05-28-2010 08:54 AM - edited 03-06-2019 11:19 AM
Hi there. I have a really basic question, so please be gentle. We have hundreds of 3750G switches deployed on our campus. Is there an easy way to determine ACTUAL PoE usage? We know that the switch supports 370w, which is ~26 phones (currently using 7945 and 7965 IP Phones) but we would like to see the actual usage -- there must be a parameter for that at the command line, right? We are responsible for the installation and deployment of telephones and we have run into some issues with the latest phone kicking one off if it is at the ragged edge of the power delivery. I have been waiting for a response from our networking team on this and thought I would ask here.
Thanks,
Blake
05-28-2010 09:16 AM
blake.gentner wrote:
Hi there. I have a really basic question, so please be gentle. We have hundreds of 3750G switches deployed on our campus. Is there an easy way to determine ACTUAL PoE usage? We know that the switch supports 370w, which is ~26 phones (currently using 7945 and 7965 IP Phones) but we would like to see the actual usage -- there must be a parameter for that at the command line, right? We are responsible for the installation and deployment of telephones and we have run into some issues with the latest phone kicking one off if it is at the ragged edge of the power delivery. I have been waiting for a response from our networking team on this and thought I would ask here.
Thanks,
Blake
Blake
Try "sh power inline consumption" -
Jon
05-28-2010 09:18 AM
Use this command
show power inline
4506-E_04#show power inline
Available:1400(w) Used:1392(w) Remaining:8(w)
Interface Admin Oper Power(Watts) Device Class
From PS To Device
--------- ------ ---------- ---------- ---------- ------------------- -----
Gi2/1 auto on 7.1 6.3 IP Phone 7960 n/a
Gi2/2 auto on 14.5 12.9 IP Phone 7961 3
Gi2/3 auto off 0.0 0.0 n/a n/a
Gi2/4 auto off 0.0 0.0 n/a n/a
Gi2/5 auto off 0.0 0.0 n/a n/a
Gi2/6 auto off 0.0 0.0 n/a n/a
Gi2/7 auto off 0.0 0.0 IP Phone 7965 n/a
Gi2/8 auto off 0.0 0.0 n/a n/a
Gi2/9 auto off 0.0 0.0 n/a n/a
Gi2/10 auto on 13.5 12.0 IP Phone 7965 3
Gi2/11 auto on 13.5 12.0 IP Phone 7965 3
Gi2/12 auto on 13.5 12.0 IP Phone 7965 3
Gi2/13 auto on 13.5 12.0 IP Phone 7965 3
Gi2/14 auto off 0.0 0.0 IP Phone 7965 n/a
Mike
05-28-2010 09:49 AM
Thank you so much -- that command provides exactly the information we have been looking for. Now we just have to use it!
Blake
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