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Beginner

Cisco 4503 "1000BaseLH" SFP light is not coming ---- Urgent

Dear Team,

 

I have Cisco 4503 and I have inserted 1000BaseLH and light is not coming up but for 1000BaseSX its fine.

 

Please suggest.

 

CORE#show int GigabitEthernet1/18
GigabitEthernet1/18 is down, line protocol is down (notconnect)
  Hardware is Gigabit Ethernet Port, address is 001e.4aa6.b891 (bia 001e.4aa6.b891)
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, Auto-speed, link type is auto, media type is 1000BaseLH
  input flow-control is off, output flow-control is off
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 multicast)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 input packets with dribble condition detected
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out

 

CORE#show inventory

NAME: "GigabitEthernet1/18", DESCR: "1000BaseLH"
PID: TRF5735AALB202    , VID: A1 , SN: OPA11241478

 

 

 

 

Thank You,

Abhisar.

1 ACCEPTED SOLUTION

Accepted Solutions
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Hi,

Try connecting the cable.  Please don't look at the laser light. It will damage your eyes.

HTH

View solution in original post

5 REPLIES 5
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Hall of Fame Expert

Are you using the right fiber patch cored with 1000BaseLH optic?

For 1000BaseLH optic you need to use single-mode fiber?

HTH

Highlighted

Dear Reza,

 

I have not connected the cable yet, I am checking on the switch itself, no light on SFP.

 

Please suggest.

 

Thank You,

Abhisar.

Highlighted

Hi,

Try connecting the cable.  Please don't look at the laser light. It will damage your eyes.

HTH

View solution in original post

Highlighted

Dear Reza, we connected cable and it came up. The conclusion is single m9de sfps does not show light where multimode sfp shows light when sfp is connected on switch port. Thank you for your suggesion. Thank You, Abhisar.
Highlighted

Glad to help Abhisar

Thanks for the rating!

Reza

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