6 MTP2 Link Congestion

MTP2 Link congestion is derived from the utilization of link transmission buffers maintained at MTP2 adaption layer and un-acked messages buffered at Adax MTP2 connection queue. The Comcol sysmetic framework is used to track the usage and calculating thresholds. Congestion levels are derived as per below table:

Congestion Level	Threshold Level	Onset Threshold	Clear Threshold
3	Critical	95	90
2	Major	85	80
1	Minor	60	50

Based on the congestion level of Links, congestion level of Linkset is derived.

Congestion Level of Linkset = Max (Congestion level of all Links in the linkset)

Based on congestion Level of linkset, congestion level of RSPs with route having the same linkset are derived.