Slight correction: There are three states for the fpc/pic/port channel-speed setting <no value > - This auto negotiates (and very poorly at that) 10g - This forces the qfx to expect four 10G links. (i.e. xe-0/0/49:0, xe-0/0/49:1 etc.) disable-auto-speed-detection - This forces the qfx to expect a 40G link.
Jonathan ________________________________ From: juniper-nsp <[email protected]> on behalf of Jonathan Call <[email protected]> Sent: Thursday, February 8, 2018 2:28 PM Cc: [email protected] Subject: Re: [j-nsp] Channelizing a 40GbE port I thought that only controlled the overall speed of the port. But apparently it forces it to a breakout mode. Cool. Thanks. It seems a best practice is to disable auto-channelization and then force the 10g speed for any breakout? Jonathan ________________________________ From: Jason Healy <[email protected]> Sent: Thursday, February 8, 2018 1:29 PM To: Jonathan Call Cc: [email protected] Subject: Re: [j-nsp] Channelizing a 40GbE port On Feb 8, 2018, at 10:46 AM, Jonathan Call <[email protected]> wrote: > > Juniper has instructions on how to disable auto-channelization on the QFX > series, but there doesn't appear to be a way to force (or even encourage) > channelization. I have a qfx5100-48t with a QSFP-40G-SR in port 48 and a > MTP-4xLC breakout cable connected to a couple of servers. The qfx5100-48t > just can't/won't figure out the fact that I want it to channelize. This is ringing a bell... judging from the comment in my config, have you tried this: chassis { fpc 0 { pic 0 { /* Must explicitly set speed for fan-out interfaces to be recognized */ port 48 { channel-speed 10g; } } } } Jason _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp juniper-nsp Info Page - puck.nether.net<https://puck.nether.net/mailman/listinfo/juniper-nsp> puck.nether.net To see the collection of prior postings to the list, visit the juniper-nsp Archives. Using juniper-nsp: To post a message to all the list members ... _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
