3850 port status light goes orange unexpectedly

[CrackedJack1]

I've got a new 3850 and when I add/remove vlans on a trunk port, the light on the port turns orange but the trunk continues to work. If I undo the change, sometimes the light will do back green, sometimes it won't. Despite the light being orange, it doesn't seem to affect connectivity.

Connected to the console of the switch, i don't see any messages about interfaces going up/down so I think this may be a cosmetic bug. If I pull the cable and put it back on the light is green again.

I'm running 3.2.2

Has anyone else seen this behaviour? I called TAC and the guy on the phone didn't find any notes about this and it appears I was using the correct commands.

I'm thinking it's a bug (minor but still a little worrying if you see an orange light but there's no connectivity issue). Does anyone else see this behaviour and if so, how do I submit a bug to cisco?

[Leo Laohoo]

It could be line errors.

Post the output to the following commands:

1.  sh interface ; and

2.  sh controll e

[CrackedJack1]

Sorry for the late reply, was a little crazy last week.

Below is the output you request, before and after I made a change. (I also tried on a port channel and same problem)

GigabitEthernet1/0/48 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 5017.ff71.8fb0 (bia 5017.ff71.8fb0)
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 4/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, 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 18445000 bits/sec, 2407 packets/sec
  5 minute output rate 80000 bits/sec, 68 packets/sec
     935634718 packets input, 2708581719 bytes, 0 no buffer
     Received 778423638 broadcasts (682885554 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 682885554 multicast, 0 pause input
     0 input packets with dribble condition detected
     31497487 packets output, 3450556296 bytes, 0 underruns
     0 output errors, 0 collisions, 1 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

 
  sh controll e g1/0/48
Transmit                  GigabitEthernet1/0/48                 Receive
  16335587996 Total bytes                951916549240 Total bytes
     11009588 Unicast frames                157217739 Unicast frames
   1252462037 Unicast bytes              126130711095 Unicast bytes
     20472763 Multicast frames              682898748 Multicast frames
  15077112191 Multicast bytes            814189729977 Multicast bytes
        16198 Broadcast frames               95542503 Broadcast frames
      6013768 Broadcast bytes             11596108168 Broadcast bytes
            0 System FCS error frames               0 IpgViolation frames
            0 MacUnderrun frames                    0 MacOverrun frames
            0 Pause frames                          0 Pause frames
            0 Cos 0 Pause frames                    0 Cos 0 Pause frames
            0 Cos 1 Pause frames                    0 Cos 1 Pause frames
            0 Cos 2 Pause frames                    0 Cos 2 Pause frames
            0 Cos 3 Pause frames                    0 Cos 3 Pause frames
            0 Cos 4 Pause frames                    0 Cos 4 Pause frames
            0 Cos 5 Pause frames                    0 Cos 5 Pause frames
            0 Cos 6 Pause frames                    0 Cos 6 Pause frames
            0 Cos 7 Pause frames                    0 Cos 7 Pause frames
            0 Oam frames                            0 OamProcessed frames
            0 Oam frames                            0 OamDropped frames
        43320 Minimum size frames              229877 Minimum size frames
     17929029 65 to 127 byte frames         180540433 65 to 127 byte frames
      2598728 128 to 255 byte frames         47843547 128 to 255 byte frames
       942396 256 to 511 byte frames         46581425 256 to 511 byte frames
       989557 512 to 1023 byte frames        66795029 512 to 1023 byte frames
      8928208 1024 to 1518 byte frames      546167426 1024 to 1518 byte frames
        67311 1519 to 2047 byte frames       47501253 1519 to 2047 byte frames
            0 2048 to 4095 byte frames              0 2048 to 4095 byte frames
            0 4096 to 8191 byte frames              0 4096 to 8191 byte frames
            0 8192 to 16383 byte frames             0 8192 to 16383 byte frames
            0 16384 to 32767 byte frame             0 16384 to 32767 byte frame
            0 > 32768 byte frames                   0 > 32768 byte frames
            0 Late collision frames                 0 SymbolErr frames
            0 Excess Defer frames                   0 Collision fragments
            0 Good (1 coll) frames                  0 ValidUnderSize frames
            0 Good (>1 coll) frames                 0 InvalidOverSize frames
            0 Deferred frames                       0 ValidOverSize frames
            0 Gold frames dropped                   0 FcsErr frames
            0 Gold frames truncated
            0 Gold frames successful
            0 1 collision frames
            0 2 collision frames
            0 3 collision frames
            0 4 collision frames
            0 5 collision frames
            0 6 collision frames
            0 7 collision frames
            0 8 collision frames
            0 9 collision frames
            0 10 collision frames
            0 11 collision frames
            0 12 collision frames
            0 13 collision frames
            0 14 collision frames
            0 15 collision frames
            0 Excess collision frames

LAST UPDATE 4010 msecs AGO

Then I added and removed a vlan and the port is orange but I can still ping the switch just fine on all vlans for that port.

