Lucent Technologies Comcode 108678723 manual ATM switch administration, Call between EPN2 and EPN

DEFINITY ECS Release 8.2 ATM Installation,	Issue 1
Upgrades, and Administration 555-233-124	April 2000
6 Troubleshooting
Troubleshooting ATM-PNC	6-29

Signaling sequences. Use the information in Table 6-10 to help determine trouble with ATM signaling. Abbreviations used in this table correspond to those in Figure 6-2.

Table 6-10. ATM signaling sequences

	Signaling between the PPN and the
	EPN	Call between EPN2 and EPN 3
1.	TN2305/TN2306 circuit pack in the	Station goes off hook in EPN2. CCMS
	PPN establishes a variable bit-rate	messages sent over the already
	switched virtual connection	established EAL to call processing in
	(VBR-SVC) for DEFINITY ECS	the PPN.
	signaling through the ATM switch to
	each EPN.
2.	TN2305/TN2306 circuit pack in the	Call Processing sends a message
	PPN establishes EAL and PACL links	over the PACL to the
	with each EPN within the above	TN2305/TN2306 circuit pack in EPN2
	VBR-SVC.	to establish a connection to the
		TN2305/TN2306 circuit pack in
		EPN3.
3.	Links come up	TN2305/TN2306 circuit pack in EPN2
		sends an ATM signaling message to
		the ATM switch to establish a
		CBR-SVC link to the TN2305/TN2306
		circuit pack in EPN3.
4.		Call processing in the PPN sends
		CCMS messages to the station in
		EPN2 over the already-established
		EAL.
5.		Repeat steps 2 through 4 for the
		EPN3 to EPN2 connection.

ATM switch administration

Is the ATM switch administered correctly?

To verify that a specific Lucent ATM switch was administered correctly, refer to the appropriate reference guide.