HI experts , i have ICX 7450 switch and i am getting error as Latched low RX Power warning on switch interface

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  • Question
  • Updated 6 months ago
  • Answered
Error description

Dec 26 17:00:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:00:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 16:52:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 16:52:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 16:44:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 16:44:10:I:    Latched low RX Power alarm, port 1/1/6

i have checked optic status on the interface as below 

[email protected]_P1_D4-4WH-FA_L3-B7450_2.30>sh optic 1/1/6
 Port   Temperature    Voltage       Tx Power      Rx Power    Tx Bias Current
+-----+-------------+-------------+-------------+-------------+---------------+
1/1/6   35.5429 C    3.2895 volts  -6.5560 dBm      N/A        16.072 mA
        Normal          Normal       Normal                        Normal

Will you please help me to how to resolve the issue and as well as  understand meaning of above output 

Thanks in advance 
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Pradeep sonawne

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Posted 6 months ago

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Photo of Hashim Bharoocha

Hashim Bharoocha, Employee

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Hey Pradeep,

SFPs have the capability of monitoring a number of internal physical parameters that inform about the status of the device and the light link.
SFPs have the capability of monitoring a number of internal physical parameters that inform about the status of the device and the light link. The command "show optic" shows the different values as measured real time at the SFP.
These values are compared against an internal alarm setting as set by the manufacturer, and in case the warning or alarm limits are reached, an alarm flag will be set.
When optical monitoring is enabled in the device, the router will periodically monitor these flags, and when there is an issue, it will be reported in the Syslog.

Sometimes it can also be due to dust on the cables/patch panel.

-Are you having any connectivity problems due to this message?
-How long has it  been in service?
-Can you paste output of "skip","show interface eth 1/1/6" (3 times 20 seconds apart)  "show log", "show version",  "show media", "page".

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Pradeep sonawne

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HI sir,
thanks for reply, 
Connectivity from brocade to that access switch is ok, today again i took sh optic eth1/1/6
-----------------------------------------------------------------------------------
[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh optic 1/1/6
 Port   Temperature    Voltage       Tx Power      Rx Power    Tx Bias Current
+-----+-------------+-------------+-------------+-------------+---------------+
1/1/6   31.6875 C    3.2914 volts  -6.5560 dBm   -8.0604 dBm    15.592 mA
        Normal          Normal       Normal         Normal         Normal
----------------------------------------------------------------------------------------

as per yesterday's log Rx Power value was NA, and today it showing something
it become confusing to what to check

should i change the both ends OFC patch cord ?
should i change SFP module ?
or anything else to do.

