I'm having problems with 2 devices not being able to negotiate gig ethernet, my ubuntu server auto negotiates 10MB full duplex no matter what the mikrotik advertises, however it auto negs 100/full connected to one of the 100 ports. Hard coding doesn't work (link goes down)
I have just bought a synology NAS which is also capable of gig speeds but auto negs at 100, haven't tried hard coding this yet just wondering if anyone has any suggestions, it's currently running 6.29 and was really hoping to get devices running at gig speeds.
Ta, Sam.
Re: Gigabit ethernet - RB2011UAS-2HnD
Am also experiencing same problem with the same router board. I have connected RB2011US to CCR1036-12G(core router) with fiber optic via sfp port. I have connected my laptop to RB2011(clients). On auto negotiation enabled, there is no link between the two router boards. When i disables auto mode, the link comes up but no traffic. Anyone with idea?
Re: Gigabit ethernet - RB2011UAS-2HnD
without auto negotiation the link is in "forced up" mode. that does not mean, the link is actually up. the thing is, that they are still not able to communicate with each other. the led is only lit cause you did not disable the port itself.When i disables auto mode, the link comes up but no traffic. Anyone with idea?
regarding 10/100/1000BaseT operation with copper SFPs:
this is something, that not every implementation support. copper SFPs, like cisco's GLC-T were first used in platforms which did only support 1000BaseT full duplex operation. that means no ordinary 10/100 device was able to talk with them.
i have an rb2011LS with a GLC-T inserted in it's SFP slot. the other side is a cisco eurodocsis3.0 modem with 10/100/1000BaseT support. they work together perfectly. but the mikrotik is only advertising 1000BaseT full-duplex, so the modem is only able to agree on that.
Code: Select all
[xxx@rb2011] /interface ethernet> monitor uplink
name: uplink
status: link-ok
auto-negotiation: done
rate: 1Gbps
full-duplex: yes
tx-flow-control: no
rx-flow-control: no
advertising:
link-partner-advertising:
sfp-rx-lose: no
Code: Select all
[xxx@rb2011] /interface ethernet> monitor ether2
;;; server
name: ether2
status: link-ok
auto-negotiation: done
rate: 1Gbps
full-duplex: yes
tx-flow-control: no
rx-flow-control: no
advertising: 10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full
link-partner-advertising: 10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-fullprobably the RB2011 does not have SFF8472 compliant DDM support.
Code: Select all
[xxx@crs125] /interface ethernet> monitor sfp1
;;; uplink
name: sfp1
status: link-ok
auto-negotiation: done
rate: 1Gbps
full-duplex: yes
tx-flow-control: no
rx-flow-control: no
advertising:
link-partner-advertising:
sfp-module-present: yes
sfp-rx-lose: no
sfp-connector-type: (unknown)
sfp-link-length-copper: 100m
sfp-vendor-name: Mikrotik
sfp-vendor-part-number: S-RJ01
sfp-vendor-serial: MT31126H2376
sfp-manufacturing-date: 13-12-14
sfp-wavelength: 65535nm