Running a GRE tunnel between two 3845s with full DS3s. DS3/tunnel only running at around 8Mbps and picking up significant "output drops" on the Tunnel interface but not on the DS3 which is carrying the tunnel. Trying to see what these drops represent. Not seeing any problems with Apps but may want to run voice and need to understand these drops. Standard GRE tunnel with FIFO. No IPSec.