LCN <#>) occurred. The outbound call has been lost. Mux= <#>, Port= <#>, Subchannel= <#>.

Explanation:

An Incoming CALL packet arrived with the same LCN as an outbound CALL Request just sent. This condition is known as a call collision and as required by the ITU-T specification, the outbound call has been discarded (ignored) and the Incoming CALL is being processed normally. This message is only logged if the X.25 link is a DCE.

Action:

No action is necessary. This is an informational message.

zx25d 511 Link <#>: Call packet received on PVC ZLU <#> (LCN <#>)! The PVC has been reset. Check your subscription. Mux= <#>, Port= <#>, Subchannel= <#>.

Explanation:

An Incoming CALL packet arrived with a Logical Channel Number (LCN) that the X.25 link subscription parameters have configured as a PVC LCN. A Reset Request has automatically been generated in response. This indicates that the local system or DXE is incorrectly configured. Both sides of the link must have matching X.25 subscription parameters.

Action:

Correct the X.25 subscription parameters, either locally or at the remote DXE.

zx25d 512 Link <#>: Call received on SVC ZLU <#> (LCN <#>) in improper state (<state string>). The inbound call has been ignored.

Explanation:

An Incoming CALL packet arrived on an LCN whose current state indicates that this packet is not valid. For example, if an Incoming CALL arrived and was followed by a second Incoming CALL with the same LCN value, the second Incoming CALL packet would be invalid. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are:

Unusable=

The ZLU/LCN is not available.

Disabled=

The ZLU/LCN is currently disabled.

Enabled=

The ZLU/LCN is enabled but not usable (Link is down).

Idle=

The ZLU/LCN is idle (e.g. no call in progress).

Clear Req=

A Clear Request has been sent on this ZLU/LCN.

Clear Ind=

A Clear Indication has been received on this ZLU/LCN.

Call Req=

A Call Request has been sent on this ZLU/LCN.

Call Ind=

An Incoming Call has been received on this ZLU/LCN.

Call Collision=

A Call Collision has occurred on this ZLU/LCN.

Xfer Read=

Ready to transfer data on this LCN.

Reset Req=

A Reset Request has been sent on this ZLU/LCN.

Reset Ind=

A Reset Indication has been received on this ZLU/LCN.

Abort=

Error recovery for inbound packet on unassigned LCN.

Action:

No action is necessary. This is an informational message.

zx25d 513 Link <#>: Call confirm received on Idle LCN <#>. A clear has been issued on the SVC.

Explanation:

An inbound Call Connected packet arrived on an LCN that had not sent a Call Request packet. That is, this was a spurious packet on a Logical Channel that was not currently in use. A Clear Request has been automatically sent in response as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 514 Link <#>: Invalid packet received on PVC ZLU <#> (LCN <#>)! The PVC has been reset. Packet type = <#>.

Explanation:

An X.25 level 3 packet type arrived on a PVC ZLU that is not allowed for PVCs. Usually this is a packet related to call establishment. A Reset Request has automatically been sent in response as required by ITU-T. Note: This may be due to an incorrect/mis-matched X.25 subscription configuration between the DXE and the local X.25 link. The packet types are as follows:

type 35 = Call Request
type 36 = Call Connected
type 37 = Clear Indication
type 38 = Clear Confirmation

Action:

No action is necessary. This is an informational message.

zx25d 515 Link <#>: X.25 Timeout occurred during restart exchange. Mux= <#>, Port= <#>, Subchannel= <#>.

Explanation:

A Restart Request was transmitted, however, the remote DXE did not respond with a Restart Confirmation or Restart Indication packet within the time allowed (timer T10/T20). Most likely, the remote DXE is currently powered down or has not been enabled/initialized. The X.25 protocol driver will continue to retry the Restart Request until disabled or the remote DXE responds.

Action:

No action is necessary. This is an informational message.

zx25d 516 Link <#>: Abnormal event (<#>) for L2 state (<#>)! Event has been ignored!

Explanation:

The X.25 protocol driver received an event type that is abnormal for the current state of the X.25 link. Most likely this is due to a minor defect in the X.25 driver.

Action:

In most cases, this message can be ignored. However, if this message occurs frequently or abnormal behavior is observed, you should contact your HP support personnel.

zx25d 517 Link <#>: VC ZLU <#> enable failed.

