%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9

[muhammadfadhila230]

my switch cisco 2960 WS-C2960X-24TS-L 15.2(7)E4 C2960X-UNIVERSALK9-M always get logs :

Sep 8 15:11:59.139: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to down
Sep 8 15:12:00.146: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to down
Sep 8 15:12:02.820: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to up
Sep 8 15:12:04826: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to up

my config is :
interface GigabitEthernet1/0/7
switchport trunk allowed vlan 400,401,404
trunk mode switchport
!
interface GigabitEthernet1/0/8
switchport trunk allowed vlan 400,401,404
trunk mode switchport
!
interface GigabitEthernet1/0/9
switchport trunk allowed vlan 400,401,404
trunk mode switchport

just on my access point port with trunk mode,

[balaji.bandi]

Check any Physical connection issue in the first instance, and check any STP Loops ?

how frequent this link going up and down ? try no negotiation command see of that fix the issue ?

[muhammadfadhila230]

Hello bandi,

I've checked all physical connections and they're all safe.
how to check stp loops?

Sep 8 10:08:30.520: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to down
Sep 8 10:08:31.527: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to down
Sep 8 10:08:34.200: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to up
Sep 8 10:08:36.207: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to up
ep 8 10:24:34.165: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/7, changed state to down
Sep 8 10:24:35.168: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/7, changed state to down
Sep 8 10:24:37.845: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/7, changed state to up
Sep 8 10:24:39.848: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/7, changed state to up
Sep 8 11:50:29.792: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to down
Sep 8 11:50:30,799: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to down
Sep 8 11:50:33.511: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to up
Sep 8 11:50:35.518: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to up
Sep 8 13:29:55.588: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/7, changed state to down
Sep 8 13:29:56.595: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/7, changed state to down
Sep 8 13:29:59.227: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/7, changed state to up
Sep 8 13:30:01.240: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/7, changed state to up
Sep 8 13:46:33,462: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to down
Sep 8 13:46:34.469: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to down
Sep 8 13:46:37.185: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to up
Sep 8 13:46:39.191: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to up
Sep 8 13:50:42.726: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to down
Sep 8 13:50:43,733: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to down
Sep 8 13:50:46.410: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/8, changed state to up
Sep 8 13:50:48.413: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/8, changed state to up
Sep 8 15:11:59.139: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to down
Sep 8 15:12:00.146: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to down
Sep 8 15:12:02.820: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/9, changed state to up
Sep 8 15:12:04826: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/9, changed state to up

which port no negotiation command I use?

7,8,9 or distribution link 1/0/26?

[balaji.bandi]

i was in impression only 1 port looks all the ports are going up and down, what is another side connected? each one connected to different switches? or all of them going to 1 switch?

show spanning brief

show spanning block

which port no negotiation command I use?
7,8,9 or distribution link 1/0/26?

Lets understand connection before we do any modification ?

[muhammadfadhila230]

SFP on port 1/0/26 from Switch 3850 in trunk mode, UTP for printers on port 1/0/4 in access mode, and UTP for CCTV on port 1/0/5 in access mode. this is all in 1 switch 2960x

