RAD Data comm IPmux-16 Throughput Limitations and CAC, End-to-End Alarm Generation

IPmux-16Installation and Operation Manual Chapter 1 Introduction

End-to-End Alarm Generation

An end-to-end alarm generation mechanism exists in the IPmux-16 to facilitate the following alarms:

Unframed	AIS will be transmitted toward the near-end PBX in event of:
	• Far-end LOS, AIS
	• PDVT underflow/overflow.
Framed	Timeslot / CAS configurable alarm pattern will be transmitted
	toward the near-end PBX in event of:
	• Far-end LOS, LOF, AIS
	• PDVT underflow/overflow.

Throughput Limitations and CAC

Ethernet port throughput of IPmux-16 is limited to a number (pps) that is smaller than the number (pps) that should be transmitted when all 16 E1/T1 channels are active with 48 bytes per frame. To prevent configurations that will exceed this limit, a CAC mechanism exists and will prevent adding connections as soon as the limit is exceeded. The mechanism also monitors and displays current system performance optimization (percentage of budget in use).

Table 1-5. System Usage for TDM Bytes per Frame

TDM Bytes/Frame	System Resources Consumption per Timeslot
48	0.39%
96	0.2145%
144	0.1521%
192	0.1209%
240	0.1014%
288	0.0897%
336	0.0858%
384	0.078%

Functional Description 1-15