display mpls l2vc interface

Function

The display mpls l2vc interface command displays information about VPWS connections using the LDP signaling.

Format

display mpls l2vc interface { interface-name | interface-type interface-number }

Parameters

Parameter	Description	Value
interface interface-type interface-number	Specifies the type and number of an AC interface. If this parameter is specified, information about the VPWS connection on a specified AC interface is displayed. If no AC interface is specified, information about all VPWS connections configured on the local device is displayed.	-

Parameter

Description

Value

interface interface-type interface-number

Specifies the type and number of an AC interface. If this parameter is specified, information about the VPWS connection on a specified AC interface is displayed. If no AC interface is specified, information about all VPWS connections configured on the local device is displayed.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
l2vpn	read

Usage Guidelines

Usage Scenario

After a VPWS connection is configured or fails, you can use the display mpls l2vc command to view information about the VPWS connection on the device or a specified interface, such as the VC status, AC status, and encapsulation type.

Prerequisites

The basic VPWS function has been configured.

Configuration Impact

If a large number of VPWS connections exist on the device, you are advised to specify interface in the display mpls l2vc command to view specific information about VPWS connections. Otherwise, excess output information may cause the following problems:

The displayed information is repeatedly refreshed and the required information cannot be obtained.
The system does not respond because of prolonged information traversing and searching.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display information about primary and secondary PW connections on GE 0/1/1.1.

<HUAWEI> display mpls l2vc interface gigabitethernet 0/1/1.1
*client interface             : GigabitEthernet0/1/1.1 is up
 Administrator PW             : no
 session state                : up
 AC status                    : up 
 VC state                     : up
 Label state                  : 0
 Token state                  : 0
 VC ID                        : 100
 VC type                      : VLAN
 destination                  : 192.168.3.3
 local group ID               : 0         remote group ID      : 0
 local VC label               : 18        remote VC label      : 18
 local AC OAM State           : up
 local PSN OAM State          : up
 local forwarding state       : forwarding
 local status code            : 0x0 (forwarding)
 remote AC OAM State          : up
 remote PSN OAM state         : up
 remote forwarding state      : forwarding
 remote status code           : 0x0 (forwarding)
 ignore standby state         : no
 Dynamic BFD for PW           : enable
 Detect Multipier             : 3
 Min Transit Interval         : 1000
 Min Receive Interval         : 1000
 Dynamic BFD Session          : built
 BFD for PW                   : available
   BFD sessionIndex           : --  BFD state : up
 VCCV State                   : --
 manual fault                 : not set
 active state                 : active
 forwarding entry             : exist
 OAM Protocol                 : --
 OAM Status                   : --
 OAM Fault Type               : --
 PW APS ID                    : --
 PW APS Status                : --
 TTL Value                    : 1
 link state                   : up
 local VC MTU                 : 1500      remote VC MTU        : 1500
 local VCCV                   : alert ttl lsp-ping bfd
 remote VCCV                  : alert ttl lsp-ping bfd
 local control word           : disable   remote control word  : disable
 tunnel policy name           : --
 PW template name             : --
 primary or secondary         : primary
 load balance type            : flow
 Access-port                  : false
 Switchover Flag              : false
 VC tunnel info               : 1 tunnels
    NO.0 TNL type             : ldp, TNL ID : 0x0000000001004c4b43
 create time                  : 0 days, 1 hours, 2 minutes, 56 seconds
 up time                      : 0 days, 1 hours, 1 minutes, 48 seconds
 last change time             : 0 days, 1 hours, 1 minutes, 48 seconds
 VC last up time              : 2012/12/05 02:50:41
 VC total up time             : 0 days, 1 hours, 1 minutes, 48 seconds
 CKey                         : 1
 NKey                         : 1493172332
 L2VPN QoS CIR value          : 3888
 L2VPN QoS PIR value          : 3888
 L2VPN QoS qos-profile name   : --
 PW redundancy mode           : frr
 AdminPw interface            : --
 AdminPw link state           : --
 Forward state                : send active, receive active 
 Diffserv Mode                : uniform
 Service Class                : --
 Color                        : --
 DomainId                     : --
 Domain Name                  : --

