H3C S5120-EI Series - Protocols and Standards; CFD Configuration Task List

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the TST frame, the target MEP determines the bit errors by calculating and comparing the content of the
TST frame. TST frames are unicast frames.
Protocols and standards
• IEEE 802.1ag, Virtual Bridged Local Area Networks Amendment 5: Connectivity Fault
Management
• ITU-T Y.1731, OAM functions and mechanisms for Ethernet based networks
CFD configuration task list
For CFD to operate properly, design the network by performing the following tasks:
• Grade the MDs in the entire network and define the boundary of each MD.
• Assign a name for each MD. Make sure the same MD has the same name on different devices.
• Define the MA in each MD according to the VLAN you want to monitor.
• Assign a name for each MA. Make sure the same MA in the same MD has the same name on
different devices.
• Determine the MEP list of each MA in each MD. Make sure devices in the same MA maintain the
same MEP list.
• At the edges of MD and MA, MEPs should be designed at the device port. MIPs can be designed
on devices or ports that are not at the edges.
Tasks Remarks
Configuring basic CFD
settings
Enabling CFD Required.
Configuring the CFD protocol version Optional.
Configuring
service instances
Creating a service instance
with the MD name
Required.
Perform either task.
Creating a service instance
without the MD name
Configuring MEPs Required.
Configuring MIP generation rules Required.
Configuring CFD
functions
Configuring CC on MEPs Required.
Configuring LB on MEPs Optional.
Configuring LT on MEPs Optional.
Configuring AIS Optional.
Configuring LM Optional.
Configuring one-way DM Optional.
Configuring two-way DM Optional.
Configuring TST Optional.
Typically, a port blocked by the spanning tree feature cannot receive or send CFD messages except in the
following cases:
• The port is configured as an outward-facing MEP.