Your work around is Report there is no historical chart available .
go to Events
Event Type, select Interface down, then select the date range
You would need to run twice, once for up, then for down
Export it to PDF to see the results as report .
You might also report on outage duration of interfaces, and take it from there. It's not the perfect solution, but it might be an acceptible alternative. The report is similar to the Nodes Outage duration I've seen around the forums, but there are some subtle differences. You ca take the stuff that's commented out out of the report, or modify that to fit your custom properties, etc...
Nodes.Caption as Node,
Interfaces.Status as 'Current Status',
Interfaces.Caption as Interface,
Interfaces.Organization_Endpoint AS Agency,
(SELECT TOP 1
FROM Events AS Endtime
WHERE EndTime.EventTime > StartTime.EventTime AND
EndTime.EventType = 11 AND
EndTime.NetObjectType = 'I' AND
EndTime.NetObjectID = StartTime.NetObjectID
ORDER BY EndTime.EventTime)) AS OutageDurationInMinutes
INNER JOIN Nodes ON StartTime.NetworkNode = Nodes.NodeID
INNER JOIN INTERFACES ON StartTime.NetObjectID=Interfaces.InterfaceID
StartTime.EventType = 10 AND
StartTime.NetObjectType = 'I' AND
eventtime between dateadd(month, -1, getdate()) and getdate()
--AND Nodes.Device_Role = 'WAN'
--AND Interfaces.Organization_EndPoint is not null
ORDER BY StartTime.EventTime desc
-- Order BY Nodes.caption desc