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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