Use this command to set whether the creation of maintenance intermediate-point (MIP) half function (MHF) is allowed for the current context.
| default | Specifies that an MHF can be created for this MD or MA context. |
| explicit | Specifies that an MHF can be created for this MD or MA context, only if a MEP exists at the next lower MD level. |
| none | Specifies that MHF creation is not allowed for the MD or MA context. Defaults to none. |
| defer | Specifies that in a MD default VLAN service context, the MHF creation defers to the system default MD configuration, or in MA component context, the MHF creation defers to the configuration for the MD in which this MA component resides. |
MHF creation is not allowed.
Default MD Configuration mode. Maintenance Domain Configuration mode. Maintenance Association Component Configuration mode.
A Maintenance Intermediate Point (MIP) resides in the interior of an MD. MIPs are created on ports that reside along the path between Maintenance End Points (MEPs). The MIP supplements the function to the MEPs of the domain. MIPs passively collect information by snooping the continuity check messages (CCMs) that pass through them. The information is collected in a database. These MIP databases act as highway “mile-markers” along the continuity check message path. MIPs may respond to loopback and linktrace requests received from MEPs in its MD.
The defer option is only valid in a VLAN system default or MA component configuration context.
The “no” form of this command resets the MHF creation setting to the default value of none.
This example shows how to set the system default maintenance domain value to allow an MHF to be created only when a MEP in the next lowest MD exists:
System(rw-config)->cfm default-md default System(su-config-cfm-default-md-def)->mhf-creation explicit System(su-config-cfm-default-md-def)->
This example shows how to set MHF creation for the myMA1 MA component context to defer to the myMD1 MHF creation setting:
System(rw-config)->cfm md string-name myMD1 System(su-config-cfm-md.1)->ma string-name myMA1 System(su-config-cfm-ma.1)->ma-comp System(su-config-cfm-macomp)->mhf-creation defer
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