Configuring a MIP

Context

MIPs can be automatically generated based on rules or manually created on interfaces. Table 1 describes the differences between the two MIP creation modes.

**Table 1** Differences between MIP creation modes
MIP Creation Mode	Supported Version	Description
Automatic creation	IEEE 802.1ag Draft 7 and IEEE Standard 802.1ag-2007	The differences between MIP creation rules in the two versions are as follows: According to IEEE 802.1ag Draft 7, MIPs are automatically created based on the interface. According to IEEE Standard 802.1ag-2007, MIPs are automatically created based on the MD or default MD. After a MIP creation rule is configured, the device automatically generates a MIP based on the rule. Configuring creation rules is complex, but properly configured rules ensure correct MIP settings.
Manual configuration	IEEE Standard 802.1ag-2007	The MIP level must be set. Manually configured MIPs are preferable to automatically generated MIPs. Although configuring MIPs manually is easy, managing many manually configured MIPs is difficult and errors may occur.

Automatic MIP creation rules are of explicit, default, and none types. Table 2 describes the differences between MIP creation rules are of explicit, default, and none types.

**Table 2** MIP creation rules
Version	Manual MIPs Exist on an Interface	Creation Rule	MEPs Are Configured on Low-Level MDs	MIPs are Created
IEEE 802.1ag/Draft 7.0	–	Default	No	Yes
		Explicit	Yes	Yes
		None	–	–
IEEE Std 802.1ag-2007	Yes	–	–	No
	No	Default	No	Yes
		Explicit	Yes	Yes
		None	–	–

After a MIP creation rule is configured, either of the following operations triggers MIP creation or deletion:

Enable or disable CFM.
The MIP creation rule changes.

Create MIPs manually or automatically based on the network planning.

Procedure

Manually creating a MIP
1. Run system-view
  
  The system view is displayed.
2. Run interface interface-type interface-number
  
  The interface view is displayed.
3. Run cfm mip level level-value
  
  A MIP is created manually.
Creating a MIP automatically based on the MIP creation rule
1. Run system-view
  
  The system view is displayed.
2. Run the following commands as required.
  - Configure a MIP creation rule in accordance with IEEE 802.1ag Draft 7.
    
    Run mip create-type { default | explicit | none } [ interface interface-type interface-number ]
    
    A MIP creation rule in accordance with IEEE 802.1ag Draft 7 is configured.
  - Configure a MIP creation rule in accordance with IEEE Standard 802.1ag-2007 in the MD view or the default MD view.
    1. Run cfm md md-name
      
      The MD view is displayed.
      
      Or run cfm default md [ level level ]
      
      The default MD view is displayed.
    2. Run mip create-type { default | explicit | none }
      
      A MIP creation rule in accordance with IEEE Standard 802.1ag-2007 is configured.