RAD Data comm IPmux-16 Troubleshooting Chart, Fault Probable Cause Remedial Action

IPmux-16Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics

4.2 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 4-2. IPmux-16 Troubleshooting Chart

Fault	Probable Cause	Remedial Action
The E1/T1 equipment	Configuration problems	1.	Check IPmux-16 port
connected to IPmux-16 is not			configuration and, if
synchronized (E1/T1 level) with			necessary, other IPmux-16
IPmux-16			parameters.
		2.	Check E1/T1 physical
			connection (use loopbacks).
Slips and errors in E1/T1	• Ethernet port in switch and	1.	Check E1/T1 physical
equipment	IPmux-16 are not in the same		connection (use loopbacks)
	rate or duplex mode		and E1/T1 statistics.
	• Ethernet port is set to work in	2.	Check timing settings
	half duplex mode (may cause		according to explanation in
	extreme PDV because of		this manual.
	collisions and backoffs)	3.	Check switch and IPmux-16
	• Timing configuration is not		port configuration
	properly set (periodic buffer		(negotiation, rate, duplex
	under/overflows – bundle		mode) and check Ethernet
	connection status menu)		statistics.
	• Network PDV or Lost Frames	4.	Check PDV introduced by
			the network, and, if
			necessary, increase PDVT
			jitter buffer setting.
Echo in voice		1.	Check network delay and try
			to decrease it.
		2.	Try to decrease PDVT (jitter)
			buffer.

Troubleshooting 4-3