Lucent Technologies Comcode 108678723 Administration, Troubleshooting CES Step Action Description

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000
6 Troubleshooting
Troubleshooting ATM-CES	6-8

Administration

Is DEFINITY ECS ATM-CES administered correctly?

D-channel problems. If the D-channel does not come up following CES administration, use the following steps to troubleshoot the cause.

Table 6-5. Troubleshooting CES

√	Step	Action	Description
	1.	Verify PVC is correctly	Check VPI/VCI (change signaling-group siggrpnbr,
		administered	screen 2)
	2.	Check channel	Check that both ends of the emulated circuit have the
		number	same number of channels (change signaling-group
			siggrpnbr, screen 2).
	3.	Check trunks	Both ends of the emulated circuit have the same number
			of trunks (change trunk-grouptrkgrpnbr, screen 6).
				NOTE:
				A trunk group can contain either ISDN or ATM trunks
				but not both.
	4.	Check channels	Both ends of the emulated circuit use the same channel
			numbers (change signaling-group siggrpnbr, screen 2).
			Use the same channel numbers for the port to channel
			mapping (page 2) for the other end. See ‘‘Changing the
			port-to-channel mapping’’ on page 5-22 for more
			information.
	5.	Check maximum	The maximum number of emulated circuits (signaling
		number of emulated	groups) on a single ATM circuit pack is 8.
		circuits	■ Each circuit pack can have more than one signaling
				group and more than one D-channel
			■ The D-channel from one emulated circuit cannot
				signal for the bearer channels of another emulated
				circuit (no Nonfacility Associated Signaling for virtual
				circuits).
	6.	Check minimum ports	A minimum of 7 ports must be administered for each
		for emulated circuit	emulated circuit as follows:

■ at least 6 bearer (B) channels

■ one signaling (D) channel (required)