20
• The port is configured as a MIP or an inward-facing MEP that can still receive and send CFD
messages except CCM messages.
For more information about the spanning tree feature, see Layer 2—LAN Switching Configuration Guide.
Configuring basic CFD settings
This section provides procedures for configuring basic CFD settings.
Enabling CFD
Enable CFD before you perform other configuration tasks.
To enable CFD on a device:
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Enable CFD.
cfd enable By default, CFD is disabled.
Configuring the CFD protocol version
Three CFD protocol versions are available: IEEE 802.1ag draft5.2 version, IEEE 802.1ag draft5.2 interim
version, and IEEE 802.1ag standard version.
Devices in the same MD must use the same CFD protocol version. Otherwise, they cannot exchange CFD
protocol packets.
If an MD is created by using the cfd md command or automatically generated by using the cfd
service-instance maid format command on a device, you cannot switch between the standard version
and draft5.2 version (or draft5.2 interim version). However, you can switch between the draft5.2 version
and draft5.2 interim version. This restriction does not apply to the device without an MD configured.
To configure the CFD protocol version:
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Configure the CFD protocol
version.
cfd version { draft5 | draft5-plus |
standard }
Optional.
By default, CFD uses the standard
version of IEEE 802.1ag.
Configuring service instances
Before configuring the MEPs and MIPs, 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.
To Next Page
Loading...