*client interface             : GigabitEthernet0/1/1.1 is up
 Administrator PW             : no
 session state                : up
 AC status                    : up 
 VC state                     : up
 Label state                  : 0
 Token state                  : 0
 VC ID                        : 101
 VC type                      : VLAN
 destination                  : 192.168.3.3
 local group ID               : 0         remote group ID      : 0
 local VC label               : 19        remote VC label      : 19
 local AC OAM State           : up
 local PSN OAM State          : up
 local forwarding state       : forwarding
 local status code            : 0x0 (forwarding)
 remote AC OAM State          : up
 remote PSN OAM state         : up
 remote forwarding state      : forwarding
 remote status code           : 0x0 (forwarding)
 ignore standby state         : no
 Dynamic BFD for PW           : enable
 Detect Multipier             : 3
 Min Transit Interval         : 1000
 Min Receive Interval         : 1000
 Dynamic BFD Session          : built
 BFD for PW                   : available
   BFD sessionIndex           : --  BFD state : up
 VCCV State                   : --
 manual fault                 : not set
 active state                 : inactive
 forwarding entry             : exist
 OAM Protocol                 : --
 OAM Status                   : --
 OAM Fault Type               : --
 PW APS ID                    : --
 PW APS Status                : --
 TTL Value                    : 1
 link state                   : up
 local VC MTU                 : 1500      remote VC MTU        : 1500
 local VCCV                   : alert ttl lsp-ping bfd
 remote VCCV                  : alert ttl lsp-ping bfd
 local control word           : disable   remote control word  : disable
 tunnel policy name           : --
 PW template name             : --
 primary or secondary         : secondary
 load balance type            : flow
 Access-port                  : false
 Switchover Flag              : false
 VC tunnel info               : 1 tunnels
    NO.0 TNL type             : ldp, TNL ID : 0x0000000001004c4b43
 create time                  : 0 days, 1 hours, 2 minutes, 56 seconds
 up time                      : 0 days, 1 hours, 1 minutes, 48 seconds
 last change time             : 0 days, 1 hours, 1 minutes, 48 seconds
 VC last up time              : 2012/12/05 02:50:41
 VC total up time             : 0 days, 1 hours, 1 minutes, 48 seconds
 CKey                         : 2
 NKey                         : 1493172332
 L2VPN QoS CIR value          : 3888
 L2VPN QoS PIR value          : 3888
 L2VPN QoS qos-profile name   : --
 PW redundancy mode           : frr
 AdminPw interface            : --
 AdminPw link state           : --
 Forward state                : send inactive, receive inactive 
 Diffserv Mode                : uniform
 Service Class                : --
 Color                        : --
 DomainId                     : --
 Domain Name                  : --

 reroute policy          : delay 30 s, resume 10 s
 reason of last reroute  : Same LDP mapping was received with matching interface parameters
 time of last reroute    : 0 days, 0 hours, 9 minutes, 27 seconds
 delay timer ID          : --           residual time :--
 resume timer ID         : --           residual time :--
 holdoff timer ID        : --           residual time :--

