FabricWatch FW-1050 alerts on SFP power failures

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Whenever you see Fabricwatch throw a lot of a lot of FW-1050 warning messages around indicating an out of boundary power value on SFP’s it is most likely these ports have never been polled by the CP’s.

2014/10/08-04:04:27, [FW-1050], 94159, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/13, is below low boundary(High=3630, Low=2970). Current value is 0 mV.
2014/10/08-04:04:27, [FW-1050], 94160, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/15, is below low boundary(High=3630, Low=2970). Current value is 0 mV.
2014/10/08-04:04:27, [FW-1050], 94161, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/20, is below low boundary(High=3630, Low=2970). Current value is 0 mV.
2014/10/08-04:04:27, [FW-1050], 94162, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/22, is below low boundary(High=3630, Low=2970). Current value is 0 mV.
2014/10/08-04:04:27, [FW-1050], 94163, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/28, is below low boundary(High=3630, Low=2970). Current value is 0 mV.
2014/10/08-04:04:27, [FW-1050], 94164, SLOT 5 | FID 128, WARNING, xxxxxx, Sfp Supply Voltage for port 7/30, is below low boundary(High=3630, Low=2970). Current value is 0 mV.

Multi_mode_sfp_transceiver_IMGP7822_wp

On a normally operational port FOS will poll the SFP’s so now and then to check on various things. This includes the usual SFP inventory like serial number, Vendor ID, SFP capabilities etc. Additional things that checked are the TX and RX power levels, voltage and current being used on that particular SFP.

The switch knows there is an SFP inserted in the port but it simply has not kicked off an inventory and status poll.

LS41:FID41:admin> switchshow
switchName:	LS41
switchType:	77.3
switchState:	Online   
switchMode:	Native
switchRole:	Principal
switchDomain:	41
switchId:	fffc29
switchWwn:	10:00:00:05:1e:52:af:02
zoning:		ON (test)
switchBeacon:	OFF
FC Router:	OFF
Allow XISL Use:	ON
LS Attributes:	[FID: 41, Base Switch: No, Default Switch: No, Address Mode 1]

Index Slot Port Address Media  Speed        State    Proto
============================================================
  14    1   14   290100   id    N8	   No_Light    FC  Disabled
LS41:FID41:admin> sfpshow 1/14
Port 14 does not use an SFP or is disabled...

Even when enabling a port there is no immediate change.

LS41:FID41:admin> portenable 1/14
LS41:FID41:admin> sfpshow 1/14
Identifier: 3 SFP
Connector: 7 LC
Transceiver: 150c402001000000 1,2,4_Gbps M5,M6 sw Inter_dist
Encoding: 1 8B10B
Baud Rate: 42 (units 100 megabaud)
Length 9u: 0 (units km)
Length 9u: 0 (units 100 meters)
Length 50u (OM2): 15 (units 10 meters)
Length 50u (OM3): 0 (units 10 meters)
Length 62.5u:7 (units 10 meters)
Length Cu: 0 (units 1 meter)
Vendor Name: BROCADE
Vendor OUI: 00:05:1e
Vendor PN: 57-1000013-01
Vendor Rev: A
Wavelength: 850 (units nm)
Options: 0032 Loss_of_Sig,Tx_Disable
BR Max: 0
BR Min: 0
Serial No: VAF10904000052H
Date Code: 090118
DD Type: 0x68
Enh Options: 0xd8
Status/Ctrl: 0x82
Alarm flags[0,1] = 0x5, 0x40
Warn Flags[0,1] = 0x5, 0x40
Alarm Warn
low high low high
Temperature : Not Available
Current : Not Available
Voltage : Not Available
RX Power : Not Available
TX Power : Not Available
State transitions: 1
Last poll time : Polling has not started

Change the normal with “persistent” disable does not change the polling in anyway. When persistently disabling a port it simply turns off the laser and the state is retained over boot cycles.

LS41:FID41:admin> portcfgpersistentdisable 1/14

The state stays the same.

LS41:FID41:admin> sfpshow 1/14
Identifier: 3 SFP
Connector: 7 LC
Transceiver: 150c402001000000 1,2,4_Gbps M5,M6 sw Inter_dist
Encoding: 1 8B10B
Baud Rate: 42 (units 100 megabaud)
Length 9u: 0 (units km)
Length 9u: 0 (units 100 meters)
Length 50u (OM2): 15 (units 10 meters)
Length 50u (OM3): 0 (units 10 meters)
Length 62.5u:7 (units 10 meters)
Length Cu: 0 (units 1 meter)
Vendor Name: BROCADE
Vendor OUI: 00:05:1e
Vendor PN: 57-1000013-01
Vendor Rev: A
Wavelength: 850 (units nm)
Options: 0032 Loss_of_Sig,Tx_Disable
BR Max: 0
BR Min: 0
Serial No: VAF10904000052H
Date Code: 090118
DD Type: 0x68
Enh Options: 0xd8
Status/Ctrl: 0x82
Alarm flags[0,1] = 0x5, 0x40
Warn Flags[0,1] = 0x5, 0x40
Alarm Warn
low high low high
Temperature : Not Available
Current : Not Available
Voltage : Not Available
RX Power : Not Available
TX Power : Not Available

State transitions: 1
Last poll time : Polling has not started

During this time the FW-1050 messages of FabricWatch will still be logged. In order to resolve this you can force FOS to poll the SFP and extract the power-values etc.




The command to execute :

sfpshow <slot>/<port> -f

The “-f” forces the poll and the info will be extracted.

LS41:FID41:admin> sfpshow 1/14 -f
Identifier: 3 SFP
Connector: 7 LC
Transceiver: 150c402001000000 1,2,4_Gbps M5,M6 sw Inter_dist
Encoding: 1 8B10B
Baud Rate: 42 (units 100 megabaud)
Length 9u: 0 (units km)
Length 9u: 0 (units 100 meters)
Length 50u (OM2): 15 (units 10 meters)
Length 50u (OM3): 0 (units 10 meters)
Length 62.5u:7 (units 10 meters)
Length Cu: 0 (units 1 meter)
Vendor Name: BROCADE
Vendor OUI: 00:05:1e
Vendor PN: 57-1000013-01
Vendor Rev: A
Wavelength: 850 (units nm)
Options: 0032 Loss_of_Sig,Tx_Disable
BR Max: 0
BR Min: 0
Serial No: VAF10904000052H
Date Code: 090118
DD Type: 0x68
Enh Options: 0xd8
Status/Ctrl: 0x82
Alarm flags[0,1] = 0x5, 0x40
Warn Flags[0,1] = 0x5, 0x40
Alarm Warn
low high low high
Temperature: 25 Centigrade -25 95 -20 90
Current: 0.008 mAmps 1.000 17.000 2.000 14.000
Voltage: 3302.4 mVolts 2700.0 3900.0 2900.0 3700.0
RX Power: -37.0 dBm (0.2 uW) 10.0 uW 1259.0 uW 15.8 uW 794.0 uW
TX Power: -inf dBm (0.0 uW) 67.0 uW 631.0 uW 79.0 uW 631.0 uW

State transitions: 1
Last poll time: 10-09-2014 EST Thu 16:26:50

This also stops the FW-1050 messages.

Hope this helps

Regards,

Erwin

About Erwin van Londen

Master Technical Analyst at Hitachi Data Systems
Brocade , , , ,

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