cgprsGtpT3TunnelTimer 1.3.6.1.4.1.9.10.48.1.1.1.1

The T3-TUNNEL timer for mobility management. This timer is started by the 'Old SGSN'. Whilst the timer is running, the T-PDUs received by the 'Old SGSN' (from the GGSN), and any buffered T-PDUs are forwarded to the 'New SGSN'.