# Display information about VPWS connections on GE 0/1/1.1.

<HUAWEI> display mpls l2vc interface gigabitethernet 0/1/1.1
*client interface             : GigabitEthernet0/1/1.1 is up
 Administrator PW             : no
 session state                : up
 AC status                    : up
 VC state                     : up
 Label state                  : 0
 Token state                  : 0
 VC ID                        : 100
 VC type                      : VLAN
 destination                  : 192.168.3.3
 local group ID               : 0         remote group ID      : 0
 local VC label               : 18        remote VC label      : 18
 local AC OAM State           : up
 local PSN OAM State          : up
 local forwarding state       : forwarding
 local status code            : 0x0 (forwarding)
 remote AC OAM State          : up
 remote PSN OAM state         : up
 remote forwarding state      : forwarding
 remote status code           : 0x0 (forwarding)
 ignore standby state         : no
 Dynamic BFD for PW           : enable
 Detect Multipier             : 3
 Min Transit Interval         : 1000
 Min Receive Interval         : 1000
 Dynamic BFD Session          : built
 BFD for PW                   : available
   BFD sessionIndex           : --  BFD state : up
 VCCV State                   : --
 manual fault                 : not set
 active state                 : active
 forwarding entry             : exist
 OAM Protocol                 : --
 OAM Status                   : --
 OAM Fault Type               : --
 PW APS ID                    : --
 PW APS Status                : --
 TTL Value                    : 1
 link state                   : up
 local VC MTU                 : 1500      remote VC MTU        : 1500
 local VCCV                   : alert ttl lsp-ping bfd
 remote VCCV                  : alert ttl lsp-ping bfd
 local control word           : disable   remote control word  : disable
 tunnel policy name           : --
 PW template name             : --
 primary or secondary         : primary
 load balance type            : flow
 Access-port                  : false
 Switchover Flag              : false
 VC tunnel info               : 1 tunnels
    NO.0 TNL type             : ldp             , TNL ID : 0x0000000001004c4b43
 create time                  : 0 days, 1 hours, 2 minutes, 56 seconds
 up time                      : 0 days, 1 hours, 1 minutes, 48 seconds
 last change time             : 0 days, 1 hours, 1 minutes, 48 seconds
 VC last up time              : 2012/12/05 02:50:41
 VC total up time             : 0 days, 1 hours, 1 minutes, 48 seconds
 CKey                         : 1
 NKey                         : 1493172332
 L2VPN QoS CIR value          : 3888
 L2VPN QoS PIR value          : 3888
 L2VPN QoS qos-profile name   : --
 PW redundancy mode           : frr
 AdminPw interface            : --
 AdminPw link state           : --
 Forward state                : send inactive, receive inactive 
 Diffserv Mode                : uniform
 Service Class                : --
 Color                        : --
 DomainId                     : --
 Domain Name                  : --

