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Common Operation Guide

CloudEngine 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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Configuring Monitor Link to Implement Association Between Uplink and Downlink Interfaces

Configuring Monitor Link to Implement Association Between Uplink and Downlink Interfaces

As shown in Figure 33-2, SwitchC is connected to user networks and is dual-homed to SwitchA and SwitchB, which are connected to the backbone network.

A monitoring mechanism is required to prevent service interruption caused by uplink failures. If an uplink fails, the downlinks can rapidly detect the failure and trigger link switching immediately to minimize the service interruption time.

Figure 33-2  Combination of Smart Link and Monitor Link

# Configure a Monitor Link group on SwitchA and configure the Smart Link group as the uplink.

<HUAWEI> system-view
[~HUAWEI] sysname SwitchA
[*HUAWEI] commit
[~SwitchA] monitor-link group 1
[*SwitchA-mtlk-group1] smart-link group 1 uplink
[*SwitchA-mtlk-group1] port 10ge 2/0/1 downlink 1
[*SwitchA-mtlk-group1] commit

# Configure a Monitor Link group on SwitchB.

<HUAWEI> system-view
[~HUAWEI] sysname SwitchB
[*HUAWEI] commit
[~SwitchB] monitor-link group 2
[*SwitchB-mtlk-group2] port 10ge 1/0/1 uplink
[*SwitchB-mtlk-group2] port 10ge 2/0/1 downlink 1
[*SwitchB-mtlk-group2] commit
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Updated: 2018-10-08

Document ID: EDOC1000102369

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