GLC-SX-MMD OM3 10gb Fiber laser optimized compatibility?

[StefanLoghin7729]

Hello,

We have at work 2 switches on the same floor different rooms connected with an OM3 Multi-mode 10Gb Laser optimized fiber strand. The link goes like this. 2960S > SFP GLC-SX-MMD > LC connector to SC patch-panel, > SC  patch-panel > LC Connector > SFP GLC-SX-MMD > 2960S.

The Cisco switch recognizes the SFP modules. But they are in down down not connected.

The laser does seem to appear all the way on the other side on the both sides.

And at the moment i am suspecting it could the Multi-mode cable between the servers rooms.

If more information is needed please let me know.

[balaji.bandi]

It required couple way to test and confirm  each stage.

check the modules are compatable with your model ?

1. Since you confirmed you can see the light, make sure the light go oppsite side when you connect to SFP.

2. What is the distance between these switches ?

3. can you post the configuration and capabilites of the port

also post show version of the both the switches 

[StefanLoghin7729]

1. They are on the opposite site.

2. The distance is about 210 ft.

SW1

 Capabilities of the port:

QLG_SW_VOICE_3#show interfaces gigabitEthernet 1/0/52 capabilities
GigabitEthernet1/0/52
Model: WS-C2960S-48LPS-L
Type: 1000BaseSX SFP
Speed: 1000
Duplex: full
Trunk encap. type: 802.1Q
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(none)
Fast Start: yes
QoS scheduling: rx-(not configurable on per port basis),
tx-(4q3t) (3t: Two configurable values and one fixed.)
CoS rewrite: yes
ToS rewrite: yes
UDLD: yes
Inline power: no
SPAN: source/destination
PortSecure: yes
Dot1x: yes

Configuration of the port:

QLG_SW_VOICE_3#show inter gigabitEthernet 1/0/52
GigabitEthernet1/0/52 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 2037.06ac.30b4 (bia 2037.06ac.30b4)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set

Transceiver of the port:

QLG_SW_VOICE_3#show interfaces gigabitEthernet 1/0/52 transceiver
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
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)
--------- ----------- ------- -------- --------
Gi1/0/52 35.4 3.31 -4.5 -40.0

Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseSX SFP
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 4d06h, output 4d06h, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (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
1607 packets input, 312173 bytes, 0 no buffer
Received 1213 broadcasts (438 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 438 multicast, 0 pause input
0 input packets with dribble condition detected
221 packets output, 45063 bytes, 0 underruns
0 output errors, 0 collisions, 5 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

SW2

Capabilities of the port:

QLG_SW_VOICE_1#show interfaces gigabitEthernet 1/0/52 capabilities
GigabitEthernet1/0/52
Model: WS-C2960S-48LPS-L
Type: 1000BaseSX SFP
Speed: 1000
Duplex: full
Trunk encap. type: 802.1Q
Trunk mode: on,off,desirable,nonegotiate
Channel: yes
Broadcast suppression: percentage(0-100)
Flowcontrol: rx-(off,on,desired),tx-(none)
Fast Start: yes
QoS scheduling: rx-(not configurable on per port basis),
tx-(4q3t) (3t: Two configurable values and one fixed.)
CoS rewrite: yes
ToS rewrite: yes
UDLD: yes
Inline power: no
SPAN: source/destination
PortSecure: yes
Dot1x: yes

Configuration of the port:

QLG_SW_VOICE_1#show interfaces gigabitEthernet 1/0/52
GigabitEthernet1/0/52 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 5835.d9e1.e8b4 (bia 5835.d9e1.e8b4)
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseSX SFP
input flow-control is off, output flow-control is unsupported
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: 0/75/0/0 (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 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

Transceiver of the port:

QLG_SW_VOICE_1#show interfaces gigabitEthernet 1/0/52 transceiver
ITU Channel not available (Wavelength not available),
Transceiver is internally calibrated.
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)
--------- ----------- ------- -------- --------
Gi1/0/52 26.1 3.30 -4.4 -40.0

[chrihussey]

Have you tried flipping the transmit and receive on one of the fiber jumpers?

[saifeldin]

Did you try to flip the fiber connector ? do this is one side and check the laser on the fiber patch cord should be on opposite side from the sfp laser
thanks