*In EX4650 switch 1G SFP is detected while checking in "show chassis hardware"

*But the port is down and it is not showing in "show interface terse"

*We tried to manually configured the speed. in port 46. But it is not working.

NON WORKING EXAMPLE

{master:0}[edit]

labroot@SWI-COR-B1C1-4# set chassis fpc 0 pic 0 port 46 speed ?   

No valid completions

*If we try to configure the speed manually for port 46. we will get the above error.

WORKING EXAMPLE

{master:0}[edit]

labroot@SWI-COR-B1C1-4# set chassis fpc 0 pic 0 port 44 speed ?

Possible completions:

 1G                  1GE-Gigabit Ethernet

 25g                 Sets the interface mode to 25Gbps

*if we try to configure manually for port 44, it will work.

Under the chassis > fpc 0 > pic 0 stanzas, we configured speeds for the ports. However, note that the ports configurations above are broken up every four ports; this is because for the 48 SFP+ ports, port speeds are configured in groups of four (quads), and each quad can be 1, 10, or 25 Gbps. Here’s a visual of the quads:

Each quad is colorized above (port/quad 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44)

Therefore, in order to configure 1 Gbps interfaces on an EX4650 switch , you need to manually set the configuration speed in the chassis configuration.

*Conversion has been done only on these ports on each quads (0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44)

*For example:

If we are configuring speed in port 0, it will get automatically assigned to port 0,1,2,and 3. because these ports are in same quad, and the speed should be same for all the ports in 1 quads.

*We can't assign different speed to different port in same quad.

*In below example, we configured speed for port 44 and it is assigned to all the ports in that quad. (44,45,46,47)

labroot@SWI-COR-B1C1-4# show | compare                          

[edit chassis fpc 1 pic 0]

+    port 44 {

+        speed 1G;

+    }

{master:0}[edit]

labroot@SWI-COR-B1C1-4# commit 

localre: 

configuration check succeeds

fpc1: 

[edit chassis fpc 1 pic 0 port 44 speed]

 'speed 1G'

   warning: 1g config will be applied to ports 44 to 47

localre: 

commit complete

*This warning shows because the speed was already configured in port 44.