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Beginner

ie2000 with 170W power supply only supplying 65W to PoE

An IE-2000-16PTC-G-L, which has 4 x PoE+ ports, with a 170W power supply, should have 120W available to the PoE ports. However, it is only making 65W available.

 

Is it supposed to detect the available power, or is there a way to set the available power in the configuration?

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9 REPLIES 9
Cisco Employee

Re: ie2000 with 170W power supply only supplying 65W to PoE

Hello Stephen,

 

I hope you're doing well.

 

Could you please provide the output of the following commands?

show power inline
show controller power
show lldp
show version

According to the IE 2000 hardware installation guide,the models that support PoE provide up to four ports of either PoE (15.4 W per port; IEEE 802.3af) or PoE+ (30 W per port; IEEE 802.3at), depending on the power source used.

 

Let's validate this with the outputs of the previously requested commands.

 

Reference link:

https://www.cisco.com/c/en/us/td/docs/switches/lan/cisco_ie2000/hardware/installation/guide/ie2000_hig/REV-HIGINSTL.html?bookSearch=true#36913

 

 

 

 

Beginner

Re: ie2000 with 170W power supply only supplying 65W to PoE

Thanks for your reply.

 

From the show power inline output, note that Available is only 65W. This is the problem. There should be at least 120W given it's a 170W power supply. We set the power on each port statically to get the ports up, but the devices really need 23W, but that is just temporary. Ideally, just want the default 30W per port, but if we do that, it can only start two devices

 

 

=====================================================

------------------ show power inline ------------------

Available:65.0(w) Used:64.0(w) Remaining:1.0(w)

Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Fa1/1 static on 16.0 Ieee PD 4 16.0
Fa1/3 static on 16.0 Ieee PD 4 16.0
Fa1/5 static on 16.0 Ieee PD 4 16.0
Fa1/7 static on 16.0 Ieee PD 4 16.0

 

=====================================================

 

#sh run in Fa1/1 

 

interface FastEthernet1/1
switchport mode trunk
power inline consumption 16000
power inline static max 16000
spanning-tree portfast edge
!

=====================================================


------------------ show controllers power inline ------------------


Controller Instance 0, Address 0x50
Standard Registers:
-------------------
Interrupt Reg 0x0 = 0x0
Intr Mask Reg 0x1 = 0xF6
Power Event Reg 0x2 = 0x0
Detect Event Reg 0x4 = 0x0
Fault Event Reg 0x6 = 0x0
T-Start Event Reg 0x8 = 0x0
Supply Event Reg 0xA = 0x0
Port 1 Status Reg 0xC = 0x44
Port 3 Status Reg 0xD = 0x44
Port 5 Status Reg 0xE = 0x0
Port 7 Status Reg 0xF = 0x0
Power Status Reg 0x10 = 0xFF
Pin Status Reg 0x11 = 0x20
Operating Mode Reg 0x12 = 0xAA
Disconnect Enable Reg 0x13 = 0xF
Detect/Class Enable Reg 0x14 = 0xFF
Reserved Reg 0x15 = 0x0
Timing Config Reg 0x16 = 0x0
Misc Config Reg 0x17 = 0x80
ID Revision Reg 0x1B = 0x41
PWRPR Reg 0x15 = 0x0

Extended Registers:
-------------------
Port 1 :
Police Value Reg 0x1E = 0x0
IEEE Type1 Penable Reg 0x23 = no
IEEE Type2 Penable Reg 0x23 = no
IEEEF Power On Fault Reg 0x24 = No Fault
2XPow Enabled Reg 0x40 = yes
ICUT Reg 0x2A = 400 mA
Current Reg 0x30/31 = 2209
Voltage Reg 0x32/33 = 9004
Priority Reg 0x15 = High
Port 3 :
Police Value Reg 0x1E = 0x0
IEEE Type1 Penable Reg 0x23 = no
IEEE Type2 Penable Reg 0x23 = no
IEEEF Power On Fault Reg 0x24 = No Fault
2XPow Enabled Reg 0x40 = yes
ICUT Reg 0x2A = 400 mA
Current Reg 0x34/35 = 2275
Voltage Reg 0x36/37 = 9020
Priority Reg 0x15 = High
Port 5 :
Police Value Reg 0x1F = 0x0
IEEE Type1 Penable Reg 0x23 = no
IEEE Type2 Penable Reg 0x23 = no
IEEEF Power On Fault Reg 0x24 = No Fault
2XPow Enabled Reg 0x40 = yes
ICUT Reg 0x2B = 400 mA
Current Reg 0x38/39 = 2251
Voltage Reg 0x3A/3B = 9023
Priority Reg 0x15 = High
Port 7 :
Police Value Reg 0x1F = 0x0
IEEE Type1 Penable Reg 0x23 = no
IEEE Type2 Penable Reg 0x23 = no
IEEEF Power On Fault Reg 0x24 = No Fault
2XPow Enabled Reg 0x40 = yes
ICUT Reg 0x2B = 400 mA
Current Reg 0x3C/3D = 2214
Voltage Reg 0x3E/3F = 9002
Priority Reg 0x15 = High