**Table 1** Description of the **display mpls l2vc interface** command output
Item	Description
up time	How long the VC remains in the Up state. If the PW is in the Down state, this value is 0.
Administrator PW	Whether the PW is an mPW: yes. no. A PW can be an mPW only if the AC interface is a loopback interface.
PW APS ID	ID of the PW APS instance associated with the local PW.
PW APS Status	PW APS status: LO: Services are locked to the primary PW. SF_P: The secondary or bypass PW becomes faulty. FS: Services are forcibly switched from the primary PW to the secondary or bypass PW. SF: The primary PW becomes faulty. SD_P: Signals degrade on the secondary or bypass PW. SD: Signals degrade on the primary PW. MS: Services are manually switched from the primary PW to the secondary or bypass PW. WTR: The system is waiting to switch traffic back from the secondary or bypass PW to the primary PW. NR: The primary, secondary, or bypass PW is normal. --: The PW APS is not configured or the configuration is not finished.
PW template name	Name of a PW template.
PW redundancy mode	PW redundancy mode: Independent: The PW is in independent mode. frr: The PW is in FRR mode. master: The PW is in master/slave mode. By default, the PW redundancy mode is FRR.
session state	Status of the LDP session: up. down.
AC status	AC status: up. down.
VC state	VC status: up. down.
VC ID	VC ID. A combination of the VC ID and VC Type uniquely identifies a VC.
VC type	Encapsulation type of the VC.
VC tunnel info	Information about the VC tunnel.
VC last up time	Last time when the VC was Up.
VC total up time	Total duration for the VC being Up.
Label state	Label status: 0: The label can be used. 1: Wait for the SMB to confirm the label status. 2: The label is released. 3: SMB confirming failed.
Token state	Token status: 0: The label can be used. 1: Wait for the SMB to confirm the label status. 2: The label is released. 3: SMB confirming failed.
destination	Destination address.
local VC label	Local VC label.
local group ID	Local group ID.
local AC OAM State	OAM status of the local AC interface: up. down.
local PSN OAM State	Status of the local device on the PSN side: up. down.
local forwarding state	Status of the local forwarding table: forwarding. not forwarding.
local status code	Status code of the local PW: 0x0: The local PW functions as the primary PW and is in the Up state. 0x20: The local PW functions as the secondary PW and is in the Up state. 0x1: The local PW functions as the primary PW and is in the Down state. 0x21: The local PW functions as the secondary PW and is in the Down state.
local VC MTU	MTU of a local VC.
local VCCV	VCCV mode supported by the local end: alert lsp-ping bfd (default): VCCV is implemented by sending LSP ping and BFD packets in label alert mode when the control word function is not enabled. cw alert lsp-ping bfd: VCCV can be implemented by sending LSP ping and BFD packets in label alert or control word mode after the control word function is enabled.
local control word	Whether the control word function is enabled on the local end: disable. enable.
group ID	ID of a group to which the VC belongs. The default value is 0.
remote control word	Whether the control word function is enabled on the remote end: disable. enable.
remote group ID	Remote group ID.
remote AC OAM State	OAM status of the remote AC interface: up. down.
remote forwarding state	Status of the remote forwarding table: forwarding. not forwarding.
remote status code	Status code of the remote PW: 0x0: The remote PW functions as the primary PW and is in the Up state. 0x20: The remote PW functions as the secondary PW and is in the Up state. 0x1: The remote PW functions as the primary PW and is in the Down state. 0x21: The remote PW functions as the secondary PW and is in the Down state.
remote VCCV	VCCV mode supported by the remote end: alert lsp-ping bfd (default): VCCV is implemented by sending LSP ping and BFD packets in label alert mode when the control word function is not enabled. cw alert lsp-ping bfd: VCCV can be implemented by sending LSP ping and BFD packets in label alert or control word mode after the control word function is enabled.
remote VC label	Remote VC label.
remote PSN OAM state	OAM status of the remote PSN interface: up. down.
remote VC MTU	MTU of a remote VC.
OAM Protocol	Link (PW) status monitoring protocol: MPLS-OAM: Multiprotocol Label Switching (MPLS) operation, administration and maintenance (OAM) is used to monitor the link status. TP-OAM: Multiprotocol Label Switching Transport Profile (MPLS-TP) OAM is used to monitor the link status. --: No link monitoring protocol is used to monitor the link status, or the packet receiving function of a configured link monitoring protocol is not enabled.
OAM Status	Link (PW) status detected by the link monitoring protocol: Nondefect: The link status is normal. Defect: The link is faulty. Detect-stop: Link monitoring stops. --: No link monitoring protocol is used to monitor the link status, or the packet receiving function of a configured link monitoring protocol is not enabled.
