Saturday, December 22, 2012

Brocade: Inline Power Power-by-class Command

I really like to change the power settings on each port to a lower rate than what the default is on the Brocade POE switches.  I personally find that if I do that, I have less power issues one the switches.  The default is 30W per port.  I like to run them down to 7W per port.  I find that most IP phones and APs generally like less than 7W.  Here is a cut and paste on a ICX switch I changed today.

nt-swi-02# sh inline power

Power Capacity:         Total is 740000 mWatts. Current Free is 710000 mWatts.

Power Allocations:      Requests Honored 2 times

 Port   Admin   Oper    ---Power(mWatts)---  PD Type  PD Class  Pri  Fault/
        State   State   Consumed  Allocated                          Error
--------------------------------------------------------------------------
ommited for brievity...
1/1/46  On      On           282      30000  Legacy   n/a         3  n/a
1/1/47  Off     Off            0          0  n/a      n/a         3  n/a
1/1/47  Off     Off            0          0  n/a      n/a         3  n/a
--------------------------------------------------------------------------
 Total                       282      30000


nt-swi-02#config t
nt-swi-02(config)#int eth 1/1/1 to 1/1/46
nt-swi-02(config-mif-1/1/1-1/1/46)#inline power power-by-class 2
Warning: Inline power configuration on port 1/1/46 has been modified.
nt-swi-02(config-mif-1/1/1-1/1/46)#exit
nt-swi-02(config)#exit
nt-swi-02#sh inlin power

Power Capacity:         Total is 740000 mWatts. Current Free is 418000 mWatts.

Power Allocations:      Requests Honored 47 times

 Port   Admin   Oper    ---Power(mWatts)---  PD Type  PD Class  Pri  Fault/
        State   State   Consumed  Allocated                          Error
--------------------------------------------------------------------------
ommited for brievity...
1/1/43  On      Off            0       7000  n/a      n/a         3  n/a
1/1/44  On      Off            0       7000  n/a      n/a         3  n/a
1/1/45  On      Off            0       7000  n/a      n/a         3  n/a
1/1/46  On      On           282       7000  Legacy   n/a         3  n/a
1/1/47  Off     Off            0          0  n/a      n/a         3  n/a
1/1/47  Off     Off            0          0  n/a      n/a         3  n/a
--------------------------------------------------------------------------
 Total                       282     322000


nt-swi-02#

2 comments:

  1. This blog post is really helpful, I love the way this post was written. Thanks for sharing this information.

    PEO Networking

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