MCU temperature Reg 0x2C = 96
Vee Voltage Reg 0x2E/2F = 9013
Firmware Revision Reg 0x41 = 32
WdogTimer Disable Reg 0x42 = 4
WdogTimer Status Reg 0x42 = 1
DeviceID Reg 0x43 = 5
SiliconRevision Reg 0x43 = 5

 

=====================================================

#sh lldp nei
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other

Device ID Local Intf Hold-time Capability Port ID
xxxxxxxxxxxxxxx01.inGi1/2 120 B,R Te2/1/4
xxxxxxxxxxxxxxx01.inGi1/1 120 B,R Te1/1/4
c8:xx:xx:xx:xx:a6 Fa1/1 120 c8xx.xxxx.xxa6
c8:xx:xx:xx:xx:28 Fa1/3 120 c8xx.xxxx.xx28
c8:xx:xx:xx:xx:34 Fa1/5 120 c8xx.xxxx.xx34
c8:xx:xx:xx:xx:24 Fa1/7 120 c8xx.xxxx.xx24

Total entries displayed: 6

=====================================================

# sh lldp nei fa 1/1 de
------------------------------------------------
Local Intf: Fa1/1
Chassis id: c8xx.xxxx.xxa6
Port id: c8xx.xxxx.xxa6
Port Description: eth0
System Name: c8:xx:xx:xx:xx:a6

System Description:
ArubaOS (MODEL: 275), Version 6.4.2.6-4.1.1.6 (50009)

Time remaining: 90 seconds
System Capabilities: B,W
Enabled Capabilities - not advertised
Management Addresses:
IP: 10.11.111.17
Auto Negotiation - supported, enabled
Physical media capabilities:
1000baseT(FD)
100base-TX(FD)
100base-TX(HD)
10base-T(FD)
10base-T(HD)
Media Attachment Unit type: 16
Vlan ID: - not advertised
PoE+ Power-via-MDI TLV:
Power Pair: Signal
Power Class: Class 4
Power Device Type: Type 2 PD
Power Source: PSE
Power Priority: unknown
Power Requested: 25500 mW
Power Allocated: 13500 mW


Total entries displayed: 1


=====================================================

 

#sh ver
Cisco IOS Software, IE2000 Software (IE2000-UNIVERSALK9-M), Version 15.2(4)EA5, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2016 by Cisco Systems, Inc.
Compiled Tue 20-Dec-16 13:47 by prod_rel_team

ROM: Bootstrap program is IE2000 boot loader
BOOTLDR: IE2000 Boot Loader (IE2000-HBOOT-M) Version 15.2(3r)E, RELEASE SOFTWARE (fc1)

xxxxxxxxxxxxxx04 uptime is 1 day, 39 minutes
System returned to ROM by power-on
System restarted at 12:01:53 AEST Thu Jul 26 2018
System image file is "flash:/ie2000-universalk9-mz.152-4.EA5/ie2000-universalk9-mz.152-4.EA5.bin"
Last reload reason: power-on

 

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

License Level: lanlite
License Type: Permanent
Next reload license Level: lanlite

cisco IE-2000-16PTC-G-L (PowerPC405) processor (revision N0) with 262144K bytes of memory.
Processor board ID xxxxxxxxxxx
Last reset from power-on
2 Virtual Ethernet interfaces
16 FastEthernet interfaces
2 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

