CR: Enable RADIUS Accounting Interim Updates on 9800 WLC

Enable RADIUS accounting interim updates on WLC wireless policy profiles so ISE DataConnect reports contain packet/byte counters for wireless sessions. Without this, wireless sessions show 0 packets/bytes because the WLC only sends Start and Stop records — no interim updates during the session.

While testing netapi ise dc query --file active-sessions, wireless sessions on the 9800 WLC returned input_packets: 0, output_packets: 0, total_mb: 0 despite active traffic. Wired sessions on the 3560CX showed correct counters (4.8TB, 69M packets). Root cause: accounting-interim was not enabled on the wireless policy profiles.

Change successful: [x] Yes
Unexpected outcomes: Wireless clients reconnected within 3 seconds. No authentication failures.
Lessons learned: 9800 WLC requires shutdown before modifying accounting-interim. Command takes no interval argument — the interval is determined by the RADIUS server or defaults to the WLC’s internal setting.