IV59882: PACKET TRANSMISSION IS DELAYED IN FC5768 FAMILY ADAPTERS. APPLIES TO AIX 6100-08

APAR status

• Closed as program error.

Error description

• When packet transmission and adapter status query such as
  netstat -v or
  entstat are running at the same time, the packet to be
  transmitted will
  be delayed until next transmission. It may cause initial
  connection
  error of the application which has a short timeout value
  for connect.
  

Local fix

• 1. Do not run netstat -v or entstat when connect is being
  called.
  2. Send packets repeatedly from the adapter with shorter
  interval than application timeout.
  
  For example,
  
  while true; do
    ping -c 1 <target address>
    sleep 1
  done
  

Problem summary

• When packet transmission and adapter status query such as
  netstat -v or entstat are running at the same time, the packet
  to be transmitted will be delayed until next transmission.
  

Problem conclusion

• Driver is fixed to start send timer.
  

Temporary fix

Comments

• 6100-08 - use AIX APAR IV59882
  6100-09 - use AIX APAR IV61671
  6100-09 - use AIX APAR IV61671
  7100-02 - use AIX APAR IV64214
  7100-03 - use AIX APAR IV62023
  7100-04 - use AIX APAR IV62074
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IV61671 IV62023 IV62074 IV64214

Fix information

• Fixed component name

  VIRTUAL I/O SER

• Fixed component ID

  5765G3400

Applicable component levels