Ethernet Service OAM Management

In this interface, you can view, create, delete, and modify the maintenance points, and can trigger the OAM maintenance function.

Navigation Path

For RTN NEs, in the NE Explorer, select the NE and choose Configuration > Ethernet OAM Management > Ethernet Service OAM Management from the Function Tree.

Buttons

Button	Description
New	New Maintenance Domain, New Maintenance Association, New MEP Point or New Test ID.
Delete	Deletes Maintenance Domain, Delete Maintenance Association, Delete MEP Point or Delete Test ID.
OAM	Activates CC, Deactivate CC, Start LB, Start LT, and Manage Remote MEP Point.

Short-Cut Menu

Short-Cut Menu	Description
Browse Current Alarms	Views current alarms of an Ethernet service.
Browse Historical Alarms	Views historical alarms of an Ethernet service.
Alarm Suppression	When an alarm is suppressed for a service, the alarm is not reported either on the NE or on the U2000 Web LCT.
Browse Performance	Views the performance events to check for the abnormal status that does not generate alarms on the network equipment or services. The maintenance personnel then can take proper measures to avoid faults.
Performance Statistics Management	Manages the performance events. NOTE: If the selected service is an E-Line service on a Port+VLAN+PRI network, the following conditions are required for packet loss and delay measurement: The user-side and network-side VLANs of the service are different and belong to different VLAN aggregation groups. Otherwise, performance monitoring fails for the service. No PRI on the network is mapped to different PRIs. Otherwise, the collected data will be incorrect.
Activate CC	When the CC is activated at both the source and sink, the source periodically reconstructs and transmits CC cells. If not receiving the CC cells from the source, the sink automatically reports the ETH_CFM_LOC alarm.
Deactivate CC	When the CC is deactivated, the source does not check the connectivity.
Start LB	Performs loopback for an Ethernet service without interrupting the service to check service connectivity and locating faults.
Start LT	Traces a link for an Ethernet service to check information about MIPs of a link and locating faults.
View Remote MEP Point	View the information about the remote MEPs in a maintenance association.

