GLC-T error SFP validation failed on Nexus 5548

sachin.sg · ‎10-19-2012

We inserted GLC-T modules and on Nexus 5548 they are showing SFP validation Failed , as per Cisco doc GLC-T is support . Can any one help me out in fixing this , since we have 28 such modules and all after inserting showing same error. please see the below details.
I also try configuring speed and inserting modules but no result ..

Please let me know whether my GLC-T module is supported on Nexus 5548

INMUMFDS1SWCORE01# show module

Mod Ports Module-Type Model Status

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

1 32 O2 32X10GE/Modular Supervisor N5K-C5548P-SUP active *

2 16 O2 16X10GE Ethernet Module N55-M16P ok

3 0 O2 Daughter Card with L3 ASIC N55-D160L3 ok

Mod Sw Hw World-Wide-Name(s) (WWN)

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

1 5.0(3)N2(1) 1.0 --

2 5.0(3)N2(1) 1.0 --

3 5.0(3)N2(1) 1.0 --

INMUMFDS1SWCORE01# show int brief

|

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

Ethernet VLAN Type Mode Status Reason Speed Port

Interface Ch #

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

Eth1/1 1 eth trunk up none 10G(D) 10

Eth1/2 1 eth trunk up none 10G(D) 10

Eth1/3 1 eth fabric up none 10G(D) 100

Eth1/4 1 eth fabric up none 10G(D) 101

Eth1/5 1 eth trunk up none 10G(D) --

Eth1/6 1 eth trunk up none 10G(D) --

Eth1/7 1 eth access down Link not connected 10G(D) --

Eth1/8 1 eth access down Link not connected 10G(D) --

Eth1/9 1 eth access down Link not connected 10G(D) --

Eth1/10 1 eth access down Link not connected 10G(D) --

Eth1/11 1 eth access down Link not connected 10G(D) --

Eth1/12 1 eth access down Link not connected 10G(D) --

Eth1/13 1 eth access down Link not connected 10G(D) --

Eth1/14 1 eth access down Link not connected 10G(D) --

Eth1/15 1 eth trunk up none 10G(D) --

Eth1/16 1 eth access down Link not connected 10G(D) --

Eth1/17 902 eth access down SFP not inserted 10G(D) --

Eth1/18 1 eth access down SFP not inserted 10G(D) --

Eth1/19 1 eth access down SFP not inserted 10G(D) --

Eth1/20 1 eth access down SFP not inserted 10G(D) --

Eth1/21 1 eth access down SFP not inserted 10G(D) --

Eth1/22 1 eth access down SFP not inserted 10G(D) --

Eth1/23 1 eth access down SFP not inserted 10G(D) --

Eth1/24 1 eth access down SFP not inserted 10G(D) --

Eth1/25 1 eth access down SFP not inserted 10G(D) --

Eth1/26 1 eth access down SFP not inserted 10G(D) --

Eth1/27 1 eth access down SFP not inserted 10G(D) --

Eth1/28 1 eth access down SFP not inserted 10G(D) --

Eth1/29 1 eth access down SFP not inserted 10G(D) --

Eth1/30 1 eth access down SFP not inserted 10G(D) --

Eth1/31 1 eth access down SFP not inserted 10G(D) --

Eth1/32 1 eth access down SFP not inserted 10G(D) --

Eth2/1 902 eth access down SFP validation failed 1000(D) --

Eth2/2 1 eth access down SFP validation failed 10G(D) --

Eth2/3 1 eth access down SFP validation failed 10G(D) --

Eth2/4 1 eth access down SFP validation failed 10G(D) --

Eth2/5 1 eth access down SFP validation failed 10G(D) --

Eth2/6 1 eth access down SFP validation failed 10G(D) --

Eth2/7 1 eth access down SFP validation failed 10G(D) --

Eth2/8 1 eth access down SFP validation failed 10G(D) --

Eth2/9 1 eth access down SFP validation failed 10G(D) --

Eth2/10 1 eth access down SFP validation failed 10G(D) --

Eth2/11 1 eth access down SFP validation failed 10G(D) --

Eth2/12 1 eth access down SFP validation failed 10G(D) --

Eth2/13 1 eth access down SFP validation failed 10G(D) --

Eth2/14 1 eth access down SFP validation failed 10G(D) --

Eth2/15 1 eth access down SFP not inserted 10G(D) --

Eth2/16 1 eth access down SFP not inserted 10G(D) --

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

show interface transreceiver output sample

Ethernet2/1

transceiver is present

type is 10Gbase-LR

name is CISCO-FINISAR

part number is GLC-T

revision is 1.0

serial number is MTC13360123

nominal bitrate is 3200 MBit/sec

Link length supported for 9/125um fiber is 32 km

Link length supported for 9/125 um fiber is 3200 m

Link length supported for 50/125um fiber is 320 m

Link length supported for 62.5/125um fiber is 320 m

Link length supported for copper is 32 m

cisco id is --

cisco extended id number is 4

Ethernet2/2

transceiver is present

type is 10Gbase-LR

name is CISCO-FINISAR

part number is GLC-T

revision is 1.0

serial number is MTC13360106

nominal bitrate is 3200 MBit/sec

Link length supported for 9/125um fiber is 32 km

Link length supported for 9/125 um fiber is 3200 m

Link length supported for 50/125um fiber is 320 m

Link length supported for 62.5/125um fiber is 320 m

Link length supported for copper is 32 m

cisco id is --

cisco extended id number is 4

Ethernet2/3

transceiver is present

type is 10Gbase-LR

name is CISCO-FINISAR

part number is GLC-T

revision is 1.0

serial number is MTC13360133

nominal bitrate is 3200 MBit/sec

