RB260GS - problem with SFP connection

SwOS
1

Situation:
RB260GS with fw 1.9 is connected to Cisco C3508 L2 switch via the metallic GB line. Attempt to replace line with SFP S-85DLC05D - to - Cisco GBIC WS-G5484 connection was unsuccessfull. Line was seen as active from RB point of view (green SFP indicator lit) but no data went through the line.
Similar situation is with S-85DLC05D connection to TP-Link MC200CM media converter. Both devices indicates that line is ok/up, but no data goes through.

Screenshot from SFP tab is attached and output from Cisco CLI contains row “Auto-duplex (Full), 1000Mb/s, media type is SX” in description of particular interface.

RB260GS configuration is factory default except the SNMP.

It seems line on physical layer is active but data for some reason can’t flow. I suppose problem is on RB260GS behalf. MC200CM directly against WS-G5484 GBIC worked well for years ended in RB250.

Any idea why?
sfp.png

2

Can you post the Cisco interface configuration?

3

There isn’t special config related to this interface:

GigabitEthernet0/2 is up, line protocol is up 
  Hardware is Gigabit Ethernet, address is 0013.1abd.b542 (bia 0013.1abd.b542)
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not set
  Auto-duplex (Full), 1000Mb/s, media type is SX
  output flow-control is on, input flow-control is off
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:01, output hang never
  Last clearing of "show interface" counters never
  Queueing strategy: fifo
  Output queue 0/40, 0 drops; input queue 0/75, 0 drops
  5 minute input rate 22000 bits/sec, 30 packets/sec
  5 minute output rate 355000 bits/sec, 60 packets/sec
     3350734814 packets input, 38399694 bytes, 0 no buffer
     Received 78391091 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 68435292 multicast, 0 pause input
     3660823533 packets output, 1424961218 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 23142 pause output
     0 output buffer failures, 0 output buffers swapped out
4

Can you also post the configuration? These are the interface statistics.
show run int gi0/2

5 
WS-C3508G-XL#show run int gi0/2
Building configuration...

Current configuration:
!
interface GigabitEthernet0/2
end
6

So, nothing special … as I wrote before.

7

Solved: problem was related to defective SFP module. Confirmed by the service personal of dealer company.

8

Hi I have exactly the same problem with S-85DLC05D and TP-Link MC200CM, was this also problem with S-85DLC05D SFP module?

9

It was SFP..