H3C MSR810 - Page 215

203
vpi/vci: Specifies a PVC by its VPI and VCI values. The value range for the vpi argument is 0 to 255.
The value range for the vci argument varies by interface type. For more information, see Table 46.
The values of the vpi and vci arguments cannot be 0 at the same time. As a best practice, do not use
VCI values 0 through 31 because they are reserved for special purposes.
Usage guidelines
If you do not specify an ATM interface, this command displays brief information about all PVCs on all
ATM interfaces.
If you specify an ATM interface but do not specify a PVC, this command displays brief information
about all PVCs on the specified ATM interface.
If you specify an ATM interface and a PVC, this command displays detailed information about the
specified PVC.
Examples
# Display brief information about all PVCs on all ATM interfaces.
<Sysname> display atm pvc-info
VPI/VCI State PVC name Encap Protocol Interface
1/32 UP aa SNAP IP ATM2/4/0
1/33 UP Sysname MUX None ATM2/4/0
1/55 UP datacomm SNAP PPP ATM2/4/0.1
2/66 UP N/A SNAP IP ATM2/4/0.4
2/101 UP beijing SNAP ETH ATM2/4/0.2
Table 42 Command output
Field
Description
State
PVC state:
• UP—The following states are up:
 State of the ATM interface to which the PVC belongs.
 Shutdown state.
 OAM state.
• DOWN—One or more of the following states is down:
 State of the ATM interface to which the PVC belongs.
 Shutdown state.
 OAM state.
PVC name PVC name.
N/A
means no PVC name.
Encap
AAL5 encapsulation type of the PVC:
• SNAP—LLC/SNAP encapsulation.
• NLPID—RFC1490 encapsulation.
• MUX—MUX multiplexing encapsulation.
Protocol
Upper-layer protocol running on the PVC:
• PPP—PPP protocol.
• IP—IP protocol.
• ETH—Ethernet protocol.
• None—No protocol is configured.
Interface Name of the interface to which the PVC belongs.
# Display detailed information about the specified PVC.
<Sysname> display atm pvc-info interface atm 2/4/1 pvc 1/100
ATM2/4/1, VPI: 1, VCI: 100
Encapsulation: SNAP, Protocol: IP