3

I have cisco Nexus 3048TP switch (48x1G + 4x10G)

Hardware
  cisco Nexus 3048 Chassis ("48x1GE + 4x10G Supervisor")
  Intel(R) Celeron(R) CPU        P4505  @ 1.87GHz with 3665240 kB of memory.
  Processor Board ID FOC17237JKC

I am seeing this error on port e1/49 which is 10G port and i have connected 10G SFP+ transceiver

 Ethernet1/49 is down (SFP validation failed)
     Dedicated Interface
      Hardware: 1000/10000 Ethernet, address: f872.eaae.36b8 (bia f872.eaae.36b8)
      MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec
      reliability 255/255, txload 1/255, rxload 1/255
      Encapsulation ARPA
      Port mode is access
      auto-duplex, 10 Gb/s, media type is 10G

As per documentation they said you need to set speed so i did and got this error

n3k(config)# int e1/49
n3k(config-if)# speed 10000
ERROR: Ethernet1/49: Configuration does not match the port capability.

Interface capability

n3k# sh int e1/49 capabilities
Ethernet1/49
  Model:                 N3K-C3048TP-1GE-SUP
  Type (SFP capable):    Unknown Type-(unknown)
  Speed:                 10000
  Duplex:                full
  Trunk encap. type:     802.1Q
  Channel:               yes
  Broadcast suppression: percentage(0-100)
  Flowcontrol:           rx-(off/on),tx-(off/on)
  Rate mode:             none
  QOS scheduling:        rx-(6q1t),tx-(1p6q0t)
  CoS rewrite:           no
  ToS rewrite:           no
  SPAN:                  yes
  UDLD:                  yes
  MDIX:                  no
  Link Debounce:         yes
  Link Debounce Time:    yes
  Pvlan Trunk capable:   no
  TDR capable:           no
  FabricPath capable:    no
  Port mode:             Routed,Switched
  FEX Fabric:            no

This switch located in remote datacenter so i can't re-seed until i have resources available, is there anything else i can do remotely?

  • What kind of SPF is in the port? – Ron Trunk Sep 11 '18 at 20:34
  • FS fs.com/products/11552.html I have 5000 SFP running in datacenter on all kind of hardware also i have same model of switch in other datacenter and that running fine with same model of SFP, I can guarantee its not SFP+ issue.. its something related to configuration – Satish Sep 11 '18 at 20:36
  • 2
    Sixteen dollars? You get what you pay for, Satish. – Ron Trunk Sep 11 '18 at 20:39
  • It could certainly be a bad SFP, or you have a different hardware or software version in the switch that simply rejects this SFP.. – Ron Maupin Sep 11 '18 at 20:42
  • Believe me we have 50 nexus switches and 5 ASR routes and all running on same SFP+ and they all fine.. even my other datacenter has Nexus 3048 switch running on same model of SFP.. do you still this it's SFP issue? I have working switch on same model – Satish Sep 11 '18 at 20:43
5

Solved:

After reboot switch it fixed my issue, Now its showing SFP Type 10Gbase-SR

n3k# show int e1/49 capabilities
Ethernet1/49
  Model:                 N3K-C3048TP-1GE-SUP
  Type (SFP capable):    10Gbase-SR
  Speed:                 10000
  Duplex:                full
  Trunk encap. type:     802.1Q
  Channel:               yes

Look like you need to set speed first before inserting SFP.

Quote from cisco documentation:

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.