Explanation:

The X.25 driver received an unsolicited status message indicating that an application enable of an X.25 VC ZLU has failed. Most likely, this is due to an internal defect in the X.25 MUX card firmware.

Action:

In most cases, this message can be ignored. However, if this message occurs frequently or abnormal behavior is observed, you should contact your HP support personnel.

zx25d 518 Link <#>: Buffer shortage on port. Mux= <#>, Port= <#>, Subchannel= <#>.

Explanation:

The MUX firmware was unable to find a free buffer to hold an inbound X.25 protocol packet or could not find a free buffer to transmit a protocol packet (e.g. RR). The packet has been lost. This may cause severe operational problems on the X.25 link. This problem can occur if one or more of the link option words has the IRX and/or NTX bits set to zero, or the Port-Limit was set too large, or an application is sending a very large contiguous message in a single zsend call.

Action:

Make sure that both the IRX and NTX bits are set in all X.25 link option words. If the Port-Limit parameter value is larger than 20,000, you might try slightly reducing this value. Make sure that applications break large messages into smaller chunks (not to exceed 4096 bytes) and transmit the smaller chunks using the M-bit as appropriate.

zx25d 519 Link <#>: zsetql() failed with error <#>!

Explanation:

The zsetql routine to set the queue limits for the X.25 link ZLU has unexpectedly failed. This error is ignored by the X.25 driver and the X.25 link can be used in a normal fashion.

Action:

Examine the specific reason for the failure and take corrective action if possible. In most other cases, this error can be safely ignored. However, if the message "transmit queue limit exceeded" is seen for an X.25 link ZLU, then a serious error has occurred. If the problem persists and you are unable to correct it, contact your HP support representative.

zx25d 520 Link <#>: Call accept received on SVC ZLU <#> (LCN <#>) in improper state (<state string>).

Explanation:

An inbound Call Connected packet arrived on an LCN whose current state indicates that this packet is not valid. For example, if an Incoming CALL arrived and was followed by a Call Connected packet with the same LCN value, the Call Connected packet would be invalid. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are described in message 512.

Action:

No action is necessary. This is an informational message.

zx25d 521 Link <#>: Clear confirm received on SVC ZLU <#> (LCN <#>) in improper state (<state string>).

Explanation:

An inbound Clear Confirmation packet arrived on an LCN whose current state indicates that this packet type is invalid. This would be true any time a Clear Confirmation packet arrived when a Clear Request has not been sent. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are described in message 512.

Action:

No action is necessary. This is an informational message.

zx25d 522 Link <#>: Reset received on SVC ZLU <#> (LCN <#>) in improper state (<state string>).

Explanation:

An inbound Reset Indication packet arrived on an LCN whose current state indicates that this packet is not valid. For example, if an Incoming CALL arrived and was followed by a Reset Indication packet with the same LCN value, the Reset Indication packet would be invalid. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are described in message 512.

Action:

No action is necessary. This is an informational message.

zx25d 523 Link <#>: Reset confirm received on SVC ZLU <#> (LCN <#>) in improper state (<state string>).

Explanation:

An inbound Reset Confirmation packet arrived on an LCN whose current state indicates that this packet type is invalid. This would be true any time a Reset Confirmation packet arrived when a Reset Request has not been sent. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are described in message 512.

Action:

No action is necessary. This is an informational message.

zx25d 524 Link <#>: Illegal packet received! Diagnostic = <#>. Packet = 0x<#> Pkt length = <#>.

Explanation:

An illegal X.25 level 3 protocol packet has been received on the indicated link ZLU. That is, a protocol packet whose type is unknown, unsupported, or contains a format error, or has an illegal Logical Channel Number. When this occurs, a ITU-T standard diagnostic code is displayed indicating the reason the packet is illegal, the first four bytes of the input buffer is dumped (in hex), and the total length of the packet is displayed.

Action:

No action is necessary. This is an informational message.

zx25d 525 Link <#>: Facilities data too long (<#> bytes) on inbound call for SVC zlu <#> (LCN=<#>). Call cleared!

Explanation:

An Incoming CALL packet arrived with facilities data that exceeded the maximum permissible size of 109 bytes. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 526 Link <#>: Call user data too long (<#> bytes) on inbound call for SVC zlu <#> (LCN=<#>). Call cleared!

