[NeMo-DDoS-List] FW: [Geant NeMo] #238592 UPD WARN: IUCC (AS378) - "4 alerts" [Email_Analysis] [IUCC] [Customer]

[Hank Nussbacher]

________________________________________
From: nemo-ddos at host.geant.org <nemo-ddos at host.geant.org>
Sent: Saturday, March 21, 2026 11:55:06 PM (UTC+02:00) Jerusalem
To: soc at geant.org
Subject: [Geant NeMo] #238592 UPD WARN: IUCC (AS378) - "4 alerts" [Email_Analysis] [IUCC] [Customer]

Aggregated 4 alerts. Upgraded to severity Warning.

Alert ID: 238592
Status: Open
Severity: Warning

Start Time: 2026-03-21 21:53:50
End Time: ongoing
Start Time (Europe/Berlin): 2026-03-21 22:53:50
End Time (Europe/Berlin): ongoing
Duration: 2 min

First Event Seen: 2026-03-21 21:50:00
Last Event Seen: 2026-03-21 21:53:00
Event Count: 10

Trigger: Multiple Alerts (ID 31)

Alert Description:
Aggregated 4 alerts.

Affected Objects:
        Type              Name       Event Count
---------------------------------------------------
Autonomoussystem    IUCC (AS378)          10

Child Alerts:
  Alert ID                    Description
--------------------------------------------------------------
238593      High TCP packet rate.
238594      High packet rate.
238590      Abnormal ratio of SYN packets to ACK packets.
238591      High SYN packet rate.


Further Details:
https://secondary.nemo.geant.org/alerts/details/238592/

All times expressed in UTC.