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Cisco Bug: CSCuj23995 - ISG: session idle timer checks traffic in the wrong direction

Last Modified

Jan 31, 2017

Products (13)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
  • Cisco ME 3600X-24CX-M Switch
  • Cisco ASR 901-4C-F-D Router
  • Cisco ME 3600X-24FS-M Switch
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Known Affected Releases


Description (partial)

When checking the subscriber session detailed for a subscriber for which the PC has been removed from the network, it appears there is still "Out" traffic being send.
"Out" traffic is normally considered traffic send from the subscriber to the Internet. Since the PC is removed, no traffic can be send anymore but the counter still increases.
The direct problem is that the session idle timer never kicks in as it is being reset due to the detected traffic.

Idle timer is being configured for a session and the subscriber is removed from the network
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