MS PW

The MS-PW is created based on the PW switching provide edge (S-PE). By using the MS-PW to carry services, you can save the tunnel resources and transmit services across different networks. In this interface, you can set and query parameters related to the MS PW.

Navigation Path

In the NE Explorer, click the NE and choose Configuration > Packet Configuration > MPLS Management > PW Management from Function Tree. Select the MS PW tab.

Guideline

It is recommended that you set the QoS parameters to the same value for the forward and backward PWs.
In the case when the forward PW and the backward PW are in different domains, their QoS parameters, except the bandwidth limitation, can be set to different values.

Short-Cut Menu

Short-Cut Menu	Description
Browse Current Alarms	Browse current alarms of the PW.
Browse Historical Alarms	Browse history alarms of the PW.
Alarm Suppression	When an alarm is suppressed for a PW, the alarm is not reported either on the NE or on the Web LCT.
Browse Performance	Browse the performance events to check for the abnormal status that does not generate alarms on the PW. The maintenance personnel then can take proper measures to avoid faults.
Common Performance Management	Browse the common performance events of PW to check for the abnormal status that does not generate alarms on the PW. The maintenance personnel then can take proper measures to avoid faults.
Disabled	Disables the current PW.
Enabled	Enables the current PW.
Replace Tunnel	Replaces the tunnel that carries the current PW.

Parameters

**Table 1** Descriptions of basic parameters for MS PW
Field	Value	Description
ID	For example: 5	Sets the ID of a multi-hop PW.
Name	For example: mspw01	Sets the name of a multi-hop PW.
MTU (bytes)	46 to 9000	Sets the maximum transmission unit allowed by a multi-segment PW.
Deployment Status	Deployed, Undeployed	Displays the current deployment state of a multi-segment PW.
Active	Active, Inactive	Indicates whether a multi-segment PW is active.
Service Type	Ethernet Service, ATM Service, CES Service, CES Clock Service	Sets the type of services carried by a multi-segment PW.
Transparent Transmission of Section Overheads	None	Specifies whether to enable the transparent transmission of section overheads. Set this parameter only when Service Type is CES Service. Set this parameter to Disable or Enable only for VC4 and VC4 (3VC3) CES services. Sets this parameter to Enable* if you do not need to process section overheads for services. Set this parameter to None for CES services of other levels.
Tunnel Select Mode	Manually, Auto Select	In the Auto Select mode, the Web LCT selects automatically the tunnel for carrying a PW based on the tunnel priority set in Forward Tunnel Selection or Backward Tunnel Selection In the Manually mode, you need to set manually the tunnel for carrying a PW. NOTE: When tunnel selection mode is set to Auto Select, the Peer LSR ID must be set, click the Forward Tunnel Select or Backward Tunnel Select tab, and then set the tunnel type priority for automatic selection.
Tunnel Type (Forward Tunnel Selection)	Dynamic RSVP TE Tunnel, Static MPLS Tunnel, Dynamic LDP Tunnel, IP Tunnel, GRE Tunnel	Sets the tunnel priority used by the Web LCT to select automatically the tunnel for a forward PW.
Tunnel Type (Backward Tunnel Selection)	Dynamic RSVP TE Tunnel, Static MPLS Tunnel, Dynamic LDP Tunnel, IP Tunnel, GRE Tunnel	Sets the tunnel priority used by the Web LCT to select automatically the tunnel for a backward PW.

**Table 2** Descriptions of PW Basic Attributes
Field	Value	Description
Index	Example: 1	Indicates the PW index. The PW in alarm can be located according to the Monitored Object value.
PW ID	Example: 5	Display the PW ID.
PW Status	Enabled, Disabled	Display the enable state of the PW.
PW Signaling Type	Static, Dynamic	Display the PW signaling type. If PW Signaling Type is set to dynamic, the system automatically allocates the PW ingress label and PW egress label. If PW Signaling Type is set to static, set the PW ingress label and PW egress label manually.
PW Type	Example: SATop	Display the PW type.
Transparent Transmission of Section Overheads	None, Disable, Enable	Specifies whether to enable the transparent transmission of section overheads. Set this parameter only when Service Type is CES Service. Set this parameter to Disable or Enable only for VC4 and VC4 (3VC3) CES services. Sets this parameter to Enable* if you do not need to process section overheads for services. Set this parameter to None for CES services of other levels.
PW Direction	Bidirectional, Unidirectional	Display the direction of the PW. Currently, the static unicast PW should only be bidirectional.
PW Encapsulation Type	MPLS	Display the PW encapsulation type.
PW Incoming Label/Source Port	Example: 35	Display the PW ingress label. Indicates the label that enters the PW.
PW Engress Label/Sink Port	Example: 36	Display the PW egress label. Indicates the label that exits the PW.
Peer LSR ID	Example: 192.168.0.3	Specifies the LSR ID for the peer node of a PW in the case of single-segment PWs. Specifies the LSR ID for the peer node of the forward/backward PW in the case of multi-segment PWs.
Local Operating Status	Example: Up	Display the local Operating status of the PW.
Remote Operating Status	Example: Down	Display the remote Operating Status of the PW.
Overall Operating Status	Up, Down	Display the overall Operating Status of the PW. Overall Operating Status is up only when Local Operating Status and Remote Operating Status are up.
Tunnel	Example: 1	Display the ID of the tunnel that carries the PW. The tunnel specified by a bidirectional PW should be an ingress unicast tunnel.
Tunnel Type	Example: MPLS	Indicates or specifies the type of the tunnel.
Ingress Tunnel	Example: 1	Display the ID of the tunnel that carries the PW. The tunnel specified by a bidirectional PW should be an ingress unicast tunnel.
Egress Tunnel	Example: 1	Displays the ID of the egress tunnel.
Deployment Status	Deployed, Undeployed	Displays the current deployment state of a PW.
Tunnel for Auto Selection	For example: Static MPLS Tunnel; Dynamic RSVP TE Tunnel; IP Tunnel, GRE Tunnel	Displays the tunnel automatic selection policy when Tunnel Selection Mode is Auto Select. The tunnel types in the value are separated with a comma and the priority of the tunnels of different types decreases from left to right.
Query Actual Bandwidth	Checked, Unchecked	When this parameter is selected, the actual effective bandwidth is queried. When this parameter is not selected, the configured bandwidth is queried.
Oam Recommendation	For example: MPLS OAM(Y.1711)	Displays Oam Recommendation.

