Nexus 7K Configuration Questions

[dmooregfb]

I have several questions about the Nexus 7K. I am attempting to connect to a Nexus 5548 using a 10Gig interface.

I am using FINISAR 10Gbase-SR on both sides with 50/125um fiber. I am unable to get the interfaces up on either device. Is FINISAR a qualified transceiver? I am unable to find anything to the negative. Cisco 3 meter cables use CISCO-FINISAR type connectors.

Thanks ahead of time for any input!

Dave

The connection is from the 7K on Port e9/2 to 5K Port e1/3

5K -

interface Ethernet1/3

  description Fiber connectgion to Nexus 7009 --> Port e9/2

  switchport mode trunk

Nexus5000-1# sh int e1/3

Ethernet1/3 is down (SFP validation failed)

7k - VDC - Default

int e8/1 is connected to VDC2 to e9/1

7K - VDC2=Production Membership is e9/1-4

interface Ethernet9/2
  switchport
  switchport mode trunk
  no shutdown

Ethernet9/2
    transceiver is present
    type is 10Gbase-SR
    name is FINISAR CORP.  
    part number is FTLX8571D3BCL  
    revision is --
    serial number is AMF0S00        
    nominal bitrate is 10300 MBit/sec
    Link length supported for 50/125um OM2 fiber is 82 m
    Link length supported for 50/125um OM3 fiber is 300 m
    cisco id is --
    cisco extended id number is 4

Ethernet9/2 is down (SFP checksum error)
  Dedicated Interface
  Hardware: 1000/10000 Ethernet, address: 6c9c.ed4e.b9c2 (bia d867.d901.2915)

[huangedmc]

While Finisar is one of Cisco's OEM manufacturers that produce their SFP's, you need to have a Cisco branded SFP for the interface to come up.

Nowadays the newer platforms perform a check against the hardware module to make sure it's Cisco.

If not, the switch would shut it down, which I believe is your case.

[Parmanand Patil]

I was working to configure port channel for one of the 5k switch whare the 10gig port was not coming up.

here switch is detecting the part number is FTLX8571D3BCL-HP SFP but throwing checksum error.

we dont hav additional SFP on that site

Sw1#show Ethernet1/13

Ethernet1/13 is down (SFP checksum error)

Dedicated Interface

  Belongs to Po10

  Hardware: 1000/10000 Ethernet, address: 002a.6a5f.6534 (bia 002a.6a5f.6534)

  Description: #connected to # ta28cvmda01 #

  MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec

  reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA

  Port mode is trunk

  auto-duplex, 10 Gb/s, media type is 10G

Sw1# show interface e1/13 transceiver

Ethernet1/13

    transceiver is present

    type is 10Gbase-SR

    name is FINISAR CORP.

    part number is FTLX8571D3BCL-HP

    revision is A

    serial number is AQD0V6D

    nominal bitrate is 10300 MBit/sec

    Link length supported for 50/125um OM2 fiber is 82 m

    Link length supported for 50/125um OM3 fiber is 300 m

    cisco id is --

    cisco extended id number is 4

[dmooregfb]

This corrected my problem: you can type "service unsupported-transceiver" which allow you to use non-cisco SFP's

Let me know

Sent from Cisco Technical Support iPad App

[Parmanand Patil]

Thanks, dmooregfb

I got below warning but I can use the non cisco SFP now

5K05(config-if)# service unsupported-transceiver

Warning: When Cisco determines that a fault or defect can be traced to the use of third-party transceivers install                 ed by a customer or reseller, then, at Cisco's discretion, Cisco may withhold support under warranty or a Cisco

support program. In the course of providing support for a Cisco networking product Cisco may require that the end user install Cisco transceivers if Cisco determines that removing third-party parts will assist Cisco in diagnosing  the cause of a support issue.

[sayed afdhal]

hi 

i want to ask, i have same problem when used sfp hp. interface status SFP checksum error

when i want put configure 

N9K(config-if)# service unsupported-transceiver

this command cant support apply in interface.

do you have any suggestion about this my problems.'

thank 

[Warrenx]

you can't do it per interface, go out to pre interface config and run same