Cisco C3850-48P port not coming up / corresponding port is up?

I have a WS-C3850-48P with the C3850-NM-4-10G upllnk modules.   There's a couple of ports that won't come up when the connected port on another switch is up?

Why does the c3850 show down/down notconnect when the corresponding port is UP/UP connected?



the C3850:
sh int t3/1/1:
Te3/1/1   <<xx>>     notconnect   1            auto   1000 1000BaseBX-10U SFP
01-Switch#sh int t3/1/1      
TenGigabitEthernet3/1/1 is down, line protocol is down (notconnect)
  Hardware is Ten Gigabit Ethernet, address is 3462.8813.ac35 (bia 3462.8813.ac35)
   MTU 9198 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
  Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseBX-10U 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: Class-based queueing
  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, 4 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
01-Switch#sh run int t3/1/1
!
interface TenGigabitEthernet3/1/1
 switchport mode trunk
 service-policy output qos-ACCESS-OR-TRUNK-OUT
end

The Corresponding port on the switch that has the UP port:

interface GigabitEthernet1/0/52
 description <<xxK>>
 switchport mode trunk
 speed nonegotiate
 no cdp enable
end

02-2960S#sh int g1/0/52
GigabitEthernet1/0/52 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 5cfc.6652.d534 (bia 5cfc.6652.d534)
  Description: <<C02>>
  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
  Full-duplex, 1000Mb/s, link type is force-up, media type is 1000BaseBX10-D SFP
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output 00:00:01, output hang never
  Last clearing of "show interface" counters 22:28:24
  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 4000 bits/sec, 7 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
     617058 packets output, 43851405 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 PAUSE output
     0 output buffer failures, 0 output buffers swapped out
Edmonds_ITAsked:
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JustInCaseCommented:
Problem could be that C3850 int t3/1/1  is set to auto negotiate
Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseBX-10U SFP
While other side int g1/0/52 is manually set (speed nonegotiate)
Full-duplex, 1000Mb/s, link type is force-up, media type is 1000BaseBX10-D SFP
try on both sides (or at least on g1/0/52)
# no speed nonegotiate
or both sides with
# speed nonegotiate
Edmonds_ITAuthor Commented:
thanks for the suggestion - I added speed nonegotiate to both sides, still only up on the remote side,
and interestingly  also still shows auto-speed.

interface TenGigabitEthernet3/1/1
 switchport mode trunk
 speed nonegotiate
 service-policy output qos-ACCESS-OR-TRUNK-OUT
end

01-Switch#sh int t3/1/1
TenGigabitEthernet3/1/1 is down, line protocol is down (notconnect)
  Hardware is Ten Gigabit Ethernet, address is 3462.8813.ac35 (bia 3462.8813.ac35)
  MTU 9198 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
  Auto-duplex, Auto-speed, link type is force-up, media type is 1000BaseBX-10U 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: Class-based queueing
  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, 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
JustInCaseCommented:
Try this
If the port is not in the disabled state before a reboot or OIR, the port remains in operation after the reboot. However, if the port is in diasbled state before or after a reboot, toggle the negotiation state of the port before the remote end is connected. Complete these steps in order to toggle the negotiation of the port:

    Disable port negotiation on the port.

    Enable port negotiation on the port to bring the links UP.
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Edmonds_ITAuthor Commented:
I'm not sure what that means....
I added speed nonegotiate,
it didn't come up.
I just edited the port, issued no speed noneg
then issued speed noneg
tried a shut/ no shut.
but the port is still down.
Edmonds_ITAuthor Commented:
This is my current config:

interface TenGigabitEthernet3/1/1
 switchport mode trunk
 speed nonegotiate
 service-policy output qos-ACCESS-OR-TRUNK-OUT
end

01-Switch#sh  int t3/1/1    
TenGigabitEthernet3/1/1 is down, line protocol is down (notconnect)
  Hardware is Ten Gigabit Ethernet, address is 3462.8813.ac35 (bia 3462.8813.ac35)
  MTU 9198 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
  Auto-duplex, Auto-speed, link type is force-up, media type is 1000BaseBX-10U 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: Class-based queueing
  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, 8 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
01-Switch#
Joey YungSenior Network EngineerCommented:
Do you have clarify the SFP module is supported on C3850-NM-4-10G?
Do you have try to swap the physical fiber pair? (If the connection is across patching panel)
Edmonds_ITAuthor Commented:
The SFP module is supported by the switch.  Interestingly, I tried a different 1Gb SFP that has an identical SFP working and it wouldn't come up.  I believe I need to upgrade the OS and restart the switch as it appears to be a hardware problem.

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Edmonds_ITAuthor Commented:
will revisit after system upgrade
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