Troubleshooting
Consider some of the following scenarios that impact PoE functionality and the actions
required to overcome the issues:
- Ports connected to legacy PDs with 10-Mbps uplink port speed are treated as non-PD
ports and, therefore, power is not supplied to the legacy PDs. This occurs in two
scenarios:
- When a PSE port is configured with 10M and connected to PDs with 10-Mbps uplink port speed.
- When a PSE port is in auto-negotiation mode (default mode) and the PD is in the powered
state; and if the PD is power-cycled using the
no inline powercommand followed by theinline powercommand.
RUCKUS recommends one of the following configurations to overcome the limitation and get the PDs out of the non-PD state:
- PoE functionality on some ports will not be available when the device (PoE chip) fails
during operation. These ports show up as "internal hardware fault" in the
show inline powercommand output. In such scenarios, remove the PDs and configure theno inline powercommand on the affected ports. A syslog message is generated that shows the specific ports that are offline due to device failure. Refer to the RUCKUS FastIron Monitoring Configuration Guide for syslog details.device# show inline power Power Capacity: Total is 740000 mWatts. Current Free is 721700 mWatts. Power Allocations: Requests Honored 48 times Port Admin Oper ---Power(mWatts)--- PD Type PD Class Pri Fault/ State State Consumed Allocated Error -------------------------------------------------------------------------- 7/1/1 On On 7000 12000 802.3af Class 3 3 n/a 7/1/2 On Off 0 0 n/a n/a 3 n/a 7/1/3 On Off 0 0 n/a n/a 3 n/a 7/1/4 On Off 0 0 n/a n/a 3 n/a 7/1/5 On Off 0 0 n/a n/a 3 n/a 7/1/6 On Off 0 0 n/a n/a 3 n/a 7/1/7 On Off 0 0 n/a n/a 3 n/a 7/1/8 On Off 0 0 n/a n/a 3 n/a 7/1/9 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/10 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/11 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/12 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/13 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/14 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/15 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/16 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/17 On Off 0 0 n/a n/a 3 n/a 7/1/18 On Off 0 0 n/a n/a 3 n/a 7/1/19 On Off 0 0 n/a n/a 3 n/a 7/1/20 On Off 0 0 n/a n/a 3 n/a 7/1/21 On Off 0 0 n/a n/a 3 n/a 7/1/22 On Off 0 0 n/a n/a 3 n/a 7/1/23 On Off 0 0 n/a n/a 3 n/a 7/1/24 On Off 0 0 n/a n/a 3 n/a 7/1/25 On Off 0 0 n/a n/a 3 n/a 7/1/26 On Off 0 0 n/a n/a 3 n/a 7/1/27 On Off 0 0 n/a n/a 3 n/a 7/1/28 On Off 0 0 n/a n/a 3 n/a 7/1/29 On Off 0 0 n/a n/a 3 n/a 7/1/30 On Off 0 0 n/a n/a 3 n/a 7/1/31 On Off 0 0 n/a n/a 3 n/a 7/1/32 On Off 0 0 n/a n/a 3 n/a 7/1/33 On Off 0 0 n/a n/a 3 n/a 7/1/34 On Off 0 0 n/a n/a 3 n/a 7/1/35 On Off 0 0 n/a n/a 3 n/a 7/1/36 On On 1800 6300 Legacy n/a 3 n/a 7/1/37 On Off 0 0 n/a n/a 3 n/a 7/1/38 On Off 0 0 n/a n/a 3 n/a 7/1/39 On Off 0 0 n/a n/a 3 n/a 7/1/40 On Off 0 0 n/a n/a 3 n/a 7/1/41 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/42 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/43 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/44 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/45 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/46 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/47 On Off 0 0 n/a n/a 3 internal h/w fault 7/1/48 On Off 0 0 n/a n/a 3 internal h/w fault -------------------------------------------------------------------------- Total 8800 18300 - If high power-consuming PDs are connected in consecutive ports and the ambient temperature is high, the device gets heated up. In such scenarios, distribute the load so that each of the 8-port groups (ports 1-8, 9-16, and so on) have equal power consumption.
