09-27-2012 08:19 AM - edited 03-04-2019 05:41 PM
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)
09-30-2012 08:59 PM
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.
02-12-2014 01:34 AM
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
02-12-2014 10:48 AM
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
02-14-2014 03:56 AM
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.
12-07-2018 12:51 AM
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
04-05-2019 11:02 AM
you can't do it per interface, go out to pre interface config and run same
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