diff --git a/topology/Internet2/Internet2Chicago/I2ChicagoInfrastructure_downtime.yaml b/topology/Internet2/Internet2Chicago/I2ChicagoInfrastructure_downtime.yaml
new file mode 100644
index 000000000..7169b33dd
--- /dev/null
+++ b/topology/Internet2/Internet2Chicago/I2ChicagoInfrastructure_downtime.yaml
@@ -0,0 +1,11 @@
+- Class: UNSCHEDULED
+  ID: 1631843312
+  Description: Node offline
+  Severity: Outage
+  StartTime: Oct 24, 2023 16:00 +0000
+  EndTime: Oct 27, 2023 19:30 +0000
+  CreatedTime: Oct 24, 2023 21:52 +0000
+  ResourceName: Stashcache-Chicago
+  Services:
+  - XRootD cache server
+# ---------------------------------------------------------