i have also captured access switch up-link port state as below

GigabitEthernet1/0/25 transceiver information:
  Transceiver Type              : 1000_BASE_LX_SFP
  Connector Type                : LC
  Wavelength(nm)                : 1310
  Transfer Distance(km)         : 10(9um)
  Digital Diagnostic Monitoring : YES
  Vendor Name                   : HPE
  Ordering Name                 : JD119B
-------------------------------------------------------------------------------------
GigabitEthernet1/0/25 transceiver diagnostic information:
  Current diagnostic parameters:
    Temp.(¡ãC) Voltage(V)  Bias(mA)  RX power(dBm)  TX power(dBm)
    38         3.27        8.79      -9.02          -6.14
----------------------------------------------------------------------------------------
[WL_P1_4WH-PRESSHOP_H5120_5-108]di int gi1/0/25
 GigabitEthernet1/0/25 current state: UP
 IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 4431-9215-69fe
 Description: GigabitEthernet1/0/25 Interface
 Loopback is not set
 Media type is optical fiber, Port hardware type is 1000_BASE_LX_SFP
 1000Mbps-speed mode, full-duplex mode
 Link speed type is autonegotiation, link duplex type is autonegotiation
 Flow-control is not enabled
 The Maximum Frame Length is 10240
 Broadcast MAX-pps: 10
 Unicast MAX-ratio: 100%
 Multicast MAX-ratio: 100%
 PVID: 1
 Port link-type: trunk
  VLAN passing  : 1(default vlan), 2-5, 18, 34, 66, 74, 76, 78, 82, 99, 231, 500, 560
  VLAN permitted: 1(default vlan), 2-4094
  Trunk port encapsulation: IEEE 802.1q
 Port priority: 0
Last clearing of counters:  Never
 Peak value of input: 818286 bytes/sec, at 2018-12-27 09:04:10
 Peak value of output: 306605 bytes/sec, at 2018-12-26 18:13:26
 Last 300 seconds input:  3505 packets/sec 267216 bytes/sec 0%
 Last 300 seconds output:  194 packets/sec 179719 bytes/sec 0%
 Input (total):  139698431 packets, 10531924359 bytes
         5078581 unicasts, 132247463 broadcasts, 2372387 multicasts, 0 pauses
 Input (normal):  139698431 packets, 10531924359 bytes
         5078581 unicasts, 132247463 broadcasts, 2372387 multicasts, 0 pauses
 Input:  0 input errors, 0 runts, 0 giants, - throttles
         0 CRC, 0 frame, 0 overruns, 0 aborts
         - ignored, - parity errors
 Output (total): 9209870 packets, 9553532216 bytes
         8791820 unicasts, 348549 broadcasts, 69501 multicasts, 0 pauses
 Output (normal): 9209870 packets, 9553532216 bytes
         8791820 unicasts, 348549 broadcasts, 69501 multicasts, 0 pauses
 Output: 0 output errors, - underruns, - buffer failures
         0 aborts, 0 deferred, 0 collisions, 0 late collisions
         - lost carrier, - no carrier


--------------------------------------------------------------------------------------------------

As you mentioned i have also captured the log as below

************************************************************************************
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2018.12.27 08:58:20 =~=~=~=~=~=~=~=~=~=~=~=

[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh int eth1/1/6
GigabitEthernet1/1/6 is up, line protocol is up 
  Port up for 15 hour(s) 6 minute(s) 6 second(s) 
  Hardware is GigabitEthernet, address is 609c.9f2e.67e0 (bia 609c.9f2e.67e5)
  Configured speed 1Gbit, actual 1Gbit, configured duplex fdx, actual fdx
  Configured mdi mode AUTO, actual MDI
  Member of 18 L2 VLANs, port is dual mode in Vlan 1, port state is FORWARDING
  BPDU guard is Disabled, ROOT protect is Disabled, Designated protect is Disabled
  Link Error Dampening is Disabled
  STP configured to ON, priority is level0, mac-learning is enabled
  Openflow is Disabled, Openflow Hybrid mode is Disabled,  Flow Control is config enabled, oper enabled, negotiation disabled
  Mirror disabled, Monitor disabled
  Mac-notification is disabled
  Not member of any active trunks
  Not member of any configured trunks
  Port name is 4WH_PRESS_SHP_SW_5.108
  IPG MII 96 bits-time, IPG GMII 96 bits-time
  MTU 1500 bytes, encapsulation ethernet
  MMU Mode is Store-and-forward
  300 second input rate: 1579928 bits/sec, 201 packets/sec, 0.15% utilization
  300 second output rate: 2310408 bits/sec, 3522 packets/sec, 0.28% utilization
  3808977824 packets input, 3399274533420 bytes, 0 no buffer
  Received 251581022 broadcasts, 75032835 multicasts, 3478905540 unicasts
  0 input errors, 0 CRC, 0 frame, 0 ignored
  0 runts, 0 giants
  51070570720 packets output, 4903938933091 bytes, 0 underruns
  Transmitted 44311438065 broadcasts, 2232606813 multicasts, 4526525842 unicasts
  0 output errors, 0 collisions
  Relay Agent Information option: Disabled
  Protected: No
  MAC Port Security: Disabled

UC Egress queues:
Queue counters    Queued packets    Dropped Packets
         0          2193876558                   0
         1                   0                   0
         2                   0                   0
         3                   0                   0
         4            26555855                   0
         5            19109378                   0
         6               28971                   0
         7           145689619                   0


MC Egress queues:
Queue counters    Queued packets    Dropped Packets
         0          2165055980           102821434
         1         45188770863           163580273
         2          1121891452            73355727
         3           209592958                 687

