We get some HighQueueDropRate Alerts from Cisco works on our 2600 Routers with T1 links.

These look to come from both Fa and Se ports of the routers.

What could be causing these alerts?  Or are the thresholds set to low?

Here is an example of the alert.

EVENT ID                = 0006R2W

ALERT ID                = 0000P95

TIME                    = Wed 16-Jun-2010 19:43:39 EDT

STATUS                  = Active

SEVERITY                = Critical

MANAGED OBJECT          = xx.xx.xx.xx

MANAGED OBJECT TYPE     = Routers

EVENT DESCRIPTION       = HighQueueDropRate::Component=IF-xx.xx.xx.xx/2 [Se0/1] [xx.xx.xx.xx] [Link to Router 2];Type=PROPPOINTTOPOINTSERIAL;OutputPacketNoErrorRate=74.97083  PPS;DuplexMode=FULLDUPLEX;InputPacketQueueDropRate=0.0  PPS;InputPacketQueueDropPct=0.0  %;MaxSpeed=1536000;OutputPacketQueueDropPct=2.766784  %;OutputPacketQueueDropRate=2.1333334  PPS;QueueDropThreshold=1;InputPacketNoErrorRate=57.837498  PPS;

CUSTOMER IDENTIFICATION = xxx