[f-nsp] Impact of disabling SFM modules on MLX

[Aaron Wendel]

You'll need 2 SFMs to keep running normally.  The MLXe-4 holds 3 so if you have them all you can remove I've without problem.

Aaron

On Apr 12, 2013, at 5:27 AM, Chris Hellkvist <chris.hellkvist at googlemail.com> wrote:

> Hi,
> 
> currently i have a SFM module in a MLX 4e showing strange errors (FE
> Access failure detected on SNM 1/FE 1) in the log, also the SFM
> utilization looks a bit unhealthy:
> SFM#1
> ----------+-----------+---------+-----------+---------
> last 1 second  utilization = 1494.3%
> last 5 seconds utilization = 1494.3%
> last 1 minute  utilization = 1494.3%
> last 5 minutes utilization = 1493.4%
> 
> I have a SR with Brocade and they suggested to disable SFM1 and
> created a RMA for the module. However they were not really able to
> tell me what impact a power-off of SFM1 has on the traffic flowing
> trough the device (both routed and switched).
> 
> Has someone on the list experience with disabling SFM modules? Is this
> causing any impact on the network or is this fully transparent?
> 
> Thanks,
> -Chris
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