I got the answer offline. On an MX or T-Series router for a 10GE interface, use the following commands:
start shell pfe network fpcX test xfp <index> laser off You can find the XFP index by doing "show xfp list" from the shell prompt. I haven't seen a method that works for SFP interfaces. For sonet interfaces, this hidden configuration is also an option: set interfaces so-0/0/0 sonet-options insert-los Thanks, -Martin From: Olson, Martin Sent: Tuesday, August 10, 2010 10:52 AM To: 'juniper-nsp' Subject: FPC shell command to disable the interface Tx laser I have a lab environment and I want to simulate a fiber cut, but I'm not able to physically pull the fibers. I know that if the CLI is used to disable an interface, the code has mechanisms that assist protocol convergence. I saw a JTAC engineer enter a command from the FPC shell that cuts the power to the laser of an interface, but I didn't write it down. Does anyone know how to abruptly shut down an interface like that? Thanks, -Martin _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp