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Configuration Guide - Reliability

S7700 and S9700 V200R011C10

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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Configuring a MIP

Configuring a MIP

Context

MIPs can be automatically generated based on rules or manually created on interfaces. Table 9-12 describes the differences between the two MIP creation modes.

Table 9-12  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 9-13 describes the differences between MIP creation rules are of explicit, default, and none types.

Table 9-13  MIP creation rules

Version

Manual MIPs Exist on an Interface

Creation Rule

MEPs Are Configured on Low-Level MDs

MIPs are Created

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 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.

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Updated: 2019-09-23

N. documento: EDOC1000178318

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