Parameters

**Table 1** Descriptions of the parameters for Ethernet Service OAM Management
Field	Value	Description
Maintenance Domain Name	8 bytes	Sets the name of the maintenance domain.
Maintenance Domain Level	0 to 7	Sets the level of the maintenance domain. The value 7 and 0 indicates the highest and lowest levels respectively.
Maintenance Association Name	8 bytes	Sets the name of the maintenance association.
Relevant Service	Service ID + Service name. Example: 10-service	Selects a relevant service.
CC Test Transmit Period	3.33 ms, 10 ms, 100 ms, 1s, 10s, 1min, 10min	Sets the transmit period for a CC test. Performs a CC test to check the service connectivity.
Protocol/Standard	802.1ag, Y.1731	Indicates the protocol or standard in use. If a transport NE is connected to a wireless NE, set Protocol/Standard to Y.1731. If the transport NE is connected to another transport NE, set Protocol/Standard to 802.1ag.
MEG ID	Example: 1	Indicates the MEG ID. This parameter is required when Protocol/Standard is set to Y.1731, and the MEG ID must be consistent between the NEs connected to each other. Only the ICC format is supported for MEG ID.
Node	slot number-board name-port number(port name)	Sets the MEP node.
VLAN	Example: 5	Displays the VLAN of the monitored service. NOTE: This parameter can be manually set for the OptiX OSN 500 and OSN 550 when you configure exclusive port occupation. For other transport NEs, this parameters is unconfigurable.
MEP ID	Example: 6	Sets the ID of the MEP.
Direction	Ingress, Egress	Sets the direction of the MEP. Ingress indicates the node in-coming direction. Egress indicates the node out-going direction.
CC Status	Active, Inactive	Sets whether to activate the CC. When the CC is activated, the source transmits the CC frames. If not receiving CC frames within the period 3 to 3.5 times of the transmit period, the sink reports the ETH_CFM_LOC alarm to check the service connectivity.
AIS Active Status	Active, Inactive	Displays or sets AIS activation state.
Client Layer Level	0 to 7	Displays or sets client layer level.
AIS Transmit Period	1s, 1min	Displays or sets the transmit period of AIS signal.
Board	slot number-board name	Sets the board.
Port	slot number-board name-port number(port name)	Sets the port.
Service ID	Example: 10	Displays the Service ID.
Service Name	Example: Service	Displays the service name.
Service Type	E-Line, E-LAN	Displays the service type.
Activation Status	Active, Inactive	Displays the activation status.
Collect Proactive OAM Packets	Yes, No	Specifies whether to collect proactive OAM packets. The options are as follows: Yes: collects 802.1ag protocol packets, such as CCM packets. No: does not collect 802.1ag protocol packets, such as CCM packets. Before measuring LM between two types of NEs, set Collect Proactive OAM Packets to No if the two NEs use different methods to collect statistics on various MEG levels of 802.1ag protocol packets. If the two NEs use the same method, set Collect Proactive OAM Packets to Yes or No. If the two NEs are of the same type, set Collect Proactive OAM Packets to Yes or No regardless of the measurement method. The value of Collect Proactive OAM Packets must be the same on the two involved NEs.
RMEP ID	1-8191	Indicates the ID of the remote MEP (RMEP). To check the RMEP of a MEP, choose OAM > Manage Remote MEP Point.
Priority	0-7, 255, Null	Indicates the type of the LM or DM performance monitoring policy. If you set this parameter to 255 or a number from 0 to 7, perform the following operations: Right-click the record and choose Browse Performance from the shortcut menu. On the RMON Setting tab, click the Event tab below and select the performance events to be monitored. Null: No performance monitoring policy is set. 255: A performance monitoring policy is set without a priority. The policy includes the following four performance events: packet loss rate of E-Line services, number of lost packets for E-Line services, delay of E-Line services, and jitter of E-line services. 0-7: A performance monitoring policy is set with a priority (0-7). The policy includes the following 32 performance events: packet loss rate of E-Line services from priority 0 to priority 7, number of lost packets for E-Line services from priority 0 to priority 7, delay of E-Line services from priority 0 to priority 7, and jitter of E-line services from priority 0 to priority 7.

**Table 2** Descriptions of the parameters for MIP Point
Field	Value	Description
Maintenance Domain Name	8 bytes	Displays the name of the maintenance domain.
Maintenance Domain Level	0-7	Displays the level of the maintenance domain.
Board	slot number-board name	Sets the MIP board.
Port	slot number-board name-port number(port name)	Sets the MIP port.
MIP ID	Example: 6	Sets the ID of the MIP.
Node	slot number-board name-port number(port name)	Sets the MIP node.

**Table 3** Descriptions of the parameters for Test ID
Parameter	Value	Description
Test ID	1-65535	Indicates the test ID of a performance object. Performance statistics of an E-LAN service are collected to check whether user packets are lost or delayed during transmission. NOTE: This parameter applies to RTN 950A and RTN 950N. A maximum of 32 test IDs can be set.
RMEP ID	1-8191	Indicates the ID of the remote maintenance association end point (RMEP).
Ingress Statistical Priority	0-7, -	Indicates the priority for collecting ingress performance statistics.
Egress Statistical Priority	0-7, -	Sets the egress priority for collecting performance statistics.
Backward MAC Address Self-Learning	Yes, No	Specifies whether a test ID sends SUM packets to the MAC address of the RMEP.
Forward MAC	For example: 00-E0-4C-90-66-25	Indicates the source MAC address of packets transmitted from an MEP to a maintenance entity (ME).
Forward MAC Address Self-Learning	Yes, No	Specifies whether a test ID only receives SUM packets and returns SUR packets.
Backward MAC	For example: 00-E0-4C-90-66-24	Indicates the source MAC address of packets transmitted from an RMEP to an ME. NOTE: The forward MAC address of an MEP is the backward MAC address of its RMEP.
Working Mode	-, Active, Passive	Indicates the working mode of a test ID. Performance statistics can be collected only when the test ID is in active mode.