I have the same problem on QFX5120 which is running the new Trident chipset. Model: qfx5120-48y-8c Junos: 18.4R1-S2.4
I have some 1310nm LR and different wavelength 1G SFP's from FS.com. I tried setting autoneg on and off under etheroptions on juniper side, aswell as manual speed etc.. None of the config combinations I tried on Juniper side got auto negotiation working for me. However, Juniper side always reported link as UP, but remote DOWN. The solution for me was to set autoneg=no on remote side (Mikrotik Routerboard). Olof ________________________________ From: juniper-nsp <[email protected]> on behalf of Timothy Creswick <[email protected]> Sent: Friday, June 28, 2019 9:22 PM To: Juniper List Subject: Re: [j-nsp] Link establishment issues with 1Gbps SX/LX SFPs on QFX5110 For anyone interested in this, JTAC released to us 3.5R1-S4.1 for the satellite devices (I don't believe this will be generally available until tomorrow). This addresses the issue and confirms that there were 2 or 3 different PRs relating to the Broadcom chipset being incorrectly programmed by Junos. Some output, testing with a variety of 1Gbps optics (coded SX, LX, uncoded BX, LX and SX). > show chassis hardware satellite Hardware inventory: Item Version Part number Serial number Description FPC 100 REV 27 650-061152 WS37183----X QFX5110-48S-4C PIC 0 REV 27 650-061152 WS37183----X 48x10G-4x100G Xcvr 0 850nm 740-011782 F----------X SFP-SX Xcvr 2 1310nm 740-011783 F----------X SFP-LX10 Xcvr 4 NON-JNPR VS51208----X SFP-1000BASE-BX10-D Xcvr 6 NON-JNPR VS60930----X SFP-LX10 Xcvr 8 NON-JNPR VS50930----X SFP-SX > show interfaces ge-100/0/[02468] terse Interface Admin Link Proto Local Remote ge-100/0/0 up up ge-100/0/2 up up ge-100/0/4 up up ge-100/0/6 up up ge-100/0/8 up up > show configuration interfaces ge-100/0/0 { unit 0; } ge-100/0/2 { unit 0; } ge-100/0/4 { unit 0; } ge-100/0/6 { unit 0; } ge-100/0/8 { unit 0; } # bcmshell ps 1,3,5,7,9 HW (unit 0) ena/ speed/ link auto STP lrn inter max loop port link duplex scan neg? state pause discrd ops face frame back ge0( 1) up 1G FD HW Yes Forward None F GMII 1518 ge1( 3) up 1G FD HW Yes Forward None F GMII 1518 ge2( 5) up 1G FD HW Yes Forward None F GMII 1518 ge3( 7) up 1G FD HW Yes Forward None F GMII 1518 ge4( 9) up 1G FD HW Yes Forward None F GMII 1518 We note that now changing the auto-negotiate state in Junos correctly updates the underlying chipset and link negotiation works correctly. Interface is shown as GMII which we understand to be correct also. All-in, pretty terrible that - as far as we can tell - 1Gbps ports have *never worked* on QFX5110 properly in all the four basic combinations (i.e. SX and LX at both auto- and no-auto negotiation) until this release. Quite how Juniper have been shipping the hardware for so long in that state is a mystery to me. Tim _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
