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Cannot Disconnect Telnet Session on S-Series

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TitleCannot Disconnect Telnet Session on S-Series
Symptoms
Disconnect command does not disconnect telnet Sessions
Environment
  • S-Series
    • Firmware 7.71.02.0005
Cause
Firmware bug documented in the release notes

SSH/Telnet Problems Corrected in 7.72.01.0021
Closing a remote telnet session to a device that is waiting on the pre-login banner
confirmation can result in that session waiting continuously for a response, thus tying up
the resources for that remote session. If this is done four times, remote access to the
device will fail as all the allocated resources are in use.
Resolution
Upgrade the firmware
Additional notes

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