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).

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3Com Version 8.1.2 manual Vpi/Vci

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