ZyXEL Communications XS3800-28 Cli Reference Manual page 51

Table 30 CFM Term Definitions
TERM
Loop Back Test
Link Trace Test
13.3 User Input Values
This section lists the common term definition appears in this chapter. Refer to User's Guide for more
detailed information about CFM.
Table 31 CFM command user input values
USER INPUT
mep-id
ma-index
md-index
mac-address
13.4 Command Summary
The following section lists the commands for this feature.
Table 32 CFM Command Summary
COMMAND
clear ethernet cfm linktrace
clear ethernet cfm mep-ccmdb
clear ethernet cfm mip-ccmdb
clear ethernet cfm mep-defects
ethernet cfm
Chapter 13 CFM Commands
DESCRIPTION
Loop Back Test (LBT) checks if an MEP port receives its LBR (Loop Back Response) from its
target after it sends the LBM (Loop Back Message). If no response is received, there might be a
connectivity fault between them.
Link Trace Test (LTT) provides additional connectivity fault analysis to get more information on
where the fault is. In the link trace test, MIP ports also send LTR (Link Trace Response) to
response the source MEP port's LTM (Link Trace Message). If an MIP or MEP port does not
respond to the source MEP, this may indicate a fault. Administrators can take further action to
check and resume services from the fault according to the line connectivity status report.
DESCRIPTION
This is the maintenance endpoint identifier (1~8191).
This is the maintenance association (MA) index number (1~4294967295).
This is the maintenance domain (MD) index number (1~4294967295).
This is the remote maintenance endpoint's MAC address or a virtual MAC
address assigned to a port.
A Switch has one or two MAC addresses only. If you do not use virtual MAC
addresses with CFM, all CFM ports will use the Switch's MAC address and
appear as one port. If you want unique CFM ports, you need to assign virtual
MAC addresses. If you use virtual MAC addresses, make sure that all virtual
MAC addresses are unique in both the Switch and the network to which it
belongs.
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DESCRIPTION
Clears the link trace database.
Clears the MEP CCM database.
Clears the MIP CCM database.
Clears the MEP-defects database.
Enables CFM on the Switch.
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