On the topic of FEC mode....thought I'd share something I found a while back when testing the ACX5448 with an MX960
The ACX5448 40 gig interface defaulted to FEC74... the MX960 40 gig interface on an MPC7E-MRATE module default to FEC "NONE" 40 gig link would not come up agould@lab-960> show system information Model: mx960 Family: junos Junos: 17.4R2-S1.2 Hostname: lab-960 agould@eng-lab-5448> show system information Model: acx5448 Family: junos Junos: 18.3-20180825.3 Hostname: eng-lab-5448 After reconfig of FEC mode on ACX5448 to NONE, interface came up and we passed ping tests... agould@eng-lab-5448> show interfaces et-0/1/0 | grep "fec mode" Ethernet FEC Mode : NONE agould@lab-960> show interfaces et-0/1/0 | grep "fec mode" Ethernet FEC Mode : NONE [edit] root@eng-lab-5448# set interfaces et-0/1/0 gigether-options fec ? Possible completions: fec74 FEC74 enabled fec91 IEEE 802.3bj Clause 91, Reed-Solomon FEC (RS-FEC) none FEC disabled -Aaron _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
