01-14-2019 09:12 AM
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
Solved! Go to Solution.
01-14-2019 02:12 PM
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
01-14-2019 10:11 AM
Have you checked why the 10G port is put into "err-disabled" mode?
01-14-2019 10:46 AM
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
01-14-2019 10:49 AM
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
01-14-2019 11:28 AM
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?
01-14-2019 12:49 PM
01-14-2019 02:12 PM
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
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide