Installation and User Manual
EtherHaul
1200™
Page 88
EH-INST-02, Issue 4.0
7.2.1.4
Fault Notification and Recovery
When an MEP detects a connectivity fault in its in its MA (CCM is not received or an
invalid CCM is received), it sends an SNMP trap and enters a log entry. The network
administrator responds to a fault notification to categorizing, isolating, and resolving
the connectivity fault. For information on troubleshooting procedures, refer to
EtherHaul Diagnostics
on page 153.
7.2.2
Working with Maintenance Domains
A Maintenance Domain (MD) is a part of a network that is controlled by a single
operator and used to support the connectivity between service access points. Each of
the eight hierarchical Maintenance Domain Levels (MD Level) supports OAM capabilities
independently.
Use the following command to set an MD. Note that the
name
attribute must be unique
in the system.
set
cfm-md <md-idx> [format <md-name-format>] [name <md-name>]
[level <md level>] [mhf-creation <mhf creation>] [mhfid-permission
<mhf permission>]
For example, the following command sets the customer domain at level 2.
set cfm-md 2 name string Customer level 2
Use the following command to display a particular MD or all MDs.
show cfm-md {<md-idx-list> | all} {format | name | level | mhf-
creation | mhfid-permission | info}
Use the following command to clear a particular MD or all MDs:
clear cfm-md {<md-idx-list> | all}
For example, the following command clears all the MDs in the system.
clear cfm-md all
Figure
7-8 CFM MD Setup
Table
11-9
on page 196 lists and describes the MD attributes.
