[j-nsp] Recommended firmware for QFX5100-48T

[Brent Jones]

You can set "ether-options autonegotiate" on XE interfaces, and it will do
just as you'd expect.
Firmware on QFX-5100-48T is bad in a lot of ways, but we've gotten them to
work mostly as youd want.
We are on 14.1X53-D35.3

    xe-0/0/0 {
        ether-options {
            auto-negotiation;
        }
        unit 0 {
            family ethernet-switching;
        }
    }

On Mon, Oct 10, 2016 at 1:34 PM, Dale Shaw <dale.shaw+j-nsp at gmail.com>
wrote:

> Hi all,
>
> On 11 Oct 2016 6:23 AM, "Graham Brown" <juniper-nsp at grahambrown.info>
> wrote:
> >
> > Hi Paul,
> >
> > Correct, just use 'replace pattern xe-0/0/0 with ge-0/0/0' etc and you
> > should be fine.
>
> I don't think that's how it works on qfx5100-48**T**
>
> It's more like copper based EX, where the interfaces are configured as
> ge-x/x/x even if they're plugged into something capable of only 10 or
> 100BASE-T operation.
>
> I seem to recall that there is a trick to making it work that involves
> autoneg but I'm currently using a tiny screen and an imaginary keyboard so
> digging up the details isn't possible right now.
>
> I'm certain that JTAC could help but I'll try to find something when I'm
> properly online.
>
> Cheers,
> Dale
>
> > On 11 October 2016 at 07:05, Paul S. <contact at winterei.se> wrote:
> >
> > > Hi Joel,
> > >
> > > Thanks for replying.
> > >
> > > What are the steps to configure the ports as "ge." Do I just get rid of
> xe
> > > from the config and replace it with ge for that port, that's all?
> > >
> > >
> > > On 10/11/2016 12:21 AM, joel jaeggli wrote:
> > >
> > >> On 10/10/16 7:34 AM, Paul S. wrote:
> > >>
> > >>> Hi folks,
> > >>>
> > >>> Are everyone running the JTAC recommended 14.1X53-D35.3 or have you
> > >>> found better stability at some newer revision?
> > >>>
> > >>> My problem is that the "tri state" 10g ports (copper) don't seem to
> > >>> want to run at anything less than 10g. It links up when connected to
> a
> > >>> 1g device, but still claims that the port is operating in 10g mode.
> > >>>
> > >>> The biggest issue I have is that if I assign a /30 to the p2p
> > >>> interfaces (between the qfx and any copper 1g device), my p2p latency
> > >>> is somewhere from 10 to 40ms.
> > >>>
> > >>> I asked around to see if there's any way to force the ports into 1g
> > >>> mode, but the "speed" knob is missing. I deliberately turned on
> > >>> auto-negotiation, does not seem to help.
> > >>>
> > >>> 802.3ad LAGs created using any of these links also claim to have
> > >>> speeds of 20g/40g when there's in reality only 4g of capacity.
> > >>>
> > >>> Can someone hit me with a clue stick? Thanks!
> > >>>
> > >> I presume that you're specifing the port config as ge-0/0/foo rather
> > >> than xe-0/0/foo
> > >>
> > >> joel@ show interfaces ge-0/0/46
> > >> Physical interface: ge-0/0/46, Enabled, Physical link is Up
> > >>    Interface index: 701, SNMP ifIndex: 616
> > >>    Description:
> > >>    Link-level type: Ethernet, MTU: 1514, Speed: 1000mbps, BPDU Error:
> > >> None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering:
> > >> Disabled, Flow control: Disabled, Auto-negotiation: Enabled,
> > >>    Remote fault: Online, Media type: Copper
> > >>    Device flags   : Present Running
> > >>    Interface flags: SNMP-Traps Internal: 0x4000
> > >>    Link flags     : None
> > >>    CoS queues     : 12 supported, 12 maximum usable queues
> > >>    Current address:
> > >>    Last flapped   : 2016-08-26 03:31:56 UTC (6w3d 19:46 ago)
> > >>    Input rate     : 0 bps (0 pps)
> > >>    Output rate    : 0 bps (0 pps)
> > >>    Active alarms  : None
> > >>    Active defects : None
> > >>    Interface transmit statistics: Disabled
> > >>
> > >>    Logical interface ge-0/0/46.0 (Index 563) (SNMP ifIndex 617)
> > >>      Flags: SNMP-Traps 0x4004000 Encapsulation: ENET2
> > >>      Input packets : 146287
> > >>      Output packets: 292513
> > >>      Protocol inet, MTU: 1500
> > >>        Flags: Sendbcast-pkt-to-re
> > >>        Addresses, Flags: Is-Preferred Is-Primary
> > >>          Destination:
> > >>
> > >> joel@> show chassis hardware
> > >> Hardware inventory:
> > >> Item             Version  Part number  Serial number     Description
> > >> Chassis                                                 QFX5100-48S-6Q
> > >> Pseudo CB 0
> > >> Routing Engine 0          BUILTIN      BUILTIN           QFX Routing
> > >> Engine
> > >> FPC 0            REV 05
>  QFX5100-48S-6Q
> > >>
> > >>      Xcvr 46               NON-JNPR          SFP-T
> > >>
> > >> joel@> show version
> > >> fpc0:
> > >> ------------------------------------------------------------
> > >> --------------
> > >> Hostname:
> > >> Model: qfx5100-48s-6q
> > >> JUNOS Base OS Software Suite [13.2X51-D38]
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-- 
Brent Jones
brent at brentrjones.com