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Interface SFP not connected but connected

DENNIS BAAS
Level 1
Level 1

Hi,

 

I have a server with two Intel x552 SFP+ interfaces. These contain 2 Intel 1Gb/10Gb dual speed SFPs (Intel official). The server is running ESX and it states that the interfaces are connected, running 1Gb.

 

[root@esx05:~] esxcli network nic get -n vmnic3
Advertised Auto Negotiation: false
Advertised Link Modes: 1000BaseX/Full, 10000BaseX/Full
Auto Negotiation: false
Cable Type: FIBRE
Current Message Level: 0
Driver Info:
Bus Info: 0000:04:00:1
Driver: ixgben
Firmware Version: 0x800005b9
Version: 1.8.7
Link Detected: true
Link Status: Up
Name: vmnic3
PHYAddress: 0
Pause Autonegotiate: false
Pause RX: true
Pause TX: true
Supported Ports: FIBRE
Supports Auto Negotiation: false
Supports Pause: true
Supports Wakeon: false
Transceiver:
Virtual Address: 00:50:56:55:7c:6a
Wakeon: None
[root@esx05:~]

 

And:

Status
StatusConnected
Actual speed, Duplex1 Gbit/s, Full Duplex
Configured speed, Duplex1 Gbit/s, Full Duplex
NetworksNo networks

 

The other side is connected is connected to a 2960x SFP port, containing a GLC-SX-MMD. But I also tried a 2960S. Both switch run the latest IOS. Cables used are OM3 MM (2m)

On the Cisco side, is shows 'notconnect':

 

Port Name Status Vlan Duplex Speed Type
Gi1/0/28 --> ESX05_storage1 notconnect trunk auto auto 1000BaseSX SFP

 

However, running diagnostics, it shows a connection:

 

2960X#sh int tra
If device is externally calibrated, only calibrated values are printed.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
NA or N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).

Optical Optical
Temperature Voltage Tx Power Rx Power
Port (Celsius) (Volts) (dBm) (dBm)
--------- ----------- ------- -------- --------
Gi1/0/28 44.1 3.31 -6.4 -3.3


2960X#

 

SFP info:

2960X#sh idprom int gi1/0/28 det

General SFP Information
-----------------------------------------------
Identifier : 0x03
Connector : 0x07
Transceiver : 0x00 0x00 0x00 0x01 0x00 0x00 0x00 0x00
Encoding : 0x01
BR_Nominal : 0x0D
Vendor Name : CISCO
Vendor Part Number : TRPUG1ESXECISE2G
Vendor Revision : 0x30 0x31 0x20 0x20
Vendor Serial Number : OPM230326BP
-----------------------------------------------

 

If I switch cable end, I get a -40 value for the diagnostics (no connection) so I think I can assume cabling is okay.

 

The port config is:

interface GigabitEthernet1/0/28
switchport trunk allowed vlan 98,99,101,102
switchport mode trunk
switchport nonegotiate
spanning-tree portfast edge trunk
end

 

Also tried with switchport nonegotiate.

What could be the issue?

2 Replies 2

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

Can you try a different SFP port on the switch? Maybe Gi1/0/26?

HTH

Hi Reza,

 

thanks for reply.

 

What I have tried during my investigation:

 

- Other SFP (GLC-SX-MMD) on Cisco side

- Other SFP (Intel certified) on Intel NIC side

- GLC-SX-MMD in Intel adapter (it is stated on various sites this one is also accepted by the Intel card) (so GLC-SX-MMD on both sides of the fiber)

- Updated driver on ESXi side

- Other port on 2960X (1/0/27)

- Other switch (2960S) (as mentioned in original post)

- Downgraded IOS version on 2960S (from 15.2(2)E9 to 15.2(2)E8), because I thought it might have something to do with CSCvf56802, and upgraded again

- Changed fiber cable

- Interchanged fibers on fiber cable (as mentioned in original post)

 

Every step was followed bij a reboot of both the server and the switch.

But still: no happy ending.

 

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