Chapter 13
| Basic Administration Protocols
Connectivity Fault Management
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◆ MD Name – Maintenance domain name. (Range: 1-43 alphanumeric
characters)
◆ MD Level – Authorized maintenance level for this domain. (Range: 0-7)
◆ MIP Creation Type – Specifies the CFM protocol’s creation method for
maintenance intermediate points (MIPs) in this domain:
â–
Default – MIPs can be created for any maintenance association (MA)
configured in this domain on any bridge port through which the MA’s VID
can pass.
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Explicit – MIPs can be created for any MA configured in this domain only
on bridge ports through which the MA’s VID can pass, and only if a
maintenance end point (MEP) is created at some lower MA Level.
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None – No MIP can be created for any MA configured in this domain.
Configuring Detailed Settings for a Maintenance Domain
◆ MD Index – Domain index. (Range: 1-65535)
◆ MEP Archive Hold Time – The time that data from a missing MEP is retained in
the continuity check message (CCM) database before being purged.
(Range: 1-65535 minutes; Default: 100 minutes)
A change to the hold time only applies to entries stored in the database after
this attribute is changed.
◆ MEP Fault Notify Lowest Priority – The lowest priority defect that is allowed
to generate a fault alarm. (Range: 1-6, Default: 2)
◆ MEP Fault Notify Alarm Time – The time that one or more defects must be
present before a fault alarm is issued. (Range: 3-10 seconds; Default: 3
seconds)
◆ MEP Fault Notify Reset Time – The time after a fault alarm has been issued,
and no defect exists, before another fault alarm can be issued. (Range: 3-10
seconds; Default: 10 seconds)
Web Interface
To create a maintenance domain:
1. Click Administration, CFM.
2. Select Configure MD from the Step list.
3. Select Add from the Action list.
4. Specify the maintenance domains and authorized maintenance levels (thereby
setting the hierarchical relationship with other domains).
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