[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh int eth1/1/6
GigabitEthernet1/1/6 is up, line protocol is up 
  Port up for 15 hour(s) 6 minute(s) 17 second(s) 
  Hardware is GigabitEthernet, address is 609c.9f2e.67e0 (bia 609c.9f2e.67e5)
  Configured speed 1Gbit, actual 1Gbit, configured duplex fdx, actual fdx
  Configured mdi mode AUTO, actual MDI
  Member of 18 L2 VLANs, port is dual mode in Vlan 1, port state is FORWARDING
  BPDU guard is Disabled, ROOT protect is Disabled, Designated protect is Disabled
  Link Error Dampening is Disabled
  STP configured to ON, priority is level0, mac-learning is enabled
  Openflow is Disabled, Openflow Hybrid mode is Disabled,  Flow Control is config enabled, oper enabled, negotiation disabled
  Mirror disabled, Monitor disabled
  Mac-notification is disabled
  Not member of any active trunks
  Not member of any configured trunks
  Port name is 4WH_PRESS_SHP_SW_5.108
  IPG MII 96 bits-time, IPG GMII 96 bits-time
  MTU 1500 bytes, encapsulation ethernet
  MMU Mode is Store-and-forward
  300 second input rate: 1567064 bits/sec, 199 packets/sec, 0.15% utilization
  300 second output rate: 2294472 bits/sec, 3505 packets/sec, 0.28% utilization
  3808979439 packets input, 3399276275037 bytes, 0 no buffer
  Received 251581135 broadcasts, 75032843 multicasts, 3478907034 unicasts
  0 input errors, 0 CRC, 0 frame, 0 ignored
  0 runts, 0 giants
  51070612925 packets output, 4903941849587 bytes, 0 underruns
  Transmitted 44311478985 broadcasts, 2232607411 multicasts, 4526526529 unicasts
  0 output errors, 0 collisions
  Relay Agent Information option: Disabled
  Protected: No
  MAC Port Security: Disabled

UC Egress queues:
Queue counters    Queued packets    Dropped Packets
         0          2193877165                   0
         1                   0                   0
         2                   0                   0
         3                   0                   0
         4            26555865                   0
         5            19109382                   0
         6               28971                   0
         7           145689694                   0


MC Egress queues:
Queue counters    Queued packets    Dropped Packets
         0          2165056392           102821434
         1         45188811941           163580273
         2          1121891745            73355727
         3           209593014                 687

[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh int eth1/1/6
GigabitEthernet1/1/6 is up, line protocol is up 
  Port up for 15 hour(s) 6 minute(s) 21 second(s) 
  Hardware is GigabitEthernet, address is 609c.9f2e.67e0 (bia 609c.9f2e.67e5)
  Configured speed 1Gbit, actual 1Gbit, configured duplex fdx, actual fdx
  Configured mdi mode AUTO, actual MDI
  Member of 18 L2 VLANs, port is dual mode in Vlan 1, port state is FORWARDING
  BPDU guard is Disabled, ROOT protect is Disabled, Designated protect is Disabled
  Link Error Dampening is Disabled
  STP configured to ON, priority is level0, mac-learning is enabled
  Openflow is Disabled, Openflow Hybrid mode is Disabled,  Flow Control is config enabled, oper enabled, negotiation disabled
  Mirror disabled, Monitor disabled
  Mac-notification is disabled
  Not member of any active trunks
  Not member of any configured trunks
  Port name is 4WH_PRESS_SHP_SW_5.108
  IPG MII 96 bits-time, IPG GMII 96 bits-time
  MTU 1500 bytes, encapsulation ethernet
  MMU Mode is Store-and-forward
  300 second input rate: 1574720 bits/sec, 199 packets/sec, 0.15% utilization
  300 second output rate: 2282480 bits/sec, 3477 packets/sec, 0.27% utilization
  3808980649 packets input, 3399277524384 bytes, 0 no buffer
  Received 251581179 broadcasts, 75032851 multicasts, 3478908192 unicasts
  0 input errors, 0 CRC, 0 frame, 0 ignored
  0 runts, 0 giants
  51070628143 packets output, 4903943182461 bytes, 0 underruns
  Transmitted 44311493218 broadcasts, 2232607738 multicasts, 4526527187 unicasts
  0 output errors, 0 collisions
  Relay Agent Information option: Disabled
  Protected: No
  MAC Port Security: Disabled

