Just to add this is what happens if i move from 47 to 49 - and going back to 47

May 31 20:30:07 %S3148P:1 %IFAGT-5-INSERT_OPTICS: Optics SFP inserted in slot 1 port 47

May 31 20:37:54 %S3148P:1 %IFAGT-5-INSERT_OPTICS: Optics SFP inserted in slot 1 port 49
May 31 20:37:56 %STKUNIT1-M:CP %IFMGR-5-OSTATE_UP: Changed interface state to up: Te 1/49

mid-rack4-sw1(conf)#May 31 20:39:55 %STKUNIT1-M:CP %IFMGR-5-OSTATE_DN: Changed interface state to down: Te 1/49
May 31 20:39:59 %S3148P:1 %IFAGT-5-REMOVED_OPTICS: Optics SFP removed in slot 1 port 49
May 31 20:40:02 %S3148P:1 %IFAGT-5-INSERT_OPTICS: Optics SFP inserted in slot 1 port 47

nothing happens on port 47 

ColinPuk,

Would you confirm which fiber transceiver you're using and what is it connecting to? Also, you may want to consider trying the auto/hybrid mode and see if that works. This is certainly odd that it works on port 49 and not 47.

Let me know what you see.

Hi Chris,

I have changed the port back to auto/hybrid - still no luck

The Transceiver is dell supplied  for this project 

mid-rack4-sw1#show interface gigabitethernet 1/47 transceiver
Interface Name : GigabitEthernet 1/47
SFP is present
SFP 3080192 Serial Base ID fields
SFP 3080192 Id = 0x03
SFP 3080192 Ext Id = 0x04
SFP 3080192 Connector = 0x07
SFP 3080192 Transceiver Code = 0x00 0x00 0x00 0x01 0x20 0x40 0x0 c 0x05
SFP 3080192 Encoding = 0x01
SFP 3080192 BR Nominal = 0x15
SFP 3080192 Length(SFM) Km = 0x00
SFP 3080192 Length(SFM) 100m = 0x00
SFP 3080192 Length(OM3) 10m = 0x00
SFP 3080192 Length(OM2) 10m = 0x1e
SFP 3080192 Length(OM1) 10m = 0x0f
SFP 3080192 Length(Copper-1m/AOC-1m/OM4-10m) = 0x00
SFP 3080192 Vendor Rev = A
SFP 3080192 Laser Wavelength = 850 nm
SFP 3080192 CheckCodeBase = 0x86
SFP 3080192 Serial Extended ID fields
SFP 3080192 Options = 0x00 0x1a
SFP 3080192 BR max = 0
SFP 3080192 BR min = 0
SFP 3080192 Vendor SN = N8FBCMK
SFP 3080192 Datecode = 221014
SFP 3080192 CheckCodeExt = 0xe6
SFP 3080192 Extended Transceiver Code = 0x00

SFP 3080192 Diagnostic Information

From the look of it, the transceiver seems fine.

Would you confirm a couple other things, such as what you're connecting the switch to, and if it is also a 1G connection?

Also, if you run the command "show ip interface brief" does it show the status and protocol as down?

Hi at the other end is an Aruba 6000 - connected at 1gb using om4 mm - this seems not to be the issue as the link comes up using port 49.

GigabitEthernet 1/47 is down, line protocol is down
Hardware is DellEth, address is 34:73:5a:17:a5:ce
Current address is 34:73:5a:17:a5:ce
Pluggable media present, SFP type is 1000BASE-SX
Wavelength is 850nm
SFP receive power reading is -4.9147dBm
No transmit power
Interface index is 2103043
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :34735a17a5ce
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed auto
Flowcontrol rx off tx off
Energy Efficient Ethernet: Not Applicable
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 6d21h1m
Queueing strategy: fifo
Input Statistics:
0 packets, 0 bytes
0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts, 0 Unicasts

mid-rack4-sw1#configure terminal
mid-rack4-sw1(conf)#interface gigabitethernet 1/47
mid-rack4-sw1(conf-if-gi-1/47)#combo-port-type fibe

All configurations on this port will be flushed.
Wish to proceed? [confirm yes/no]: Wish to proceed? [confirm yes/no]:y
mid-rack4-sw1(conf-if-gi-1/47)#no ip address
mid-rack4-sw1(conf-if-gi-1/47)#portmode hybrid
mid-rack4-sw1(conf-if-gi-1/47)#switchport
mid-rack4-sw1(conf-if-gi-1/47)#speed 1000
mid-rack4-sw1(conf-if-gi-1/47)#duplex full
% Error: Duplex mode can only be configured on interfaces with speed 10/100, config ignored: Gi 1/47.
mid-rack4-sw1(conf-if-gi-1/47)#no shutdown
mid-rack4-sw1(conf-if-gi-1/47)#Jun 1 17:36:34 %STKUNIT1-M:CP %IFMGR-5-ASTATE_UP: Changed interface Admin state to up: Gi 1/47

mid-rack4-sw1(conf)#do show interface gigabitethernet 1/47
GigabitEthernet 1/47 is up, line protocol is down
Hardware is DellEth, address is 34:73:5a:17:a5:ce
Current address is 34:73:5a:17:a5:ce
Pluggable media present, SFP type is 1000BASE-SX
Wavelength is 850nm
SFP receive power reading is -4.9404dBm
SFP transmit power reading is -5.0141dBm
Interface index is 2103043
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :34735a17a5ce
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 1000 Mbit
Flowcontrol rx off tx off
Energy Efficient Ethernet: Not Applicable
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 6d22h20m
Queueing strategy: fifo
Input Statistics:
0 packets, 0 bytes
0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts, 0 Unicasts
--More--

Hi could you try this below

interface GigabitEthernet 1/47

combo-port-type fiber

no ip address

portmode hybrid

switchport

speed 1000

duplex full

no shutdown

Hmm, that makes me think, if possible, can you try with another SFP in ports 1/47 and 1/48? It could be related to SFP modules themselves. 

i have changed to another of the dell 1gb modules - still the same issue 

ColinPuk,

You may want to consider calling in to support, as it will likely require direct access to resolve the issue.