Link length supported for 9/125um fiber is 32 km

Link length supported for 9/125 um fiber is 3200 m

Link length supported for 50/125um fiber is 320 m

Link length supported for 62.5/125um fiber is 320 m

Link length supported for copper is 32 m

cisco id is --

cisco extended id number is 4

allan.thomas · ‎10-20-2012

Hi,

Please refer to the following link regarding configuring networking interfaces, the issue here is that the interfaces are configured for 10Gb and do not auto sense if you change the SPF, you need to manually configure the speed to 1000:

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/BasicEthernet.html#wp1266647

Regards
Allan

Please rate helpful posts, thank you.

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sachin.sg · ‎10-20-2012

I tried same things as per document stil not able to fix the issue.

Please help

I configured speed 1000 and then inserted the module , still the error is SFP validation failed

Reza Sharifi · ‎10-20-2012

Hi,

couple of things to check

What version of software are you running?

I know you need at least Cisco NX-OS 5.0(3)N1(1) to support GLC-T

If the softare is up to date, than it is comparability issue, try a different GLC-T from a different vendor:

HTH

allan.thomas · ‎10-20-2012

Hi,

You are running a supported release, as support was introduced in 5.0.3(N1)1 as mentioned in the previous post which you mentioned in your original post. the issue shouldn't be attributed to the version of Nxos but rather the Gbics you are using so specifying the speed should have worked for you. Incidentally did you do a 'shut' and a 'no shut' once the Gbic was connected after specifying the speed, as in some cases the interface could be error disabled.

Can you post the output of a 'show int eth?/? Transceiver calibrations' like I the example below:

N5K# sh int eth1/21 transceiver calibrations
Ethernet1/21
transceiver is present
type is SFP-1000BASE-T
name is CISCO-METHODE
part number is SP7041_Rev_F
revision is F
serial number is 00000MTC162802H3
nominal bitrate is 1300 MBit/sec
Link length supported for copper is 100 m
cisco id is --
cisco extended id number is 4

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sachin.sg · ‎10-20-2012

hi

I have done shut & no shut before and after inserting the module also but the result is same

As you requested the infor please find below

Ethernet2/1

transceiver is present

type is 10Gbase-LR

name is CISCO-FINISAR

part number is GLC-T

revision is 1.0

serial number is MTC13360008

nominal bitrate is 3200 MBit/sec

Link length supported for 9/125um fiber is 32 km

Link length supported for 9/125 um fiber is 3200 m

Link length supported for 50/125um fiber is 320 m

Link length supported for 62.5/125um fiber is 320 m

Link length supported for copper is 32 m

cisco id is --

cisco extended id number is 4

Transceiver calibration is invalid

Ethernet2/2

transceiver is present

type is 10Gbase-LR

name is CISCO-FINISAR

part number is GLC-T

revision is 1.0

serial number is MTC13360128

nominal bitrate is 3200 MBit/sec

Link length supported for 9/125um fiber is 32 km

Link length supported for 9/125 um fiber is 3200 m

Link length supported for 50/125um fiber is 320 m

Link length supported for 62.5/125um fiber is 320 m

Link length supported for copper is 32 m

cisco id is --

cisco extended id number is 4

Transceiver calibration is invalid

Ethernet2/3

transceiver is present

type is 10Gbase-LR

name is CISCO-FINISAR

part number is GLC-T

revision is 1.0

serial number is MTC13360139

nominal bitrate is 3200 MBit/sec

Link length supported for 9/125um fiber is 32 km

Link length supported for 9/125 um fiber is 3200 m

Link length supported for 50/125um fiber is 320 m

Link length supported for 62.5/125um fiber is 320 m

Link length supported for copper is 32 m

cisco id is --

cisco extended id number is 4

--More--

allan.thomas · ‎10-21-2012

Hi,

The question at this point is whether the SFPs are from a supported manufacturer? There is an unsupported command that you can use 'service unsupported transceiver', if you enable this command this will only help you to determine the validity of the SFP as it will bypass the validation checks. At no point should you continue to use this command in production as it is not supported by TAC, please also see the following link referring to the use of this command by Cisco employees. If the SFPs still do not pass the validity I strongly urge you to escalate the matter to Cisco TAC for further and assistance:

https://supportforums.cisco.com/thread/2014677

Regards
Allan

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noisey_uk · ‎01-13-2016

What Allan said. NB. make sure the interface isn't a member of a port-channel otherwise the interface speed command will not be available.

Soleymani · ‎01-19-2016

Hello See this link :

https://supportforums.cisco.com/discussion/12753031/nexux-5020-glc-t-problem#comment-11086381

Regards Armen