UC Egress queues:
Queue counters    Queued packets    Dropped Packets
         0          2193877627                   0
         1                   0                   0
         2                   0                   0
         3                   0                   0
         4            26555878                   0
         5            19109383                   0
         6               28971                   0
         7           145689722                   0


MC Egress queues:
Queue counters    Queued packets    Dropped Packets
         0          2165056521           102821434
         1         45188817678           163580273
         2          1121891851            73355727
         3           209593037                 687

[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh med
  media                       1Gig/10G/40G/4x10G port media type
[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh media 
Port 1/1/1:  Type  : 1G M-LX(SFP)
Port 1/1/2:  Type  : 1G M-LX(SFP)
Port 1/1/3:  Type  : 1GE M-SX(SFP)
Port 1/1/4:  Type  : 1G M-LX(SFP)
Port 1/1/5:  Type  : EMPTY
Port 1/1/6:  Type  : 1G M-LX(SFP)
Port 1/1/7:  Type  : EMPTY
Port 1/1/8:  Type  : 1G M-LX(SFP)
Port 1/1/9:  Type  : EMPTY
Port 1/1/10:  Type  : 1G M-LX(SFP)
Port 1/1/11:  Type  : EMPTY
Port 1/1/12:  Type  : 1G M-LX(SFP)
Port 1/1/13:  Type  : EMPTY
Port 1/1/14:  Type  : 1GE M-SX(SFP)
Port 1/1/15:  Type  : EMPTY
Port 1/1/16:  Type  : EMPTY
Port 1/1/17:  Type  : EMPTY
Port 1/1/18:  Type  : EMPTY
Port 1/1/19:  Type  : EMPTY
Port 1/1/20:  Type  : EMPTY
Port 1/1/21:  Type  : EMPTY
Port 1/1/22:  Type  : EMPTY
Port 1/1/23:  Type  : EMPTY
Port 1/1/24:  Type  : EMPTY
Port 1/1/25:  Type  : EMPTY
Port 1/1/26:  Type  : EMPTY
Port 1/1/27:  Type  : EMPTY
Port 1/1/28:  Type  : EMPTY
Port 1/1/29:  Type  : EMPTY
Port 1/1/30:  Type  : EMPTY
Port 1/1/31:  Type  : EMPTY
Port 1/1/32:  Type  : EMPTY
Port 1/1/33:  Type  : EMPTY
Port 1/1/34:  Type  : EMPTY
Port 1/1/35:  Type  : EMPTY
Port 1/1/36:  Type  : EMPTY
Port 1/1/37:  Type  : EMPTY
Port 1/1/38:  Type  : EMPTY
Port 1/1/39:  Type  : EMPTY
Port 1/1/40:  Type  : EMPTY
Port 1/1/41:  Type  : EMPTY
Port 1/1/42:  Type  : EMPTY
Port 1/1/43:  Type  : EMPTY
Port 1/1/44:  Type  : EMPTY
Port 1/1/45:  Type  : EMPTY
Port 1/1/46:  Type  : EMPTY
Port 1/1/47:  Type  : EMPTY
Port 1/1/48:  Type  : EMPTY
Port 1/2/1:  Type  : 10GE LR 10km (SFP+)
Port 1/2/2:  Type  : 10GE LR 10km (SFP+)
Port 1/2/3:  Type  : EMPTY
Port 1/2/4:  Type  : EMPTY
[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh media eth
  ethernet     port number
[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh media ethernet 1/1/6
Port   1/1/6: Type  : 1G M-LX(SFP)
     Vendor: RUCKUS            Version: A000
     Part# : 33211-100        Serial#: TDA11535C07Y   
[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh media ethernet 1/1/6 sh ver
  Copyright (c) 2017 Ruckus Wireless, Inc. All rights reserved.
    UNIT 1: compiled on Apr  3 2018 at 15:38:37 labeled as SPR08070b
      (29341752 bytes) from Primary SPR08070b.bin
        SW: Version 08.0.70bT213 
      Compressed Boot-Monitor Image size = 786944, Version:10.1.11T215 (spz10111)
       Compiled on Wed Dec 13 16:43:28 2017

