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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.
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Example for Configuring MAD in Relay Mode

Example for Configuring MAD in Relay Mode

Networking Requirements

As shown in Figure 8-35, SwitchA and SwitchB set up a CSS and connect to the upstream and downstream devices through Eth-Trunks.

MAD can be used to detect dual master switches with the same configuration on the network to reduce the impact of a CSS split on the network.

Figure 8-35  Networking of MAD in relay mode

Configuration Roadmap

The configuration roadmap is as follows:
  1. Configure SwitchC as the relay agent and configure MAD in relay mode on Eth-Trunk member ports connected to SwitchC.

  2. On SwitchC, configure the MAD relay function so that MAD packets can be forwarded through the Eth-Trunk.

Procedure

  1. On the CSS, configure MAD in relay mode for the inter-device Eth-Trunk.

    <HUAWEI> system-view
    [HUAWEI] interface eth-trunk 1
    [HUAWEI-Eth-Trunk1] trunkport gigabitethernet 1/2/0/5
    [HUAWEI-Eth-Trunk1] trunkport gigabitethernet 2/9/0/5
    [HUAWEI-Eth-Trunk1] mad detect mode relay
    [HUAWEI-Eth-Trunk1] quit
    [HUAWEI] quit

  2. Configure the MAD relay function on SwitchC.

    <HUAWEI> system-view
    [HUAWEI] sysname SwitchC
    [SwitchC] interface eth-trunk 1
    [SwitchC-Eth-Trunk1] trunkport gigabitethernet 1/0/19
    [SwitchC-Eth-Trunk1] trunkport gigabitethernet 1/0/21
    [SwitchC-Eth-Trunk1] mad relay
    [SwitchC-Eth-Trunk1] quit
    [SwitchC] quit

  3. Verify the configuration.

    # Check detailed MAD configuration of the CSS.

    <HUAWEI> display mad verbose
    Current MAD domain: 0
    Current MAD status: Detect
    Mad direct detect interfaces configured:
    Mad relay detect interfaces configured:
     Eth-Trunk1
    Excluded ports(configurable):
    Excluded ports(can not be configured):
     40GE1/4/0/0
     40GE1/4/0/1
     40GE1/5/0/0
     40GE1/5/0/1
     40GE2/7/0/1
     40GE2/7/0/0
     40GE2/11/0/0
     40GE2/11/0/1
    

    # Check MAD relay configuration on SwitchC.

    <SwitchC> display mad proxy
    Mad relay interfaces configured:
     Eth-Trunk1
    

Configuration Files

  • CSS configuration file

    #
    interface GigabitEthernet1/2/0/5
     eth-trunk 1
    #
    interface GigabitEthernet2/9/0/5
     eth-trunk 1
    #
    interface Eth-Trunk1
     mad detect mode relay
    #
    return
  • SwitchC configuration file

    #
    sysname SwitchC
    #
    interface GigabitEthernet1/0/19
     eth-trunk 1
    #
    interface GigabitEthernet1/0/21
     eth-trunk 1
    #
    interface Eth-Trunk1
     mad relay
    #
    return
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Updated: 2019-08-21

Document ID: EDOC1000142080

Views: 109780

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