3Com Version 8.1.2 manual Vpi/Vci

Before You Configure ATM 39

Verifying Signaling The ATM signaling protocol allows end-stations to establish, maintain, and clear ATM connections between end points with virtual connections (VCCs). Multiple virtual connections can exist on a physical link. There are two types of virtual connections: a virtual path and a virtual channel.

You can verify that signaling is operational by viewing the virtual connections — virtual path identifiers (VPIs) and virtual channel identifiers (VCIs) that the system has established.

To verify that signaling is operational, from the top level of the

Administration Console, enter atm ports vcc list

Sample VCC list:

Port 1:	Virtual circuits, actual: 10 maximum: 1024
VPI/VCI	status	aalType	lastChange
0/5	localUpEndToEndUnknown	5				1 min
0/16	localUpEndToEndUnknown	5		1 hr 37 mins 25 secs
3/381	localUpEndToEndUnknown	5	2	hrs 51 mins 40			secs
3/382	localUpEndToEndUnknown	5	2	hrs 51 mins 41			secs
3/383	localUpEndToEndUnknown	5	2	hrs 51 mins 41			secs
3/384	localUpEndToEndUnknown	5	2	hrs 51 mins 40			secs
3/385	localUpEndToEndUnknown	5	2	hrs 51 mins 42			secs
3/386	localUpEndToEndUnknown	5	2	hrs 51	mins 41		secs
3/387	localUpEndToEndUnknown	5	2	hrs 51	mins 42		secs
3/388	localUpEndToEndUnknown	5	2	hrs 51	mins 41		secs

In addition to newly defined VCCs, two additional VCCs are listed, which are reserved VPIs and VCIs used for signaling (VPI 0/VCI 5) and for the UME ILMI (VPI 0/VCI 16).