[j-nsp] MX204 port 1G

[aaron1 at gvtc.com]

I found a few things in my notes from when I deployed a few MX204's ...

Early on I had Junos: 17.4R2.4 and 1 gig SFP's wouldn't work... said UNSUPPORTED for 1 gig sfp's 4,5,7

root at lab-mx204> show chassis hardware
Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                removed           JNP204 [MX204]
Routing Engine 0          BUILTIN      BUILTIN           RE-S-1600x8
CB 0             REV 27   750-069579   removed           JNP204 [MX204]
FPC 0                     BUILTIN      BUILTIN           MPC
  PIC 0                   BUILTIN      BUILTIN           4XQSFP28 PIC
    Xcvr 0       REV 01   740-043308   removed           QSFP+-40G-LR4
  PIC 1                   BUILTIN      BUILTIN           8XSFPP PIC
    Xcvr 4                NON-JNPR     removed           UNSUPPORTED
    Xcvr 5                NON-JNPR     removed           UNSUPPORTED
    Xcvr 7       `        NON-JNPR     removed           UNSUPPORTED


I later upgraded to Junos: 18.4R1-S1.1 and then 1 gig sfp's worked, BUT one of them was still not working, and I removed it, so I don't know of there was a vendor sfp that didn't work at all or this one was broken

Good link... 
https://apps.juniper.net/home/port-checker/ 

- Here was my chassis port configs...  interestingly, you need to set the ports to 10g that you want to use as 1 gig

I tried to simply configure pic 0 port 0 as 40g and the pic’s stayed offline…even after restarting BOTH pics as is stated as required, they still stay offline… it wasn’t until I configure explicitly all ports, that they finally came online and then port to my upstream device came up also…

set chassis fpc 0 pic 0 port 0 speed 100g
set chassis fpc 0 pic 0 port 1 speed 100g
set chassis fpc 0 pic 0 port 2 speed 40g
set chassis fpc 0 pic 0 port 3 speed 40g

set chassis fpc 0 pic 1 port 0 speed 10g
set chassis fpc 0 pic 1 port 1 speed 10g
set chassis fpc 0 pic 1 port 2 speed 10g
set chassis fpc 0 pic 1 port 3 speed 10g
set chassis fpc 0 pic 1 port 4 speed 10g
set chassis fpc 0 pic 1 port 5 speed 10g
set chassis fpc 0 pic 1 port 6 speed 10g
set chassis fpc 0 pic 1 port 7 speed 10g


root> show interfaces terse | grep "^et|^xe|^ge"
et-0/0/0                up    down
et-0/0/1                up    down
et-0/0/2                up    down
et-0/0/3                up    down
xe-0/1/0                up    down
xe-0/1/1                up    down
xe-0/1/2                up    down
xe-0/1/3                up    down
xe-0/1/4                up    down
xe-0/1/5                up    down
xe-0/1/6                up    down
xe-0/1/7                up    down

for ports you want to use are 1 gig, do this...

config

set interfaces xe-0/1/4 gigether-options speed 1g
set interfaces xe-0/1/5 gigether-options speed 1g
set interfaces xe-0/1/6 gigether-options speed 1g
set interfaces xe-0/1/7 gigether-options speed 1g


root> show interfaces xe-0/1/4 | grep speed
  Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps,
  Speed Configuration: 1G

root> show interfaces xe-0/1/5 | grep speed
  Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps,
  Speed Configuration: 1G

root> show interfaces xe-0/1/6 | grep speed
  Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps,
  Speed Configuration: 1G

root> show interfaces xe-0/1/7 | grep speed
  Link-level type: Ethernet, MTU: 1514, MRU: 1522, LAN-PHY mode, Speed: 10Gbps,
  Speed Configuration: 1G


-Aaron