Web Management Guide-R05

Chapter 13 | Basic Administration Protocols
Connectivity Fault Management
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More detailed information about using this command for non-
revertive mode is included under the Revertive parameter. (See
the Command Usage section under “ERPS Ring Configuration”
on page 450.)
Web Interface
To block a ring port:
1. Click Administration, ERPS.
2. Select Configure Domain from the Step list.
3. Select Configure Operation from the Action list.
4. Select the domain name from the drop-down list.
5. Specify a Forced Switch, Manual Switch, or Clear operation.
6. Click Apply.
Figure 297: Blocking an ERPS Ring Port
Connectivity Fault Management
Connectivity Fault Management (CFM) is an OAM protocol that includes proactive
connectivity monitoring using continuity check messages, fault verification
through loop back messages, and fault isolation by examining end-to-end
connections between provider edge devices or between customer edge devices.
CFM is implemented as a service level protocol based on service instances which
encompass only that portion of the metropolitan area network supporting a
specific customer. CFM can also provide controlled management access to a
hierarchy of maintenance domains (such as the customer, service provider, and
equipment operator).
This switch supports functions for defining the CFM structure, including domains,
maintenance associations, and maintenance access points. It also supports fault
detection through continuity check messages for all known maintenance points,
and cross-check messages which are used to verify a static list of remote
maintenance points located on other devices (in the same maintenance