[j-nsp] MX204 port 1G

Richard McGovern rmcgovern at juniper.net
Fri Oct 9 11:11:25 EDT 2020


If link is up, not L1 (speed negotiation) issue.  What do you get for output of show interface xe-0/1/4 extensive?

Richard McGovern
Sr Sales Engineer, Juniper Networks
978-618-3342

I’d rather be lucky than good, as I know I am not good
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On 10/9/20, 10:25 AM, "Łukasz Trąbiński" <lukasz at trabinski.net> wrote:


    I tried to play with almost all options in gigether-options section without any results. Port is UP but it still not working properly.

    admin at mx1> show configuration interfaces xe-0/1/4
    description TEST;
    gigether-options {
        no-flow-control;
        no-auto-negotiation;
        speed 1g;
    }
    unit 0 {
        family inet {
            address xx.xx.xx.xx/30;
        }
    }

    When i removed "speed 10g" from chassis section and bounced FPC port was DOWN.


    > Wiadomość napisana przez Tobias Heister <lists at tobias-heister.de> w dniu 09.10.2020, o godz. 14:44:
    >
    > Hi,
    >
    > Am 09.10.2020 um 13:12 schrieb Łukasz Trąbiński:
    >> In Lab I'm trying to set up 1G port on MX204.
    >
    > You might need to play around with autoneg options. we have a working 1G LX SFP running on 18.4R1-S7 on MX204
    >
    > in our case thats the gigether section:
    > gigether-options {
    >    no-flow-control;
    >    no-auto-negotiation;
    >    speed 1g;
    > }
    >
    > Not sure if the Flow Control stuff was mandatory, but without the no-auto-negotation the link was not useable. It might also help to check autoneg settings on the other end (if you have access).
    >
    > --
    > Kind Regards
    > Tobias Heister




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