Configuring Service Instances; Configuring Meps - H3C S5820X SERIES High Availability Configuration Manual

Configuring service instances

Before configuring the MEPs and MIPs, you must first configure service instances. A service instance is a
set of service access points (SAPs), and belongs to an MA in an MD.
A service instance is indicated by an integer to represent an MA in an MD. The MD and MA define the
level and VLAN attribute of the messages handled by the MPs in a service instance.
Service instances fall into two types:
Service instance with the MD name, which takes effect in any version of CFD.
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Service instance without the MD name, which takes effect in only CFD IEEE 802.1ag.
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You can create either type of service instance as needed.
Creating a service instance with the MD name
To create a service instance with the MD name, create the MD and MA for the service instance first.
Follow these steps in strict order to configure a service instance with the MD name:
To do...
Enter system view
Create an MD
Create an MA
Create a service instance with the
MD name
CAUTION:
You must create the MD, MA, and service instance by strictly following the order stated in the table.
Creating a service instance without the MD name
When you create a service instance without the MD name, the system automatically creates the MA and
MD for the service instance.
Follow these steps to create a service instance without the MD name:
To do...
Enter system view
Create a service instance without
the MD name

Configuring MEPs

CFD is implemented through various operations on MEPs. As a MEP is configured on a service instance,
the MD level and VLAN attribute of the service instance become the attribute of the MEP.
Use the command...
system-view
cfd md md-name level level-value
cfd ma ma-name md md-name vlan
vlan-id
cfd service-instance instance-id md
md-name ma ma-name
Use the command...
system-view
cfd service-instance instance-id
maid format { icc-based ma-name
| string ma-name } level level-value
vlan vlan-id
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Remarks
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Required
Not created by default.
Required
Not created by default.
Required
Not created by default.
Remarks
—
Required
Not created by default.