Configuring Layer 3 Connectivity Detection 867[SW7750] pause-protection enable slot 7Configuring Layer 3ConnectivityDetectionIntroduction to layer 3connectivity detectionThe function that detects layer 3 connectivity is implemented as follows. Localdevices send ARP request packets continuously to the IP addresses of the devicesto be detected. Users can then locate, solve, and log link problems by monitoringthe peer devices through the received ARP response packets.n This function requires no Layer 3 device existing between the local peer and theremote peer.Layer 3 ConnectivityDetection ConfigurationTaskn Before performing this configuration, make sure the physical link between thelocal peer and the remote peer is correct, and the related VLAN interfaces areassigned with correct IP addresses.Layer 3 ConnectivityDetection ConfigurationExampleNetwork requirements■ The physical link between the local peer and the remote peer is correct. Thelocal peer port that is used to connect is Ethernet4/0/1.■ The IP address of the lay 3 interface of the remote peer is 1.1.1.1.Configuration procedure# Enter system view. system-view[SW7750]# Enter Ethernet interface view.[SW7750] interface Ethernet 4/0/1# Enable Layer 3 connectivity detection on Ethernet4/0/1 interface and specify theIP address of the device (1.1.1.1) to be detected.Table 686 Configure Layer 3 connectivity detectionOperation Command DescriptionEnter system view system-view -Enter Ethernet interface view interface interface-typeinterface-number-Enable Layer 3 connectivitydetection functionuplink monitor ip ip-address RequiredDisplay information about Layer 3connectivity between the localdevice and the remote device.display uplink monitor OptionalYou can execute thedisplay command in anyview.