OAM Fault Type	Type of the link fault detected by the link monitoring protocol: none: No fault is detected. MPLS-TP OAM alarms: dloc: indicates the loss of connection. rdi: indicates a remote defect indication. dmmg: indicates MEG information inconsistency. dmmg: indicates MEP information inconsistency. unp: indicates priority information inconsistency. unphb: indicates PHB information inconsistency. ais: indicates an alarm indication signal. sd1-near: indicates a near-end signal defect. sd1-far: indicates a far-end signal defect. sd2-near: indicates a near-end signal fault. sd2-far: indicates a far-end signal fault. lock: indicates a LOCK alarm. csf: indicates a CSF alarm. MPLS OAM alarms: locv: indicates the loss of connectivity. excess: indicates the receiving of excessive trail termination source identifiers. mismatch: indicates the inconsistency of trail termination source identifiers. mismerge: indicates the incorrect merge of trail termination source identifiers. --: indicates that the PW link monitoring protocol is not configured or the configuration is not finished.
forwarding entry	Whether forwarding entries exist: exist. not exist.
ignore standby state	Whether PW ignores the secondary status of remote: yes. no.
Dynamic BFD for PW	Whether dynamic BFD for PW is enabled. The default value is enabled. This field is displayed only when dynamic BFD for VPWS is configured.
Dynamic BFD Session	Whether a dynamic BFD session is created: built. not built. This field is displayed only when dynamic BFD for VPWS is configured.
BFD for PW	Whether BFD is enabled to check PW status: available. unavailable.
BFD sessionIndex	BFD session index.
BFD state	BFD session status: up. down. admin down. invalid State.
Detect Multipier	The local detection multiplier of a BFD session.
Min Transit Interval	Minimum interval at which dynamic BFD packets are sent. This field is displayed only when dynamic BFD for VPWS is configured.
Min Receive Interval	Minimum interval at which dynamic BFD packets are received. This field is displayed only when dynamic BFD for VPWS is configured.
VCCV State	Virtual Circuit Connectivity Verification (VCCV) state: up. down.
manual fault	Whether a PW fault is manually simulated: set. not set.
active state	Whether the VC is in the Active state. If a VC is active, the VC can forward packets: active. inactive.
TTL Value	TTL value of the PW. The default value is 1.
link state	Integrative PW status: up. down. If any of the following status is Down, the PW link state is Down: Service PW status. Status of the mPW associated with service PWs. Status of the BFD session associated with service PWs. PW state code. PW status detected by VCCV check. OAM status.
control word	Whether the control word function is enabled on the local end: disable. enable.
tunnel policy name	Name of a tunnel policy.
primary or secondary	Whether the local status of the VC is primary or secondary.
load balance type	Load balancing mode of LDP VPWS: Flow: The load balancing mode is per-session load balancing. Packet: The load balancing mode is per-packet load balancing.
Access-port	Whether the interface supports the access-port attribute: true: The interface supports the access-port attribute. false: The interface does not support the access-port attribute.
Switchover Flag	Whether to perform a switchover: false. true.
create time	How long the VC has been created.
time of last reroute	The time of last reroute.
last change time	How long the VC status remains unchanged.
CKey	Index of the PW.
NKey	Index of the public tunnel.
L2VPN QoS CIR value	Committed information rate for VPN QoS.
L2VPN QoS PIR value	Peak information rate for VPN QoS.
L2VPN QoS qos-profile name	VPN QoS profile name.
AdminPw interface	AC interface of the mPW to which the current PW is bound. The AC interface must be a loopback interface. This field is displayed only if the PW is not an mPW. If -- is displayed in this field, the PW is not bound to an mPW.
AdminPw link state	Status of the mPW to which the current PW is bound: Up. Down. This field is displayed only if the PW is not an mPW. If -- is displayed in this field, the PW is not bound to an mPW.
Forward state	PW forwarding status: send inactive: The PW cannot forward service packets. This value is displayed when a PW is Down. For specific handling suggestions, see hwPWVcDown. receive inactive: The PW cannot receive service packets. This value is displayed when a PW is Down. For specific handling suggestions, see hwPWVcDown. send active: The PW can forward service packets. receive active: The PW can receive service packets.
Diffserv Mode	QoS DiffServ mode for VLL services.
Service Class	QoS service class for VLL services.
Color	QoS color for VLL services.
DomainId	ID of a domain.
Domain Name	Name of a domain.
reroute policy	reroute policy.
delay timer ID	The delay timer ID.
resume timer ID	The resume timer ID.
reason of last reroute	The reason of last reroute.
residual time	Remaining time.
holdoff timer ID	The holdoff timer ID.
client interface	AC interface name.