GigabitEthernet1/0/48 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is 5017.ff71.8fb0 (bia 5017.ff71.8fb0)
  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 4/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, 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 19394000 bits/sec, 2498 packets/sec
  5 minute output rate 72000 bits/sec, 65 packets/sec
     935950948 packets input, 3018553471 bytes, 0 no buffer
     Received 778691577 broadcasts (683117518 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 683117518 multicast, 0 pause input
     0 input packets with dribble condition detected
     31505763 packets output, 3451621655 bytes, 0 underruns
     0 output errors, 0 collisions, 1 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

sh controll e g1/0/48
Transmit                  GigabitEthernet1/0/48                 Receive
  16336731836 Total bytes                952276606322 Total bytes
     11013842 Unicast frames                157269414 Unicast frames
   1252806894 Unicast bytes              126163274403 Unicast bytes
     20477293 Multicast frames              683172351 Multicast frames
  15077910970 Multicast bytes            814512351865 Multicast bytes
        16201 Broadcast frames               95580545 Broadcast frames
      6013972 Broadcast bytes             11600980054 Broadcast bytes
            0 System FCS error frames               0 IpgViolation frames
            0 MacUnderrun frames                    0 MacOverrun frames
            0 Pause frames                          0 Pause frames
            0 Cos 0 Pause frames                    0 Cos 0 Pause frames
            0 Cos 1 Pause frames                    0 Cos 1 Pause frames
            0 Cos 2 Pause frames                    0 Cos 2 Pause frames
            0 Cos 3 Pause frames                    0 Cos 3 Pause frames
            0 Cos 4 Pause frames                    0 Cos 4 Pause frames
            0 Cos 5 Pause frames                    0 Cos 5 Pause frames
            0 Cos 6 Pause frames                    0 Cos 6 Pause frames
            0 Cos 7 Pause frames                    0 Cos 7 Pause frames
            0 Oam frames                            0 OamProcessed frames
            0 Oam frames                            0 OamDropped frames
        43338 Minimum size frames              229881 Minimum size frames
     17936719 65 to 127 byte frames         180613621 65 to 127 byte frames
      2599405 128 to 255 byte frames         47862208 128 to 255 byte frames
       942579 256 to 511 byte frames         46601368 256 to 511 byte frames
       989563 512 to 1023 byte frames        66826350 512 to 1023 byte frames
      8928417 1024 to 1518 byte frames      546353429 1024 to 1518 byte frames
        67315 1519 to 2047 byte frames       47535453 1519 to 2047 byte frames
            0 2048 to 4095 byte frames              0 2048 to 4095 byte frames
            0 4096 to 8191 byte frames              0 4096 to 8191 byte frames
            0 8192 to 16383 byte frames             0 8192 to 16383 byte frames
            0 16384 to 32767 byte frame             0 16384 to 32767 byte frame
            0 > 32768 byte frames                   0 > 32768 byte frames
            0 Late collision frames                 0 SymbolErr frames
            0 Excess Defer frames                   0 Collision fragments
            0 Good (1 coll) frames                  0 ValidUnderSize frames
            0 Good (>1 coll) frames                 0 InvalidOverSize frames
            0 Deferred frames                       0 ValidOverSize frames
            0 Gold frames dropped                   0 FcsErr frames
            0 Gold frames truncated
            0 Gold frames successful
            0 1 collision frames
            0 2 collision frames
            0 3 collision frames
            0 4 collision frames
            0 5 collision frames
            0 6 collision frames
            0 7 collision frames
            0 8 collision frames
            0 9 collision frames
            0 10 collision frames
            0 11 collision frames
            0 12 collision frames
            0 13 collision frames
            0 14 collision frames
            0 15 collision frames
            0 Excess collision frames

LAST UPDATE 270 msecs AGO

[Leo Laohoo]

No line errors.

[Patrick McHenry]

I've noticed the same behavior. I created a trunk between a 3750G to a 3850 using copper ports and the trunk is working fine, but the port is amber on the 3850 and green on the 3750G.

Kind of strange probably a bug.

My 3850 does have some unknown protocol drops, but this is cosmetic per Cisco TAC and should be fixed with the new code.

[abclabsmo]

Interestingly I just setup a WLC2504 connected via trunk to a 3850.  Port was green until I restricted the VLANs then it went yellow.  Working fine with no errors but.......  Note... The vlans do exist and have been around for years.

[Sahil Shah]

Ignore text.