64K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : xx:xx:xx:xx:xx:xx
Motherboard assembly number : 73-15729-01
Motherboard serial number : xxxxxxxxxxx
Model revision number : N0
Motherboard revision number : H0
Model number : IE-2000-16PTC-G-L
System serial number : xxxxxxxxxxx
Top Assembly Part Number : 800-39201-01
Top Assembly Revision Number : P0
Version ID : V01
Hardware Board Revision Number : 0x03
CIP Serial Number : xxxxxxxx
SKU Brand Name : Cisco


Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 18 IE-2000-16PTC-G-L 15.2(4)EA5 IE2000-UNIVERSALK9-M


Configuration register is 0xF

 

 

Cisco Employee

Re: ie2000 with 170W power supply only supplying 65W to PoE

Hello Stephen,

 

Can you please also share the output of the following command?

 

show inventory raw

 

Regards,

Beginner

Re: ie2000 with 170W power supply only supplying 65W to PoE

Thanks for responding. I can't try the raw version right now, as I'm not on site, but I have the following from a saved show tech.

 

Could I just use the global (as opposed to interface) command "power inline 120000" command to set the total available power for all PoE+ interfaces? This seems logical, and as the power is external, this seems the only way to tell the switch how much power should be available.

 

The data sheet for the switch says a 65W power supply supports up to two PoE+ ports, and a 170W power supply supports "maximum" PoE+ ports. Do you think by maximum they mean all PoE ports? It's like the documentation writer didn't know either.

 

#sh inventory
NAME: "1", DESCR: "IE-2000-16PTC-G-L"
PID: IE-2000-16PTC-G-L , VID: V01 , SN: FDxxxxxxx85

NAME: "IE-2000-16PTC-G-L - Module", DESCR: "IE-2000-16PTC-G-L - Module"
PID: IE-2000-16PTC-G-L , VID: V01 , SN: FDxxxxxxx85

NAME: "GigabitEthernet1/1", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MM-RGD , VID: V03 , SN: OPxxxxxxxSA

NAME: "GigabitEthernet1/2", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MM-RGD , VID: V03 , SN: OPxxxxxxxNJ

 

Cisco Employee

Re: ie2000 with 170W power supply only supplying 65W to PoE

Hello Stephen,

 

I'm suspecting that the issue is more related to how the Power Supply is connected to the IE-2000.

 

  • What's the part number of the power supply that you're using?
  • How is the power supply connected to the switch?

Be aware of the following:

 

The IE 2000 switch models with PoE capability (IE-2000-16PTC-G-E, IE-2000-16PTC-G-L, and IE-2000-16PTC-G-NX) are equipped with an additional DC input terminal block. This DC terminal block allows the connection of a second power supply (see Power over Ethernet Ports), or a second input from site source DC power to operate the PoE ports. The PoE terminal block accepts 48 VDC or 54 VDC at 2.5 A.

 

The 170W (both AC and DC) power supplies have enough power for the base unit and the PoE. Connect one power output from the 170W PSU to the main power input of the IE2000, and the other power output of the 170W PSU to the PoE power input of the IE2000.

 

Regarding the 65W power supplies, those supports up to 4 ports PoE or 2 ports PoE+ when used in PoE power input in an AC or high DC environment.

 

The other thing would be to test (using a tester) that the power supply is in fact providing the expected power output.

 

Regards,

 

Beginner

Re: ie2000 with 170W power supply only supplying 65W to PoE

ie2000-with-170W PSU.jpgIE2000 with 170W power supply

 

Thanks again for replying, I appreciate your help. As you can see, the connection is as documented. The measurement shouldn't be necessary - the situation is the same for nine switches.

We've opened a TAC case, so we'll see what they say.

Beginner

Re: ie2000 with 170W power supply only supplying 65W to PoE

What was the answer from the Cisco TAC?

Beginner

Re: ie2000 with 170W power supply only supplying 65W to PoE

Just figured it out. Needed to config max WATTs for the new Power supply: 

conf t

power inline wattage max 130

end

Beginner

Re: ie2000 with 170W power supply only supplying 65W to PoE

Hi everyone,

I have the same issue than Stephen, and "power inline wattage max 130" seems to solve the problem, since now appear 130W available, but is important to mention than on the PoE input Power say: 54VDC / 1.3A, what is 70W, aprox. the 65W available that appear by default.

So the question is, Is this switch capable of power up 4 ports x30W or just 65-70W?

I don´t want to burn anything trying this.

 

Thanks!

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