cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
4724
Views
5
Helpful
13
Replies

IE-4000-8GT8GP4G-E POE - 240w budget problem

Maffi
Level 1
Level 1

Hi everyone.

I have problem setting poe budget to more than 125w on my IE-4000-8GT8GP4G-E.

On web page I can only set 4-125w, same in cli: power inline wattage max <4-125>.

 

IIE-4000-8GT8GP4G-E should have possibility to set 240w.

 

I tried to find any help in switch manual but without luck.

Im attaching screenshot of power settings.

 

Im looking forward for any help.

 

13 Replies 13

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

Max is 125.

See page 25 in this link:

https://learningnetwork.cisco.com/static/IoT_IE4000_Overview.pdf

HTH

Hi,

So I'm little confused now.

 

On IE4000 datasheet - Table2 shows 240W:

https://www.cisco.com/c/en/us/products/collateral/switches/industrial-ethernet-4000-series-switches/datasheet-c78-733058.html

 

On IE4000 Guide:

https://www.cisco.com/c/en/us/td/docs/switches/lan/cisco_ie4000/hardware/installation/guide/ie4000_hig/HIGOVERV.html

 

Table1 shows information:

"1 IE-4000-8GT8GP4G-E supports up to 240W PoE, consisting of eight ports of PoE+ (30 W per port; IEEE 802.3at) with temperature derating (131°F (55°C) at full 240W PoE power) and depending on the power source used. All other PoE-capable models support up to 120W PoE, either PoE (15.4 W per port; IEEE 802.3af) or PoE+ (30 W per port; IEEE 802.3at) over the full operating temperature range.

 

Hi,

So, the switch has 8 POE+ ports and each port supports up to 30W. So, 8*30=240W.

I don't have one of these devices to test with but I don't think you can actually set one port to more than 30W.

Have you tested this?

HTH

I dont't want to set one port to more than 30W. I want to set whole switch to power up 8 devices, each 30W.

When i connect more than 4 devices 4*30W, switch shut downs poe because of 125W limit.

 

test#conf t
test(config)#power inline wattage max
%CAUTION: Misconfiguring the 'power inline' wattage
command may cause damage to the switch
Take precaution not to oversubscribe the power supply.
command will result in reset of the PD(s) connected.
Refer to documentation.

 

test#show power inline
Available:125.0(w) Used:0.0(w) Remaining:125.0(w)

Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/13 auto off 0.0 n/a n/a 30.0
Gi1/14 auto off 0.0 n/a n/a 30.0
Gi1/15 auto off 0.0 n/a n/a 30.0
Gi1/16 auto off 0.0 n/a n/a 30.0
Gi1/17 auto off 0.0 n/a n/a 30.0
Gi1/18 auto off 0.0 n/a n/a 30.0
Gi1/19 auto off 0.0 n/a n/a 30.0
Gi1/20 auto off 0.0 n/a n/a 30.0

 

After connecting 8 devices - 7*15W poe, 1*30W poe:

 

test#show power inline
Available:125.0(w) Used:122.4(w) Remaining:2.6(w)

Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Gi1/13 auto power-deny 0.0 n/a n/a 30.0
Gi1/14 auto on 15.4 Ieee PD 3 30.0
Gi1/15 auto on 15.4 Ieee PD 0 30.0
Gi1/16 auto on 15.4 Ieee PD 4 30.0
Gi1/17 auto on 15.4 Ieee PD 4 30.0
Gi1/18 auto on 15.4 Ieee PD 4 30.0
Gi1/19 auto on 15.4 Ieee PD 4 30.0
Gi1/20 auto on 30.0 Ieee PD 4 30.0

 

test#show version

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 20 IE-4000-8GT8GP4G-E 15.2(4)EA5 IE4000-UNIVERSALK9-M

 

 

Ok, I understand now. You may want to open a ticket with Cisco on this and see if there is a bug in the OS you are running.

HTH

With newest IOS:

IE4000 Software (IE4000-UNIVERSALK9-M), Version 15.2(4)EA9, RELEASE SOFTWARE (fc2) 

Same problem.

 

 

Has this been resolved by TAC in the meanwhile?

No

Hi Maffi,

I am running into this problem as well. Did your TAC case give any results yet?

Found an ED release (15.2(6)E2a) of which the release notes state a "new feature" of 240W use ...

 

https://www.cisco.com/c/en/us/td/docs/switches/connectedgrid/cg-switch-sw-master/software/release/notes/rn-15-2-6e2a.html#pgfId-316560

I have the same problem, have installed the mentioned IOS version, but still just 125W PoE budgett, is there a command I have to put in in order to get 240W PoE?

try "power inline wattage max 240".
I was able to get my IE4000-8GT8GP4G-E running on 15.2.7b to provide 240W after that command.

I had the same issue on the same model (V03) and the command fixed the issue. I will add though, that after issuing the command, all the ports went "offline" - I lost LLDP/CDP and I panicked a bit. I rebooted the switch without saving the config and the switch came back up in 125W mode and devices were back online. But then I tried the command again, and saved config and reloaded - it seems the command has to be issued at time of switch boot up to be effective.

 

Happy days! Not sure why Cisco doesn't make this the default.

 

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: