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Configuration Guide - Reliability

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, EFM Configuration, and CFM Configuration.
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Creating an MD

Creating an MD

Context

IEEE Standard 802.1ag-2007 defines four formats for MDs:
  • no-md-name: The MAID field in outgoing CCMs does not carry the MD name.

  • dns-md-format-name: MD information in the MAID of outgoing CCMs is a character string that is obtained from the DNS text.

  • mac-md-format-name: MD information in the MAID of outgoing CCMs consists of the 6-byte MAC address plus two-byte integer in the range of 0 to 65535.

  • string: MD information in the MAID of outgoing CCMs is a character string.

Perform the following operations on the device where Ethernet CFM needs to be configured.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run cfm md md-name [ format { no-md-name | dns dns-md-format-name | mac-address mac-md-format-name | string string-md-format-name } ] [ level level ]

    An MD is created and the MD view is displayed.

    By default, no MD is created on the device. By default, the level of a created MD is 0, which is the lowest level.

    Only IEEE Standard 802.1ag-2007 supports format, no-md-name, dns dns-md-format-name, mac-address mac-md-format-name, and string string-md-format-name.

    To create multiple MDs, repeat step 2. A maximum of 64 MDs can be created on a device.

    NOTE:

    When 802.1ag packets in a low-level MD enter a high-level MD, the 802.1ag packets will be discarded. 802.1ag packets in a high-level MD can traverse a low-level MD. 802.1ag packets in an MD cannot traverse the MD of the same level.

  3. Run commit

    The configuration is committed.

Translation
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Updated: 2019-05-08

Document ID: EDOC1100004359

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