All,
I've been playing with some Nexus gear in our lab and I'm confused
on a physical layer issue. When defining the FEX, you define the
max-links. Originally I set it to four and then built my port channel.
Of course, it gave me an error
ERROR: FEX max-links not configured to be one
Which after googling and thinking thru makes sense. I'm defining the
ports as a port channel so I need a max-links of "one". Not "four" (as
in four wires between the N5K and N2K). That makes sense. What I'm
struggling with is in what scenario I would NOT create a port channel.
When would I just assign the physical links to the FEX and not build an
etherchannel for them? Anyone?
!!!get your FEX on
!!!! define a FEX
fex 101
desc FEX101
!!! define maximum links!
!!! trick question! If the link is a PO then your max links is 1.
pinning max-links 1
!!!! define the port channel
interf po101
!!! MODE!
switch mod fex-fabric
!!! associate it with the logical FEX
fex asso 101
!!!! Bring the physicals (with the FETs connected) into the PO101
interf ra e2/1 - 4
!!! MODE!
switch mode fex-fabric
!!! call the fex!
fex ass 101
!!! call the PO
channel-group 101
no shut
--
-Hammer-
"I was a normal American nerd"
-Jack Herer
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