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New Member

Nexus 5596 SFP Issue

We have a pair of Nexus 5596 switches, that each have a 1 gigabit conection to ISP CE switches (ME3400).

Switch 1 has a fibre connection using GLC-SX-MM with the following information...

sh int e1/48 trans

Ethernet1/48

    transceiver is present

    type is SFP-1000BASE-SX

    name is CISCO-AVAGO

    part number is SFBR-5766PZ-CS2

    revision is

    serial number is AGA1549L2BE

    nominal bitrate is 1300 MBit/sec

    cisco id is --

    cisco extended id number is 4

I cannot get the port to come up on switch 2, transceiver info...

sh int e1/48 trans

Ethernet1/48

    transceiver is present

    type is SFP-1000BASE-SX

    name is CISCO-AVAGO

    part number is SFBR-5766PZ-CS2

    revision is

    serial number is AGA1549L2BE

    nominal bitrate is 1300 MBit/sec

    cisco id is --

    cisco extended id number is 4

The port is up on the ISP switch, but down on the N5K...

Ethernet1/48 is down (Link not connected)

  Hardware: 1000/10000 Ethernet, address: 547f.ee41.e337 (bia 547f.ee41.e337)

  Description: Intech WAN ME3400-1 (BT)

  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec

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

  Encapsulation ARPA

  Port mode is trunk

  full-duplex, 1000 Mb/s, media type is 10G

  Beacon is turned off

  Input flow-control is off, output flow-control is off

  Rate mode is dedicated

  Switchport monitor is off

  EtherType is 0x8100

  Last link flapped 00:31:00

  Last clearing of "show interface" counters 00:00:47

  30 seconds input rate 0 bits/sec, 0 packets/sec

  30 seconds output rate 0 bits/sec, 0 packets/sec

  Load-Interval #2: 5 minute (300 seconds)

    input rate 242.30 Gbps, 163.37 Mpps; output rate 63.30 Gbps, 231.54 Mpps

  RX

    17828772964 unicast packets  2506759 multicast packets  991 broadcast packets

    17831280714 input packets  3305852407174 bytes

    897530002 jumbo packets  0 storm suppression bytes

    20 runts  0 giants  0 CRC  0 no buffer

    20 input error  0 short frame  0 overrun   0 underrun  0 ignored

    0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop

    0 input with dribble  0 input discard Ethernet1/48 is down (Link not connected)
  Hardware: 1000/10000 Ethernet, address: 547f.ee41.e337 (bia 547f.ee41.e337)
  Description: Intech WAN ME3400-1 (BT)
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
  reliability 255/255, txload 255/255, rxload 255/255
  Encapsulation ARPA
  Port mode is trunk
  full-duplex, 1000 Mb/s, media type is 10G
  Beacon is turned off
  Input flow-control is off, output flow-control is off
  Rate mode is dedicated
  Switchport monitor is off
  EtherType is 0x8100
  Last link flapped 00:31:00
  Last clearing of "show interface" counters 00:00:47
  30 seconds input rate 0 bits/sec, 0 packets/sec
  30 seconds output rate 0 bits/sec, 0 packets/sec
  Load-Interval #2: 5 minute (300 seconds)
    input rate 242.30 Gbps, 163.37 Mpps; output rate 63.30 Gbps, 231.54 Mpps
  RX
    17828772964 unicast packets  2506759 multicast packets  991 broadcast packets
    17831280714 input packets  3305852407174 bytes
    897530002 jumbo packets  0 storm suppression bytes
    20 runts  0 giants  0 CRC  0 no buffer
    20 input error  0 short frame  0 overrun   0 underrun  0 ignored
    0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop
    0 input with dribble  0 input discard

I have tested the SFP's in use on a pair of 2960's & they work fine!

If i replace the SFP's for copper, then they work fine also.

Does anyone know of any incompatibility issue with this SFP?

Thanks

Colin

  • Server Networking
Everyone's tags (3)
8 REPLIES

Re: Nexus 5596 SFP Issue

Make sure you have set the speed to 1000 ( speed 1000) on the interface and that you have at least 5.0.3 version or later of NX-OS

New Member

Re: Nexus 5596 SFP Issue

interface Ethernet1/48

  switchport mode trunk

  switchport trunk allowed vlan 101,201

  speed 1000

  duplex full

Software

  BIOS:      version 3.5.0

  loader:    version N/A

  kickstart: version 5.1(3)N1(1)

  system:    version 5.1(3)N1(1)

Bronze

Re: Nexus 5596 SFP Issue

Did you try removing "duplex full" command and use "duplex auto"? nexus 5500 never autonegotiate to half duplex in anycase.

New Member

Re: Nexus 5596 SFP Issue

yes tried that.

then removed all config from the interface & re added line by line

New Member

Re: Nexus 5596 SFP Issue

Did you try a different port such as e1/1?  Sounds like a bug to me

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/data_sheet_c78-618603.html

Table 2.

Cisco Nexus 5500 Platform Transceiver Support Matrix

New Member

Re: Nexus 5596 SFP Issue

We had limited time during the change window.

That is the next step & to also swap with a known working SFP!

New Member

Nexus 5596 SFP Issue

We had same issue recently:

Our ME3400-12 (uni port)

connected to non-Cisco device.

Our port was up (SFP GLC-LH-SM), their port was down.

It was bad SFP on our end, I will RMA it.

In your case it looks like ISP issue - I don't know how much power you have to push them to replace SFP.

VK

New Member

Nexus 5596 SFP Issue

This issuw was a problem with the swich.

Once an RMA was performed & switch replaced then isse was solved

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