H3C SR6600 Command Reference Manual

Also see for SR6600 SPE-FWM: Configuration guide Configuration guide Configuration guide Command reference Command reference

5-36generate: Generates and sends a specific type of FEAC signals. Specify ds3-los for DS3 LOS, ds3-aisfor DS3 AIS, ds3-oof for DS3 out of frame (OOF), ds3-idle for DS3 idle, and ds3-eqptfail for DS3equipment failure. By default, FEAC signal sending is disabled.loopback: Sends a specific type of loopback code for activating far-end line loopback with the ds3-linekeyword or payload loopback with the ds3-payload keyword. By default, loopback code sending isdisabled.DescriptionUse the t3 set feac command to enable FEAC channel signal detection or FEAC signal sending on thespecified T3 interface.Use the undo t3 set feac command to remove the current FEAC settings.By default, FEAC signal detection and sending are disabled on a T3 channel.FEAC is a channel formed by using the third C-bit in the first subframe in C-bit framing. It is used totransmit alarm state signals for the line test purpose or to transmit loopback control code for activatingor deactivating far-end loopback during a loopback test.According to ANSI T1.107a, the framing format used by FEAC channels is bit oriented protocol (BOP).At the startup of your router, FEAC signal detection is enabled while FEAC signal sending is disabled ona T3 interface.Note that, you need to disable FEAC signal detection before configuring far-end loopback to preventloopback deadlock, which may happen when the local end enables loopback after detecting theloopback code sent back by the far end.Examples# Enable FEAC signal detection on T3 channel 1 of interface CPOS 1/0/0. system-view[Sysname] controller cpos 1/0/0[Sysname-Cpos1/0/0] t3 1 feac detect# Enable T3 channel 1 of CPOS 1/0/0 to generate and send DS3 LOS alarm signals. system-view[Sysname] controller cpos 1/0/0[Sysname-Cpos1/0/0] t3 1 feac generate ds3-los# Enable T3 channel 1 of interface CPOS 1/0/0 to send loopback code to the far end to place the far-endin a line loopback. system-view[Sysname] controller cpos 1/0/0[Sysname-Cpos1/0/0] t3 1 feac generate loopback ds3-linet3 set frame-formatSyntaxt3 t3-number set frame-format { c-bit | m23 }undo t3 t3-number set frame-formatViewCPOS interface view