Session termination reasons. All IDs must be sequential, starting from 0 — used in PCRF as an array index for transcoding.

• acct_stop_reason_unspecified (0) — reason not explicitly specified.
• acct_stop_reason_user_request (1) — explicit session termination by subscriber request or when creating a new session.
• acct_stop_reason_idle_timeout (2) — session termination due to inactivity timeout.
• acct_stop_reason_session_expired (3) — session termination due to allocated session time expiration.
• acct_stop_reason_admin_reset (4) — termination by admin request (CoA Disconnect-Request).
• acct_stop_reason_lost_service (5) — closure due to DHCP-NAK or service 9 deactivation.
• acct_stop_reason_NAS_error (6) — errors detected in the request.
• acct_stop_reason_double_secondary_key (7) — session termination with the same unique secondary key.
• acct_stop_reason_coa_reauth (8) — reauthorization using CoA.
• acct_stop_reason_callback (9) — Stop current session due to reauthorization.
• acct_stop_reason_no_auth_response (10) — no response to authorization request.
• acct_stop_reason_NAS_switch (11) — switching to another SSG.
• acct_stop_reason_CoA_Disconnect (12) — termination via CoA disconnect.
• acct_stop_reason_source_reboot (13) — fastDPI restart detected by counter value decrease [fastPCRF].
• acct_stop_reason_change_session_id (14) — sessionId change [fastPCRF].
• acct_stop_reason_transfer_session_id (15) — transferring sessionId to another IP [fastPCRF].
• acct_stop_reason_fastdpi_acct_on (16) — FastDPI sent Acct-On/Acct-Off [fastPCRF].
• acct_stop_reason_suspended (17) — session moved to "suspended" state due to lost connection with RADIUS server [fastPCRF].
• acct_stop_reason_ppp_changed_IPv6_prefix (18) — ppp Pool DHCPv6 Renew returned a different prefix.
• acct_stop_reason_ppp_missing_IPv6_prefix (19) — ppp Pool DHCPv6 Renew did not return a prefix.