EZZ8664I

Explanation
 The TCP send queue for the specified connection
is constrained because  excessive or old data is accumulating on the
queue. 
 In the message text:  date
The date when the queue became constrained. 
time 
The time when the queue became constrained. 
connid 
The ID of the connection that is associated with the queue that
is constrained.
jobname  
The job name of the connection that is associated with the queue
that is constrained.
lipaddr  
The local IP address of the connection that is associated with
the queue that is constrained.
lport  
The  local port of the connection that is associated with the
queue that is constrained.
ripaddr  
The  remote IP address of the connection that is associated with
the queue that is constrained. 
rport  
The  remote port of the connection that is associated with the
queue that is constrained.
correlator 
The correlator for a constrained queue condition. The correlator
can be used to locate the entry and exit log messages for an event
that was caused by a constrained TCP queue. Message EZZ8665I is issued,
with the same correlator value, when the queue exits the constrained
state.
probeid 
The unique identifier of the probe detection point. See the intrusion detection services probeids  in z/OS Communications Server: IP and SNA Codes for a description of the IDS probe IDs.
sensorhostname
The fully qualified host name of the IDS sensor.
trigger
The condition that triggered the queue to become constrained.
This field is one of the following values: DataAge
The constraint was triggered because data remained on the send
queue for at least 60 seconds.
BytesQueued
The constraint was triggered because a given amount of data remained
on the send queue for at least 30 seconds. This amount is configured
in IDS policy using one of four abstract queue sizes.

dataage
The age in seconds of the oldest data on the send queue when the
queue became constrained.
bytesqueued
The number of bytes queued on the send queue when the queue became
constrained.
queuesize
The configured abstract queue length for the TCP Queue Size IDS
attack type. Possible values are: VS - very short
S - short
L - long
VL - very long

System action
 Processing continues

Operator response
 Issue the Netstat ALL/-A command
to display detailed information about the  specified connection, including
the send buffer size, the size of the data  queued on the send queue,
and the date and time of the oldest data on the send  queue.  See
the Netstat ALL/-A report  in z/OS Communications Server: IP System Administrator's
Commands for information about the Netstat
ALL/-A command.
 Determine why the remote application
is not receiving the data being sent by  the local application, or
is not receiving the data at a sufficient rate to  avoid the accumulation
of excessive or old data on the send queue.  Take  appropriate steps
to cause the remote application to read the accumulated  data.  If
necessary, close the connection in order to free the storage that
is  being held on the queue.

System programmer response
 No action is needed.

User response
 Not applicable.

Problem determination
 See the operator response.

Source
 z/OS® Communications
Server TCP/IP: TRMD

Module
 EZATRMD

Routing code
 *

Descriptor code
 *

Automation
 This message is written to syslog.  This message
is a good candidate for automation. Automation can alert you to when
the TCP send queue for a  connection exits a constrained state.  Message
EZZ8665I is issued, with the same correlator value, when the queue
exits the constrained state.

Example
  EZZ8664I TRMD TCP send queue constrained entry logged: 09/09/2008 17:11:28.55 , connid= 00000125 , 
         jobname= USER15 , lipaddr= 4.4.4.4 , lport= 1165 , ripaddr= 7.7.7.7 , rport= 5000 , 
         correlator= 141 , probeid= 01000003 , sensorhostname= HOST1.COMPANYA.COM ,
         trigger= DataAge , dataage= 60 , bytesqueued= 576 , queuesize= S