No dice for either reed-solomon/fec91 or no error-correction encoding/fec none.
> On May 11, 2019, at 9:28 AM, Tim Jackson <jackson....@gmail.com> wrote: > > Check FEC settings. Try turning FEC on or off on both sides. > > Arista: (config-if)#error-correction encoding reed-solomon > > Juniper: set interfaces et-0/0/1 gigether-options fec fec91 > > On Sat, May 11, 2019, 6:32 AM Jason Lixfeld <jason-j...@lixfeld.ca > <mailto:jason-j...@lixfeld.ca>> wrote: > I had no idea auto-negotiation was still a thing with 100G, but in any event, > toggling auto negotiation didn’t work. > > > On May 11, 2019, at 2:21 AM, Eric Krichbaum <e...@telic.us > > <mailto:e...@telic.us>> wrote: > > > > I had a similar issue with 18.x and MX204. Did you try turning off > > auto-negotiation? > > > > set interfaces et-4/0/52 ether-options no-auto-negotiation > > > > I had a similar issue with QFX5100/EX4300 and 40G and this fixed the issue > > oddly enough. > > > > Eric > > > > -----Original Message----- > > From: juniper-nsp <juniper-nsp-boun...@puck.nether.net > > <mailto:juniper-nsp-boun...@puck.nether.net>> On Behalf Of Jason Lixfeld > > Sent: Friday, May 10, 2019 6:13 PM > > To: juniper-nsp <juniper-nsp@puck.nether.net > > <mailto:juniper-nsp@puck.nether.net>> > > Subject: [j-nsp] QSFP28 oddities between Arista and QFX after upgrade > > > > Hey, > > > > I have a QFX5110 in the lab which I upgraded from 17.something to 18.4 to > > resolve some ISIS weirdness. ISIS weirdness resolved, but now the > > previously working link between this QFX and an Arista 7280SR no longer > > comes up, despite light levels on both sides being within norms. I went > > from 18.4 to 19.1 just for the hell of it, and still no bueno. > > > > The QSFP28 in the QFX comes up if it’s looped to itself, as does the QSFP28 > > in the Arista. The Arista QSFP28 links to another Arista, or an MX204. > > The QFX QSFP28 links to the same MX204 as well (no other QSFP28 gear to > > test with otherwise) so it seems to be a weird compatibility issue between > > the Arista and the QFX? > > > > Does this sort of thing smell familiar to anyone? I’ve had pretty good > > luck with 100G compatibility in general so far, so I’m not overly familiar > > with any knobs to work around any compatibility issues that may creep up > > here or there, so happily accept some pointers if anyone has some clue. > > > > Thanks! > > _______________________________________________ > > juniper-nsp mailing list juniper-nsp@puck.nether.net > > <mailto:juniper-nsp@puck.nether.net> > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > <https://puck.nether.net/mailman/listinfo/juniper-nsp> > > > > > > --- > > This email has been checked for viruses by Avast antivirus software. > > https://www.avast.com/antivirus <https://www.avast.com/antivirus> > > > > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > <mailto:juniper-nsp@puck.nether.net> > https://puck.nether.net/mailman/listinfo/juniper-nsp > <https://puck.nether.net/mailman/listinfo/juniper-nsp> _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
