cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
4839
Views
0
Helpful
6
Replies

fiber port connection SPF+ to SPF

mgutierr
Level 1
Level 1

Hello guys,

 

have two switches both have fiber connection ports on them :

a 9300 with a C9300-NM-8X - port sfp+ 10GB  module installed

and a C3560 with 4 sfp 1GB port

So i did check compatibility between 10GB (sfp+) port on my 9300 switch against C3560 1GB (sfp) 

and it does.

I'm trying to establish connection between this two using

 

GLC-LX-SM 1000Base tranceivers and

1M MULTIMODE OFNR FIBER OPTIC PATCH CABLE (LCSC-M3022RAQ01)

but i'm not quite sure if this is the right type of fiber patch / tranceiver pair to use on this scenario.

 

Anyways i did connect both ends on default VLAN 1 and swithport mode access 

just in order to test connection, but i don't even have a blinking led of course that's telling me that 

something is wrong, could you guys point me in the right direction regarding the type of patch / tranceivers to use

and the port config on both ends.

 

Here's what i got on both switches:

 

Switch C3560 port 0/25 is set to :

 

interface GigabitEthernet0/25
switchport mode access
spanning-tree portfast

 

show int gi 0/25:
GigabitEthernet0/25 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 001f.9dc6.eb19 (bia 001f.9dc6.eb19)
MTU 1500 bytes, BW 10000 Kbit, 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 1000BaseLX 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, 1 interface resets
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

 

show vlan:

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active  Te1/1/1
Te1/1/2, Te1/1/3, Te1/1/4
Te1/1/5, Te1/1/6, Te1/1/7
Te1/1/8

 

on the other end i have pretty much the same

PORT te 1/1/1:

interface TenGigabitEthernet1/1/1
switchport mode access

 

shon int te 1/1/1:

TenGigabitEthernet1/1/1 is down, line protocol is down (err-disabled)
Hardware is Ten Gigabit Ethernet, address is b090.7e16.8b35 (bia b090.7e16.8b35)
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseLX 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: 0/2000/0/0 (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 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, 2 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

 

show vlan:

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi 0/25

 

1 Accepted Solution

Accepted Solutions

It's fixed !

i did delete the err-disabled by using a cisco spf connector 

after that just shutting down and up both ends and its showing connection 

C3560 end:

do show int gi 0/25 status

Port Name Status Vlan Duplex Speed Type
Gi0/25 connected 1 full 1000 1000BaseLX SFP

 

9300 end:

do show int te 1/1/3 status

Port Name Status Vlan Duplex Speed Type
Te1/1/3 connected 1 full 1000 1000BaseLX SFP

 

so now i know that there are some spf that are not compatible with CISCO and trigger an err-disabled error

 

View solution in original post

6 Replies 6

Yinchuan
Level 1
Level 1

Have you checked why the 10G port is put into "err-disabled" mode?

Yes, it was a negotiation issue, already fixed but now it says not connected

 

TenGigabitEthernet1/1/1 is down, line protocol is down (notconnect)
Hardware is Ten Gigabit Ethernet, address is b090....

 

do show int te 1/1/2 status:

Port        Name          Status          Vlan    Duplex   Speed    Type
Te1/1/1                     notconnect     1       auto       auto       unknown

On the other end 

i have

show int gi 0/25 status:

Port      Name Status         Vlan Duplex Speed Type
Gi0/25            notconnect    1    auto     auto    1000BaseLX SF

 

it seems like my 9300 series switch is not detecting the media type

mgutierr
Level 1
Level 1

Let me update a little bit 

i did change tranceivers and fyber patch cords with no luck

while at the 3560 end everithing looks normal:

show int gi 0/25 status

Port Name Status Vlan Duplex Speed Type
Gi0/25 notconnect 1 auto auto 1000BaseLX SFP

on the other end i got 

show int te 1/1/1 status

Port Name Status Vlan Duplex Speed Type
Te1/1/1 err-disabled 1 full 1000 1000BaseLX SFP

got err-disabled 

when i see the details on this the switch says:

Port        Name Status           Reason              Err-disabled     Vlans
Te1/1/3             err-disabled gbic-invalid

 

so i assume that my tranceiver's pair is not compatible on the 9300 Switch side 

any advice?

 

I would suggest you use CAT 6a cable to connect the two. Use Cisco 1000BASE-T Copper SFP on C3560.
You may save a 10G port for something works at that speed.

It's fixed !

i did delete the err-disabled by using a cisco spf connector 

after that just shutting down and up both ends and its showing connection 

C3560 end:

do show int gi 0/25 status

Port Name Status Vlan Duplex Speed Type
Gi0/25 connected 1 full 1000 1000BaseLX SFP

 

9300 end:

do show int te 1/1/3 status

Port Name Status Vlan Duplex Speed Type
Te1/1/3 connected 1 full 1000 1000BaseLX SFP

 

so now i know that there are some spf that are not compatible with CISCO and trigger an err-disabled error