H3C S7500E Series Command Reference Manual

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H3C S7500E Series Command Reference Manual Manual pdf 103 page image

3-15linktestSyntaxlinktest [ frame-number value | frame-size value | delay { on | off } | vlan-tag{ on [ vlan-priority value | vlan-id value ] | off } ] *ViewONU port viewDefault Level2: System levelParametersframe-number value: Specifies the number of test frames. The value argument ranges from 1 to 250and defaults to 20.frame-size value: Specifies the test frame size in bytes. The value argument ranges from 60 to 1514and defaults to 1000.delay: Specifies whether or not to enable delay test. The on keyword enables delay test. The offkeyword disables delay test.vlan-tag: Specifies whether or not to insert VLAN tags in test frames. The on keyword specifies toinsert VLAN tags in test frames. The off keyword specifies not to insert VLAN tags to test frames. Bydefault, test frames contain VLAN tags.vlan-priority value: Specifies the VLAN priority of test frames. The value argument ranges from 0 to 7,with value 0 representing the lowest priority, and value 7 representing the highest priority.vlan-id value: Specifies the VLAN ID of test frames. The value argument ranges from 1 to 4094 anddefaults to 1.DescriptionUse the linktest command to test the connectivity of the optical link between the OLT and the ONU.Make sure the ONU is online before you perform the link connectivity test.Examples# Set the number of test frames to 100 to test the link between the OLT and ONU 3/0/1:1. system-view[Sysname] interface onu 3/0/1:1[Sysname-Onu3/0/1:1] linktest frame-number 100It may affect data transmission, continue?[Y/N]:yMaximum delay(in TQ): 26408Mean delay(in TQ) : 24777Minimum delay(in TQ): 19922Sent frames : 100Received frames : 100Error frames : 0If The link is disconnected! is displayed, it means that the ONU sent some frames successfully butno correct frames are received, namely, the value of the Received frames field is 0.