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Cisco Bug: CSCtc99962 - Setting a socket to blocking IO does not work

Last Modified

May 04, 2012

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(24)T2 15.0(1)S

Description (partial)

Symptom:

When an application set a socket to NBIO from its default blocking mode and again
it is set to blocking IO mode, TCP read/write operation still happens as per NBIO mode.

Conditions:

In default blocking mode, the behaviour is as expected.
Only when the socket is changed from default Blocking IO to NBIO and then again set to blocking IO.
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