  HW: Stackable ICX7450-48F
  Internal USB: Serial #: 9900516030800099
      Vendor: ATP Electronics, Total size = 1919 MB
==========================================================================
UNIT 1: SL 1: ICX7450-48F 48-port Management Module
      Serial  #:CYS3313M008
      License: ICX7450_L3_SOFT_PACKAGE   (LID: eauIIGIoFFN)
      License Compliance: ICX7450-PREM-LIC-SW is Compliant
      P-ASIC  0: type B548, rev 01  Chip BCM56548_A0
==========================================================================
UNIT 1: SL 2: ICX7400-4X10GF 4-port 40G Module
      Serial  #:CYV3314M0AM
==========================================================================
 1000 MHz ARM processor ARMv7 88 MHz bus
 8192 KB boot flash memory
 2048 MB code flash memory
 2048 MB DRAM
STACKID 1  system uptime is 206 day(s) 17 hour(s) 30 minute(s) 12 second(s) 
The system started at 10:12:08 GMT+05:30 Sun Jun 03 2018

The system : started=cold start   

[email protected]_P1_D4-4WH-FA_L3-B7450_2.30#sh log
Syslog logging: enabled ( 0 messages dropped, 1 flushes, 1 overruns)
    Buffer logging: level ACDMEINW, 1000 messages logged
    level code: A=alert C=critical D=debugging M=emergency E=error
                I=informational N=notification W=warning

Dynamic Log Buffer (1000 lines):
Dec 27 08:59:28:I:Security: SSH login by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 to PRIVILEGED EXEC mode using RSA as Server Host Key.
Dec 27 08:58:22:I:Security: SSH logout by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 from PRIVILEGED EXEC mode using RSA as Server Host Key.
Dec 27 08:56:58:I:Security: SSH login by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 to PRIVILEGED EXEC mode using RSA as Server Host Key.
Dec 27 08:56:56:I:Security: SSH login by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 to USER EXEC mode using RSA as Server Host Key.

Dec 26 17:51:38:I:STP: VLAN 500 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 500 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 66 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 66 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 231 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 231 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 5 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:38:I:STP: VLAN 5 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 99 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 99 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 4 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 4 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 98 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 98 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 3 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 3 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 82 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 82 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 2 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 2 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 78 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 78 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 76 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 76 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 74 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 74 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 560 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 560 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 72 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 72 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 501 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 501 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 71 Port 1/1/6 Bridge TC Event (DOT1wTransition)
Dec 26 17:51:37:I:STP: VLAN 71 Port 1/1/6 STP State -> FORWARDING (DOT1wTransition)
Dec 26 17:51:23:I:STP: VLAN 500 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:23:I:STP: VLAN 66 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 231 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 5 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 99 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 4 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 98 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 3 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 82 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 2 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 78 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 76 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 74 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 560 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 72 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 501 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)
Dec 26 17:51:22:I:STP: VLAN 71 Port 1/1/6 STP State -> LEARNING (DOT1wTransition)

