[j-nsp] Rate selectability on MPC7E-MRATE

Alex D. listensammler at gmx.de
Wed May 6 09:07:21 EDT 2020


Okay, i tried with "number-of-ports" on pic-level instead. But
unfortunately, "number-of-sub-ports 2" is ignored now

fpc 5 {
     pic 0 {
         pic-mode 100G;
     }
     pic 1 {
         number-of-ports 5;
         port 1 {
             number-of-sub-ports 2;
         }
     }
}

Are 100g ports only recognised with a transceiver plugged in ? I am
missing the 100g ports in the output of "show int terse"

router# show interfaces terse | match "xe-5/1|et-5/1" | except 16386 |
except "\.0"
xe-5/1/0:0              up    down
xe-5/1/0:1              up    down
xe-5/1/0:2              up    down
xe-5/1/0:3              up    down
xe-5/1/1:0              up    down
xe-5/1/1:1              up    down
xe-5/1/1:2              up    down
xe-5/1/1:3              up    down
xe-5/1/2:0              up    down
xe-5/1/2:1              up    down
xe-5/1/2:2              up    down
xe-5/1/2:3              up    down
xe-5/1/3:0              up    up
xe-5/1/3:1              up    up
xe-5/1/3:2              up    up
xe-5/1/3:3              up    up
xe-5/1/4:0              up    down
xe-5/1/4:1              up    down
xe-5/1/4:2              up    down
xe-5/1/4:3              up    down


 >You can't oversubscribe the capacity of the MPC7 card.
Yes, i know. In my setup, i would use 14x 10G + 2x100G on pic 1 in
maximum which sums up to 240G, means no oversubscription.


Regards,
Alex


>> we have some MX-Routers (MX480 and MX960) with MPC7E-MRATE
>> linecards. As
>> far as i know, one PFE supports 240G each. Is it possible to use both
>> 100G ports and in addititon 14x 10G ports on a single PFE  ?
>> With the following configuration, i got an error "FPC 5 PIC 1 Invalid
>> port profile configuration":
> You can't oversubscribe the capacity of the MPC7 card. See
>
> https://www.juniper.net/documentation/en_US/junos/topics/topic-map/preventing-oversubscription-active-physical-ports.html#id-supported-active-physical-ports-for-configuring-rate-selectability-to-prevent
>
> for permitted port configurations. Note "Oversubscription of Packet
> Forwarding Engine capacity is not supported."
>
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
>



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