- If voltage applied from an external source is detected from a PoE port, new PDs cannot
get powered on this unit. In such scenarios, configure the
no inline powercommand on all Switch-to-Switch connected ports of this unit and peer units to resolve the issue.device(config)# show inline power 1 Power Capacity: Total is 748000 mWatts. Current Free is 748000 mWatts. Power Allocations: Requests Honored 48 times Port Admin Oper ---Power(mWatts)--- PD Type PD Class Pri Fault/ State State Consumed Allocated Error -------------------------------------------------------------------------- 1/1/1 Off Off 0 0 n/a n/a 3 n/a 1/1/2 On Off 0 0 n/a n/a 3 n/a 1/1/3 On Off 0 0 n/a n/a 3 n/a 1/1/4 Off Off 0 0 n/a n/a 3 n/a 1/1/5 On Off 0 0 n/a n/a 3 n/a 1/1/6 On Off 0 0 n/a n/a 3 n/a 1/1/7 On Off 0 0 n/a n/a 3 n/a 1/1/8 On Off 0 0 n/a n/a 3 voltage applied from ext src 1/1/9 On Off 0 0 n/a n/a 3 n/a 1/1/10 On Off 0 0 n/a n/a 3 non-standard PD 1/1/11 Off Off 0 0 n/a n/a 3 n/a 1/1/12 On Off 0 0 n/a n/a 3 n/a 1/1/13 On Off 0 0 n/a n/a 3 n/a 1/1/14 Off Off 0 0 n/a n/a 3 n/a 1/1/15 On Off 0 0 n/a n/a 3 n/a 1/1/16 On Off 0 0 n/a n/a 3 n/a 1/1/17 On Off 0 0 n/a n/a 3 n/a 1/1/18 Off Off 0 0 n/a n/a 3 n/a 1/1/19 On Off 0 0 n/a n/a 3 n/a 1/1/20 On Off 0 0 n/a n/a 3 n/a 1/1/21 Off Off 0 0 n/a n/a 3 n/a 1/1/22 On Off 0 0 n/a n/a 3 voltage applied from ext src 1/1/23 On Off 0 0 n/a n/a 3 voltage applied from ext src 1/1/24 On Off 0 0 n/a n/a 3 n/a -------------------------------------------------------------------------- Total 0 0 - If voltage applied from an external source is detected from another PoE port, a PD
on the port cannot be powered due to power being injected on another port of this
unit. In such scenarios, configure the
no inline powercommand on all Switch-to-Switch connected ports of this unit and peer units to resolve the issue. - If non-standard (legacy) PDs are not getting powered, use the
legacy-inline-powerconfiguration at the interface configuration level. Syslog is not generated in this scenario.device(config-if-e1000-1/1/1)# legacy-inline-power device(config-if-e1000-1/1/1)# show runn int eth 1/1/1 interface ethernet 1/1/1 legacy-inline-power !
- The
show inline power detailcommand displays detailed information about the PoE power supplies installed in a PoE device. For example, the "VOP-Sev" issue is viewed using theshow inline power detailcommand as shown below.device# show inline power detail Power Supply Data On unit 1: ++++++++++++++++++ Power Supply Data: ++++++++++++++++++ power supply 1 is not present Power Supply #2: Max Curr: 13.9 Amps Voltage: 54.0 Volts Capacity: 748 Watts PoePower: 748 Watts POE Details Info. On Unit 1 : General PoE Data: +++++++++++++++++ Firmware Version ---------------- 02.1.8 Build 004 Hardware Version ---------------- V2R2 Device HW version : 0:V2R2 1:V2R2 2:V2R2 3:V2R2 4:V2R2 5:V2R2 6:V2R2 7:V2R2 8:V2R2 Device Temperature(deg-C) : 0:42 1:44 2:46 3:50 4:50 5:50 6:46 7:42 8:44 Device Status : 0:Good 1:Good 2:Good 3:Good 4:Good 5:VOP-Sev1 6:Recovered 7:Recovered 8:Good Cumulative Port State Data: +++++++++++++++++++++++++++ #Ports #Ports #Ports #Ports #Ports #Ports #Ports Admin-On Admin-Off Oper-On Oper-Off Off-Denied Off-No-PD Off-Fault ------------------------------------------------------------------------- 48 0 0 48 0 48 0 Cumulative Port Power Data: +++++++++++++++++++++++++++ #Ports #Ports #Ports Power Power Pri: 1 Pri: 2 Pri: 3 Consumption Allocation ----------------------------------------------- 0 0 48 0.000 W 0.000 W Power Supply Data On unit 2: ++++++++++++++++++ Power Supply Data: ++++++++++++++++++ Power Supply #1: Max Curr: 13.9 Amps Voltage: 54.0 Volts Capacity: 748 Watts PoePower: 748 Watts power supply 2 is not present POE Details Info. On Unit 2 : General PoE Data: +++++++++++++++++ Firmware Version ---------------- 02.1.8 Build 004 Hardware Version ---------------- V2R4 Device HW version : 0:V2R4 1:V2R4 2:V2R4 3:V2R4 4:V2R4 5:V2R4 6:V2R4 Device Temperature(deg-C) : 0:44 1:46 2:42 3:46 4:40 5:40 6:40 Device Status : 0:Good 1:Good 2:Good 3:Good 4:Good 5:Good 6:Good Cumulative Port State Data: +++++++++++++++++++++++++++ #Ports #Ports #Ports #Ports #Ports #Ports #Ports Admin-On Admin-Off Oper-On Oper-Off Off-Denied Off-No-PD Off-Fault ------------------------------------------------------------------------- 48 0 2 46 0 46 0 Cumulative Port Power Data: +++++++++++++++++++++++++++ #Ports #Ports #Ports Power Power Pri: 1 Pri: 2 