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TCP ESTABLISHED sockets are staying opened too long after sessions time out

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Information

 
TitleTCP ESTABLISHED sockets are staying opened too long after sessions time out
Symptoms
  • TCP ESTABLISHED sockets are staying opened too long after sessions time out
  • High amounts of TCP retransmits 
Environment
  • ExtremeWireless
  • Firmware 10.11.03.0004
  • TCP
  • Sockets
Cause
When a session gets created, the egress vlan can be different than the one after the client is authenticated. Some TCP flows with same mac address can be classified as host traffic and client traffic.
Resolution
Resolved in code 10.31.02

Release Note:
wns0017221 - Addressed TCP connection sessions still showing ESTABLISHED by purging MU and
HOST tables after session timeout.
Additional notes

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