**Table 3** Descriptions of the parameters for QoS Information
Field	Value	Description
Index	For example: 1	Indicates the PW index. The PW in alarm can be located according to the Monitored Object value.
PW ID	Example: 5	Display the PW ID.
Direction	Ingress, Egress	Display the direction of the PW.
Bandwidth Limit	Enabled, Disabled	Display the bandwidth limit of the PW. If Bandwidth Limit is enabled, Committed Information Rate and Peak Information Rate can be set.
CIR (kbit/s)	64 to 10000000	Display the committed information rate of the PW.
CBS (bytes)	-	This parameter is not supported.
PIR (kbit/s)	64 to 10000000	Display the peak information rate of the PW.
PBS (bytes)	-	This parameter is not supported.
EXP	None, 0, 1, 2, 3, 4, 5, 6, 7	Display the ingress PW priority. The number 7 indicates the highest priority.
Policy	Example: 5	Display the QoS policy of the PW.
LSP Mode	Uniform, Pipe	Display the LSP mode. Uniform: The CoS of user packets should be recovered when the tunnel label is stripped. Pipe: The CoS of user packets need not be recovered when the tunnel label is stripped. When the direction of the PW is Egress, you can set the LSP mode.

**Table 4** Descriptions of the parameters for Advanced Attributes
Field	Value	Description
Index	For example: 1	Indicates the PW index. The PW in alarm can be located according to the Monitored Object value.
PW ID	Example: 5	Displays or specifies the ID for a PW.
Control Word	No Use, Preferentially Use, Must Use	Display the control word of the PW.
Control Channel Type	NONE, CW, Alert Label	Display the control channel type.
VCCV Verification Mode	NONE, Ping Default: Ping	Display the VCCV verification mode.
CES Level	E1, T1	Sets the CES service level.
64K Timeslot Number	Example: 1	Sets or displays the 64K timeslot number.
Request VLAN	Example: 1-4095 Default: not specified	Display the request VLAN. In the case of a static PW, the request VLAN indicates the VLAN tag attached during the PW encapsulation. In the case of a dynamic PW, if the local equipment cannot attach the VLAN tag, the opposite equipment should attach the VLAN tag during the PW encapsulation.
TPID	1-65535	Specifies the type field of the request VLAN when the PW type is Ethernet Tagged Mode.
Max.Concatenated Cell Count	Example: 10	Display the maximum concatenated cell count of the ATM service.
RTP Head	Enabled, Disabled	Display the RTP head. The RTP head is used to load the clock signals.
Jitter Compensation Buffering Time (us)	Example: 5000	Display the jitter compensation buffering time. The jitter compensation buffering time ensures that the CES services are in real time.
Packet Loading Time (us)	Example: 1000	Display the packet loading time of packets. The packet loading time of packets can improve the encapsulation efficiency.
Ingress Clock Mode	Adaptive Clock Mode, External Clock Mode, Null	Display the ingress clock mode. The clock mode ensures that the CES service can be correctly restored at the sink.
Egress Clock Mode	Adaptive Clock Mode, External Clock Mode, Null	Display the egress clock mode. The clock mode ensures that the CES service can be correctly restored at the sink.
Enable CES Service Alarm Transparent Transmission	Enabled, Disabled	If the function is enabled, when a fault occurs on the AC side of a CES service, the remote end is notified of the fault. When a fault indication is received from the network side or the remote end, the NE inserts the corresponding alarm on the AC side.
Threshold of Entering R Bit Inserting Status	1 to 65535	If the CES service alarm transparent transmission is enabled, when the number of consecutively lost packets of an NE exceeds the threshold, the RBIT alarms are automatically inserted to the network side and the alarms are reported.
Threshold of Exiting R Bit Inserting Status	1 to 65535	When the number of consecutive packets received by an NE exceeds the threshold, the insertion of RBIT alarms on the network side is automatically canceled and the reporting of the alarm is canceled.
Sequence Number Mode	Standard mode, Huawei mode	The standard mode is applicable to the network consisting of devices from Huawei and other manufacturers. The Huawei mode is applicable to the network consisting of only Huawei devices.