RAD Data comm IPmux-11 Troubleshooting Chart, Fault Probable Cause Remedial Action

Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual

6.4 Troubleshooting

The following table presents the event types as they appear on the Event Log File and lists the actions required to correct the event (alarm) indication.

Table 6-4. IPmux-11 Troubleshooting Chart

Fault	Probable Cause	Remedial Action
E1/T1 equipment	Configuration or physical layer	1.	Check cables and physical
connected to IPmux-11 is	problems		connectivity.
not synchronized with		2.	Check IPmux-11 E1/T1
IPmux-11.
			configuration and, if necessary,
			other IPmux-11 parameters.
		3.	Check E1/T1 physical connection
			(use loopbacks).
Slips and errors in E1/T1	• Ethernet port in switch and	1.	Check E1/T1 physical connection
equipment	IPmux-11 are not in the same		(use loopbacks).
	rate or duplex mode	2.	Check timing settings according to
	• Ethernet port is set to work in		explanation in this manual.
	half duplex mode (may cause	3.	Check switch and IPmux-11 port
	extreme PDV because of
			configuration (negotiation, rate,
	collisions and backoffs)
			duplex mode).
	• Timing configuration is not	4.	Check PDV introduced by the
	properly set (periodic buffer
			network, and, if necessary, increase
	under/overflows shown on IP
			PDVT jitter buffer setting..
	channel status menu)
	• Network PDV or lost frames
Echo in voice	High delay in voice path	1.	Check network delay and try to
			decrease it.
		2.	Try to decrease PDVT (jitter) buffer.

6-16 Troubleshooting IPmux-11 Ver. 2.00