Table of Contents 1 Monitor Link Configuration Commands 1-1

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1 Table of Contents 1 Monitor Link Configuration Commands 1-1 Monitor Link Configuration Commands 1-1 display monitor-link group 1-1 monitor-link group 1-2 port 1-2 port monitor-link group 1-3 i

2 1 Monitor Link Configuration Commands Monitor Link Configuration Commands display monitor-link group display monitor-link group { group-id all } Any view 1: Monitor level all: Specifies all monitor link groups. Use the display monitor-link group command to display information about the specified or all smart link groups. # Display information about monitor link group 1. <Sysname> display monitor-link group 1 Monitor link group 1 information: Group status: DOWN Last-up-time: 16:37: /4/21 Last-down-time: 16:38: /4/21 Member Role Status Ethernet1/0/1 UPLINK DOWN Ethernet1/0/2 DOWNUPLINK DOWN Table 1-1 display monitor-link group command output description Field Group status Last-up-time Last-down-time Monitor link group state, which can be up or down Last time when the monitor link group was up Last time when the monitor link group was down 1-1

3 Field Member Role Status Member ports of the monitor link group Port role, which can be uplink or downlink Member link state, which can be up or down monitor-link group monitor-link group group-id undo monitor-link group group-id System view Use the monitor-link group command to create a monitor link group and enter monitor link group view. If the specified monitor link group already exists, you enter monitor link group view directly. Use the undo monitor-link group command to remove a monitor link group. Related commands: port monitor-link group, port. # Create monitor link group 1. [Sysname-mtlk-group1] port port interface-type interface-number { uplink downlink } undo port interface-type interface-number Monitor link group view 1-2

4 interface-type interface-number: Port type and port number. uplink: Specifies an uplink port. downlink: Specifies a downlink port. Use the port command to assign a port to the monitor link group. Use the undo port command to remove a port from the monitor link group. Both Ethernet ports and Layer-2 aggregate interfaces can be assigned to a monitor link group. A port can be assigned to only one monitor link group. Alternatively, you can assign a port to a monitor link group with the port monitor-link group command in Ethernet interface view or Layer-2 aggregate interface view. Related commands: port monitor-link group. # Configure member ports for monitor link group 1. [Sysname-mtlk-group1] port ethernet 1/0/1 uplink [Sysname-mtlk-group1] port ethernet 1/0/2 downlink port monitor-link group port monitor-link group group-id { uplink downlink } undo port monitor-link group group-id Ethernet interface view, Layer-2 aggregate interface view uplink: Specifies an uplink port. 1-3

5 downlink: Specifies a downlink port. Use the port monitor-link group command to assign the port to the specified monitor link group. Use the undo port monitor-link group command to remove the port from the specified monitor link group. Both Ethernet ports and Layer-2 aggregate interfaces can be assigned to a monitor link group. A port can be assigned to only one monitor link group. Alternatively, you can assign a port to a monitor link group with the port command in monitor link group view. Related commands: port. # Configure Ethernet 1/0/1 as an uplink port of monitor link group 1. [Sysname-mtlk-group1] quit [Sysname] interface ethernet 1/0/1 [Sysname-Ethernet1/0/1] port monitor-link group 1 uplink 1-4