[NeMo-DDoS-List] FW: [Geant NeMo] #245981 END CRIT: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Monday, April 27, 2026 11:35:11 PM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #245981 END CRIT: IUCC (AS378) - "4 alerts" [Customer] [IUCC] [Email_Analysis]

Observed <= 0 alerts, closing.Alert closed.

Alert ID: 245981
Status: Closed
Severity: Critical

Start Time: 2026-04-27 20:20:54
End Time: 2026-04-27 20:35:00
Start Time (Europe/Berlin): 2026-04-27 22:20:54
End Time (Europe/Berlin): 2026-04-27 22:35:00
Duration: 15 min

First Event Seen: 2026-04-27 20:18:00
Last Event Seen: 2026-04-27 20:24:00
Event Count: 28

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 4 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          28

Child Alerts:
  Alert ID                    Description
--------------------------------------------------------------
245978      High SYN packet rate.
245979      High TCP packet rate.
245980      High packet rate.
245982      Abnormal ratio of SYN packets to ACK packets.


Further Details:
https://secondary.nemo.geant.org/alerts/details/245981/

All times expressed in UTC.