Dec 26 17:51:07:I:STP: VLAN 560 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 501 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 500 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 231 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 99 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 98 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 82 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 78 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 76 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 74 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 72 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 71 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 66 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 5 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 4 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 3 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:STP: VLAN 2 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:07:I:System: Interface ethernet 1/1/6, state up
Dec 26 17:51:06:I:System: Interface ethernet 1/1/6, state down
Dec 26 17:51:06:I:STP: VLAN 560 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 560 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 560 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 501 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 501 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 501 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 500 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 500 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 500 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 231 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 231 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 231 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 99 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 99 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 99 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 98 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 98 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 98 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 82 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 82 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 82 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 78 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 78 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 78 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 76 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 76 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 76 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 74 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 74 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 74 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 72 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 72 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 72 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 71 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 71 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 71 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 66 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 66 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 66 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 5 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 5 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 5 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 4 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 4 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 4 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 3 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 3 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 3 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:51:06:I:STP: VLAN 2 Port 1/1/6 STP State -> DISABLED (PortDown)
Dec 26 17:51:06:I:STP: VLAN 2 Port 1/1/6 STP State -> BLOCKING (DOT1wTransition)
Dec 26 17:51:06:I:STP: VLAN 2 Port 1/1/6 STP State -> FORWARDING (PortDown)
Dec 26 17:48:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:48:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 17:42:30:I:Security: SSH timed out by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 from USER EXEC mode using RSA as Server Host Key.
Dec 26 17:40:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:40:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 17:32:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:32:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 17:24:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:24:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 17:16:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:16:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 17:13:26:I:Security: SSH logout by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 from PRIVILEGED EXEC mode using RSA as Server Host Key.
Dec 26 17:08:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:08:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 17:07:19:I:Security: SSH login by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 to PRIVILEGED EXEC mode using RSA as Server Host Key.
Dec 26 17:07:17:I:Security: SSH login by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 to USER EXEC mode using RSA as Server Host Key.
Dec 26 17:00:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 17:00:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 16:52:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 16:52:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 26 16:44:10:I:    Latched low RX Power warning, port 1/1/6
Dec 26 16:44:10:I:    Latched low RX Power alarm, port 1/1/6
Dec 23 10:52:50:I:Security: Time is updated by NTP server "10.20.2.42" from  "10:52:49.761 GMT+05:30 Sun Dec 23 2018 " to "10:52:50.053 GMT+05:30 Sun Dec 23 2018 "
Dec 21 22:01:09:I:Security: Time is updated by NTP server "10.20.2.42" from  "22:01:08.872 GMT+05:30 Fri Dec 21 2018 " to "22:01:09.875 GMT+05:30 Fri Dec 21 2018 "
Dec 20 17:09:16:I:Security: SSH timed out by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 from PRIVILEGED EXEC mode using RSA as Server Host Key.
Dec 20 16:44:49:I:Security: SSH login by networkadmin from src IP 10.12.2.112 from src MAC cc4e.24f3.29c8 to PRIVILEGED EXEC mode using R
Photo of Hashim Bharoocha

Hashim Bharoocha, Employee

  • 19 Posts
  • 11 Reply Likes

Hey Pradeep,

The version of code looks good so related defect is ruled out.

I see you have similar optics on other ports.

I see no errors or high utilizations on the port 1/1/6.

Optical signal looks good too.

We need to check the opposite side of 1/1/6 as 1/1/6 is complaining about receiving low power from other end of 1/1/6.
Try to remove the Optic module on other end of 1/1/6 and reinsert it.  See if issue is gone, if not then,
please clean the optics/fibers, on both ends. If issue persists then:
 
Please try to use known good cable, I see other ports with same optics. We can flip flop a port and see what port the problem follows and eliminate the bad cable or optic.
 
I hope this helps, if not please open a ticket and provide the steps we have taken so far to avoid redundant troubleshooting.

Best Regards
Thanks
Hashim


Photo of Pradeep sonawne

Pradeep sonawne

  • 11 Posts
  • 0 Reply Likes
Hi Sir,

inspite of error cleared itself
I have cleaned the dust and swapped the SFP to cross check whether its SFP or OPTIC cable issue , i hope one of port will pop up the error if there is an issue.

Thanks for your time and help.



Photo of Hashim Bharoocha

Hashim Bharoocha, Employee

  • 19 Posts
  • 11 Reply Likes

Most Welcome Pradeep, the pleasure is mine in working with you.


Wish you a prosperous, healthy and  Happy New year in advance.


Best Regards

Hashim
Photo of Pradeep sonawne

Pradeep sonawne

  • 11 Posts
  • 0 Reply Likes
Wish you too, "happy new year"

Photo of Hashim Bharoocha

Hashim Bharoocha, Employee

  • 19 Posts
  • 11 Reply Likes
Thanks Pradeep!