Explanation:

An Incoming CALL packet arrived with Call User data that exceeded the maximum permissible size of 128 bytes. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 527 Link <#>: Call user data too long (<#> bytes) on inbound call for SVC zlu <#> (LCN=<#>). No Fast-Select, call cleared!

Explanation:

An Incoming CALL packet arrived with Call User data that exceeded the maximum permissible size of 16 bytes for calls without the Fast-Select facility. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 528 Link <#>: Outbound call on zlu <#> (LCN=<#>) specified Restricted Fast-Select. Call accept not allowed; call cleared.

Explanation:

An inbound Call Connected packet arrived on a VC whose outbound Call Request specified the facility Restricted Fast-Select. When this facility has been specified, it is illegal for that call to be connected. That is, it is mandatory for a Clear Request to be transmitted in response to this type of inbound call. A Clear Request has been sent automatically as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 529 Link <#>: Facilities data too long (<#> bytes) in call accept for SVC zlu <#> (LCN=<#>). Call cleared!

Explanation:

An inbound Call Connected packet arrived with facilities data that exceeded the maximum permissible size of 109 bytes. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 530 Link <#>: Call user data too long (<#> bytes) in call connected for SVC zlu <#> (LCN=<#>). Call cleared!

Explanation:

An inbound Call Connected packet arrived with Call User data that exceeded the maximum permissible size of 128 bytes. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 531 Link <#>: Call user data not allowed in call connected packet for SVC zlu <#> (LCN=<#>). Call cleared!

Explanation:

An inbound Call Connected packet arrived that specified Call User data. However, the original Call Request did not specify the facility Fast-Select which prohibits the DXE from sending Call User data in the Call Connected packet. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 532 Link <#>: Facilities data too long (<#> bytes) in clear packet for SVC zlu <#> (LCN=<#>). Clear req issued.

Explanation:

An inbound Clear Indication packet arrived with facilities data that exceeded the maximum permissible size of 109 bytes. A Clear Request has automatically been issued as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 533 Link <#>: Call user data too long (<#> bytes) in clear packet for SVC zlu <#> (LCN=<#>).

Explanation:

An inbound Clear Indication packet arrived with Call User data that exceeded the maximum permissible size of 128 bytes. A Clear Request has automatically been issued as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 534 Link <#>: Call user data not allowed in clear packet for SVC zlu <#> (LCN=<#>). Clear request issued.

Explanation:

An inbound Clear Indication packet arrived that specified Call User data. However, the original Call Request did not specify the facility Fast-Select which prohibits the DXE from sending Call User data in the Clear Indication packet. The call has been automatically cleared as required by ITU-T.

Action:

No action is necessary. This is an informational message.

zx25d 535 Link <#>: Interrupt pkt on SVC ZLU <#> (LCN <#>) in improper state (<state string>). Reset or Clear has been issued.

Explanation:

An inbound Interrupt packet arrived on an LCN whose current state indicates that this packet type is invalid. For example, if an Incoming CALL arrived and was followed by a Interrupt packet with the same LCN value, the Interrupt packet would be invalid. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are described in message 512.

Action:

No action is necessary. This is an informational message.

zx25d 536 Link <#>: Interrupt confirm pkt on SVC ZLU <#> (LCN <#>) in improper state (<state string>). Reset or Clear has been issued.

Explanation:

An inbound Interrupt Confirmation packet arrived on an LCN whose current state indicates that this packet type is invalid. This would be true any time an Interrupt Confirmation packet arrived when an Interrupt packet had not been sent. The <state string> parameter indicates the current state that the LCN is in. Possible state string values are described in message 512.

Action:

No action is necessary. This is an informational message.

zx25d 537 Link <#>: Invalid Option word for SVC ZLU <#>. Option word indicated calls can not be sent or received. ZLU will be set to an SVC.IO in the option word.

Explanation:

The option word for a configured VC indicates where the VC is an SVC or a PVC. For SVCs, it also indicates if the SVC can place outbound calls and/or receive inbound calls. This message indicates that the VC was configured as an SVC that is not allowed to either receive or send calls. This is illegal. The SVC has automatically been reconfigured to allow both inbound and outbound calls.

Action:

Correct the configuration of the virtual circuit ZLU.

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