z/OS Communications Server: IP Messages Volume 2 (EZB, EZD)
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EZD1265I

z/OS Communications Server: IP Messages Volume 2 (EZB, EZD)
SC27-3655-01

EZD1265I
applname CONNECTION TO ADVISOR ipaddress CLOSED DUE TO PROTOCOL ERROR

Explanation

This immediate action message is issued when the z/OS® Load Balancing Agent (Agent) closes its connection to the z/OS Load Balancing Advisor (Advisor) due to an internal protocol error. The Agent will delete this message when the Agent connects to the Advisor.

In the message text:
applname
The name of the application. The application name can be one of the following:
  • LBAGENT for the z/OS Load Balancing Agent (Agent)
  • The job name of the Agent, if it is configured for subplexing
ipaddress
The IP address of the Advisor.

System action

The Agent will take a CEEDUMP, write messages to the syslogd file, and attempt to reconnect to the Advisor. The Agent will attempt to reconnect to the Advisor until the Agent connects with the Advisor or the Agent is stopped.

Operator response

Save the dump, syslogd file, and packet trace (if active). The dump data set is specified in the CEEDUMP DD statement in the Agent's start procedure. Contact the system programmer. If the problem persists, stop the Agent.

System programmer response

Examine the syslogd files for the Advisor and Agent.

If the debug level includes Message level messages, the syslogd file will show the data that each application sent or received. If the data that was sent by one application was the same data received by the corresponding application, contact IBM® software support services.

If the data that was sent was not the same data that was received, this might indicate that network integrity has been compromised.

If the packet trace was active, examine the trace for the data that was sent and received.

If the packet trace is not active, try to recreate the problem with packet trace active. See z/OS Communications Server: IP Diagnosis Guide for information about the packet trace.

Module

lczap.c

Procedure name

zap_protocol_error

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