21• Service instance without the MD name, which takes effect in only CFD IEEE 802.1ag.You can create either type of service instance as needed.Creating a service instance with the MD nameTo create a service instance with the MD name, create the MD and MA for the service instance first.To configure a service instance with the MD name:Step Command Remarks1. Enter system view. system-view N/A2. Create an MD. cfd md md-name level level-value By default, no MD is created.3. Create an MA. cfd ma ma-name md md-name vlanvlan-id By default, no MA is created.4. Create a service instance withthe MD namecfd service-instance instance-id mdmd-name ma ma-nameBy default, no service instance withthe MD name is created.Creating a service instance without the MD nameWhen you create a service instance without the MD name, the system automatically creates the MA andMD for the service instance.To create a service instance without the MD name:Step Command Remarks1. Enter system view. system-view N/A2. Create a service instancewithout the MD name.cfd service-instance instance-id maidformat { icc-based ma-name | stringma-name } level level-value vlan vlan-idBy default, no serviceinstance without the MDname is created.Configuring MEPsCFD is implemented through various operations on MEPs. A MEP is configured on a service instance, sothe MD level and VLAN attribute of the service instance become the attribute of the MEP.Before creating MEPs, configure the MEP list. A MEP list is a collection of local configurable MEPs in anMA and the remote MEPs to be monitored.To configure a MEP:Step Command Remarks1. Enter system view. system-view N/A2. Configure a MEP list. cfd meplist mep-listservice-instance instance-idBy default, no MEP list isconfigured.To create a MEP, the MEP ID mustbe included in the MEP list of theservice instance.3. Enter Layer 2 Ethernet interfaceview.interface interface-typeinterface-number N/A
