Thanks. The model is CCR1009-8G-1S-1S+. I'm getting some additional strange behavior. If I disable auto negotiation, the link light comes on using the SFP+ port. However, the other end (a Cisco Nexus switch) still shows the interface as down. The standard sfp port claims to get a link with auto negotiation active, but shows "failed" in the auto negotiation field. Any way it is configured, this also shows down on the Cisco. I'm using generic optics right now, but we've gotten the same result using Cisco optics at both ends. I'll have to try changing the rate select and rebooting next.
On Thursday, February 19, 2015, Erich Kaiser <er...@northcentraltower.com> wrote: > [image: Inline image 1] > > Try setting it to low and reboot also can try setting speed/duplex 1000FDX > I have heard what George is talking about as well, what model is it that > you are using? > > Erich Kaiser > North Central Tower Consulting > er...@northcentraltower.com > <javascript:_e(%7B%7D,'cvml','er...@northcentraltower.com');> > Office: 630-621-4804 > Cell: 630-777-9291 > > On Thu, Feb 19, 2015 at 5:36 PM, Jason McKemie < > j.mcke...@veloxinetbroadband.com > <javascript:_e(%7B%7D,'cvml','j.mcke...@veloxinetbroadband.com');>> wrote: > >> So disable auto negotiation or just set it to only advertise 1000M full? >> I only see 10Gbps as being an option when auto negotiation is disabled. >> >> On Thursday, February 19, 2015, Erich Kaiser <er...@northcentraltower.com >> <javascript:_e(%7B%7D,'cvml','er...@northcentraltower.com');>> wrote: >> >>> Change speed setting inside interface and reboot the router. >>> >>> Erich Kaiser >>> North Central Tower Consulting >>> er...@northcentraltower.com >>> Office: 630-621-4804 >>> Cell: 630-777-9291 >>> >>> On Thu, Feb 19, 2015 at 5:04 PM, Jason McKemie < >>> j.mcke...@veloxinetbroadband.com> wrote: >>> >>>> Can anyone think of any reason the same SFP/fiber will link up when >>>> plugged into a SFP port on a CCR, but will never establish a link when >>>> plugged into a SFP+ port? >>> >>> >>> >