Pri: 3 Consumption Allocation ----------------------------------------------- 0 0 48 10.900 W 90.000 W Power Supply Data On unit 3: ++++++++++++++++++ Power Supply Data: ++++++++++++++++++ power supply 1 is not present Power Supply #2: Max Curr: 13.9 Amps Voltage: 54.0 Volts Capacity: 748 Watts PoePower: 748 Watts POE Details Info. On Unit 3 : General PoE Data: +++++++++++++++++ Firmware Version ---------------- 02.1.8 Build 004 Hardware Version ---------------- V2R2 Device HW version : 0:V2R2 1:V2R2 2:V2R2 3:V2R2 4:V2R2 5:V2R2 6:V2R2 7:V2R2 8:V2R2 Device Temperature(deg-C) : 0:40 1:40 2:42 3:44 4:46 5:48 6:42 7:48 8:44 Device Status : 0:Recovered 1:Recovered 2:Good 3:Good 4:Good 5:Good 6:Good 7:Good 8:Good Cumulative Port State Data: +++++++++++++++++++++++++++ #Ports #Ports #Ports #Ports #Ports #Ports #Ports Admin-On Admin-Off Oper-On Oper-Off Off-Denied Off-No-PD Off-Fault ------------------------------------------------------------------------- 48 0 2 46 0 46 0 Cumulative Port Power Data: +++++++++++++++++++++++++++ #Ports #Ports #Ports Power Power Pri: 1 Pri: 2 Pri: 3 Consumption Allocation ----------------------------------------------- 0 0 48 23.900 W 120.000 W - The
show inline power emesgcommand display the history of PoE events. The following is sample output from theshow inline power emesgcommand.device# show inline power emesg 18 16 Log Size: 2000 entries. Number of entries in use: 2000 for unit 18(full). Logging is active. Log printing is requested for last (latest) 16 entries. +-------+----------------+-----+-----+----------+---------------------------------------------+ |SL Num.|Timestamp | Sys | Dev | Port | Event Trace Message | +-------+----------------+-----+-----+----------+---------------------------------------------+ 1 | Jan 23 20:58:00 | N | N/A | 18/1/5 | Port is in detection mode (port is off) 2 | Jan 23 20:58:42 | N | N/A | 18/1/5 | Port has a non-standard PD connected and is o 3 | Jan 23 20:58:46 | N | N/A | 18/1/5 | Port is in detection mode (port is off) 4 | Jan 23 20:59:39 | N | N/A | 18/1/13 | Port is off due to overload state 5 | Jan 23 20:59:51 | N | N/A | 18/1/13 | Port is in detection mode (port is off) 6 | Jan 23 20:59:56 | N | N/A | 18/1/13 | Port is off due to overload state 7 | Jan 23 21:00:07 | N | N/A | 18/1/13 | Port is in detection mode (port is off) 8 | Jan 23 21:00:20 | N | N/A | 18/1/13 | Port is off due to overload state 9 | Jan 23 21:00:30 | N | N/A | 18/1/13 | Port is in detection mode (port is off) 10 | Jan 23 21:01:24 | N | N/A | 18/1/13 | Port is off due to overload state 11 | Jan 23 21:01:32 | N | N/A | 18/1/13 | Port is in detection mode (port is off) 12 | Jan 23 21:02:20 | N | N/A | 18/1/5 | Port has a non-standard PD connected and is o 13 | Jan 23 21:02:23 | N | N/A | 18/1/5 | Port is in detection mode (port is off) 14 | Jan 23 21:02:39 | N | N/A | 18/1/13 | Port is off due to overload state 15 | Jan 23 21:02:46 | N | N/A | 18/1/13 | Port is in detection mode (port is off) 16 | Jan 23 21:03:10 | N | N/A | 18/1/13 | Port has a non-standard PD connected and is o
- If you want to configure Static PM to a
specific port after enabling Dynamic PM on all ports, configure the required ports
with
priority 1. Unless the Power Supply Unit (PSU) is removed, Priority 1 ports will never
lose
power. The following is an example of configuring a specific port to Static PM after
Dynamic
PM has been
configured.
device# configure terminal device(config)#inline power allocation dynamic all device(config)# interface ethernet 1/1/15 device(config-if-e1000-1/1/15)#inline power priority 1
- If Brocade AP 7131N goes to overload, set the port power-limit of corresponding port
to 30
watts.
device# configure terminal device(config)# interface ethernet 1/1/1 device(config-if-e1000-1/1/1)#inline power power-limit 30000 device(config-if-e1000-1/1/1)#exit device(config)#write memory
- If the PoE controller freezes due to a
firmware exception, PoE recovery is automatically triggered. This auto recovery is
similar
to PoE process restart. The PDs on the switch unit are unaffected even though the
logs
during this auto recovery show that the PoE is initialized and that all ports are
powered
down and powered up. During the recovery process, the PDs are not turned off or disconnected
from the network. When this exception occurs, the following syslog is
printed.
PoE Warning: PoE controller exception on unit 2 in slot 1. Recovering from exception...