6450-10 uplink

[Ninetoe]

i have a problem with a Omniswitch 6450-10 6.6.4.177.R01

im trying to use one of the STK A and STK B as uplink ports but i have no luck.

if i use the combo ports everything works ok, but i need more than 2 SFP interfaces.

show interface does show the SFP correctly but i dont get a link. move it to comboport and get link instantly.

what i did attempt according to my alcatel contact was to set the stack mode to standalone and reload, but no luck.

what am i missing guys ?

[silvio]

You have to set the switch in stack-mode:

Code: Select all

stack set slot 1 mode stackable

and the second slots manualy to id 2

regards
Silvio

[Ninetoe]

sorry late reply, i will try this out tomorow.

so if you set the switch in stack mode even if its standalone you can use STK A and STK B as standard uplink ports

but if its in standalone the ports dont work ?

sounds counterintuitive, but im pretty sure it will work because it must be the only thing i haven't tried yet

[Ninetoe]

this did not work.

my goal is not to setup a stack.
i only have 1 switch and i wish to use port 11 & 12 which are labeled 11/STK 12/STK
if i run stack set slot 1 mode stackable interface 11 and 12 dissappears and is only visible under show stack interfaces.

my problem is that i can't get link on port 11 and 12 with my SFP's but they work perfectly fine in 9 and 10

update :

the SFP is 10/100/1000 and it seems to only work in 1000 Full mode on port 11/12

so if i connected something with gigabit in the other end i got link.

that leads me to another interesting question with a different customer i have. i have the same problem there and the SFP is a 100mbit alcatel MM SFP. i cannot get link on that one either

so maybe the conclusion is that port 11/12 will only work in gigabit mode no matter what SFP is connected ?

[devnull]

No unusual that some SFP Ports only support 1000/10000 and not 100fx. Depends on the Phy that is built in there.

Would expect: works as designed, but have not found a documentation pointing that out.

[Ninetoe]

interesting thing was at the customer location with the 100mbit MM SFP, the interface shows 100mbit as the linkspeed (read from show interface) but i cannot get a link on it.

i think it would be better if it rather didnt accept the 100mbit SFP if it can only operate in gigabit :/

thanks for the help devnull and sorry for ranting

[devnull]

If unsure open a TAC case and keep us updated.
I am always interested in new knowledge!