L2_MDF#sh spanning-tree summary 

Switch is in pvst mode

Root bridge for: none

EtherChannel misconfig guard            is enabled

Extended system ID                      is enabled

Portfast Default                        is disabled

Portfast Edge BPDU Guard Default        is disabled

Portfast Edge BPDU Filter Default       is disabled

Loopguard Default                       is disabled

PVST Simulation Default                 is enabled but inactive in pvst mode

Bridge Assurance                        is enabled but inactive in pvst mode

UplinkFast                              is disabled

BackboneFast                            is disabled

Configured Pathcost method used is short

Name                   Blocking Listening Learning Forwarding STP Active

---------------------- -------- --------- -------- ---------- ----------

VLAN0400                     0         0        0          5          5

VLAN0401                     0         0        0          4          4

VLAN0404                     0         0        0          4          4

VLAN0414                     0         0        0          3          3

---------------------- -------- --------- -------- ---------- ----------

4 vlans                      0         0        0         16         16

L2_MDF#sh spanni

L2_MDF#sh spanning-tree block

Name                 Blocked Interfaces List

-------------------- ------------------------------------

Number of blocked ports (segments) in the system : 0

L2_MDF#sh spanning bridg 

                                                   Hello  Max  Fwd

Vlan                         Bridge ID              Time  Age  Dly  Protocol

---------------- --------------------------------- -----  ---  ---  --------

VLAN0400         33168 (32768, 400) 548a.ba45.3200    2    20   15  ieee        

VLAN0401         33169 (32768, 401) 548a.ba45.3200    2    20   15  ieee        

VLAN0404         33172 (32768, 404) 548a.ba45.3200    2    20   15  ieee        

VLAN0414         33182 (32768, 414) 548a.ba45.3200    2    20   15  ieee        

L2_MDF#

L2_MDF#

L2_MDF#sh spanning root

                                        Root    Hello Max Fwd

Vlan                   Root ID          Cost    Time  Age Dly  Root Port

---------------- -------------------- --------- ----- --- ---  ------------

VLAN0400         33168 189c.5d08.9a00         8    2   20  15  Gi1/0/26        

VLAN0401         33169 189c.5d08.9a00         8    2   20  15  Gi1/0/26        

VLAN0404         33172 189c.5d08.9a00         8    2   20  15  Gi1/0/26        

VLAN0414         33182 5061.bf06.5900         4    2   20  15  Gi1/0/26        

L2_MDF#

[Leo Laohoo]

In a text file, paste the complete output to the following commands: 

sh interface Gi1/0/7 controll
sh interface Gi1/0/8 controll
sh interface Gi1/0/9 controll

[muhammadfadhila230]

L2_MDF#sh interface Gi1/0/7 controll
GigabitEthernet1/0/7 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 548a.ba45.3207 (bia 548a.ba45.3207)
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 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 never, output 00:00:00, 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 13000 bits/sec, 7 packets/sec
5 minute output rate 279000 bits/sec, 22 packets/sec
15426587 packets input, 4391770308 bytes, 0 no buffer
Received 387444 broadcasts (250726 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 250726 multicast, 0 pause input
0 input packets with dribble condition detected
40014792 packets output, 37784021170 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

Transmit GigabitEthernet1/0/7 Receive
3424282938 Bytes 96803537 Bytes
36163630 Unicast frames 15039147 Unicast frames
2971587 Multicast frames 250726 Multicast frames
879577 Broadcast frames 136718 Broadcast frames
0 Too old frames 1589736 Unicast bytes
0 Deferred frames 30378143 Multicast bytes
0 MTU exceeded frames 9270134 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 1534947 Minimum size frames
0 8 collision frames 8996420 65 to 127 byte frames
0 9 collision frames 1176985 128 to 255 byte frames
0 10 collision frames 710001 256 to 511 byte frames
0 11 collision frames 1384527 512 to 1023 byte frames
0 12 collision frames 1359527 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 264184 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
24049 64 byte frames 0 Valid frames, too small
5702786 127 byte frames
3640476 255 byte frames 0 Too old frames
4159612 511 byte frames 0 Valid oversize frames
3733689 1023 byte frames 0 System FCS error frames
17438485 1518 byte frames 0 RxPortFifoFull drop frame
5315697 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames

L2_MDF#
L2_MDF# sh int gi 1/0/8 contr
L2_MDF# sh int gi 1/0/8 controller
GigabitEthernet1/0/8 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 548a.ba45.3208 (bia 548a.ba45.3208)
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 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 never, output 00:00:00, 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 3000 bits/sec, 3 packets/sec
17459029 packets input, 6849908943 bytes, 0 no buffer
Received 681821 broadcasts (476496 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 476496 multicast, 0 pause input
0 input packets with dribble condition detected
40100564 packets output, 32285021533 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

Transmit GigabitEthernet1/0/8 Receive
2220250685 Bytes 2554941647 Bytes
36541677 Unicast frames 16777208 Unicast frames
2750466 Multicast frames 476496 Multicast frames
808422 Broadcast frames 205325 Broadcast frames
0 Too old frames 2417603188 Unicast bytes
0 Deferred frames 61355253 Multicast bytes
0 MTU exceeded frames 14995454 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 2210591 Minimum size frames
0 8 collision frames 7608030 65 to 127 byte frames
0 9 collision frames 1764029 128 to 255 byte frames
0 10 collision frames 1012702 256 to 511 byte frames
0 11 collision frames 1791825 512 to 1023 byte frames
0 12 collision frames 2117722 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 954130 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
24059 64 byte frames 0 Valid frames, too small
7085292 127 byte frames
4251400 255 byte frames 0 Too old frames
4838862 511 byte frames 0 Valid oversize frames
5664689 1023 byte frames 0 System FCS error frames
12898361 1518 byte frames 0 RxPortFifoFull drop frame
5337902 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames

L2_MDF#sh int gi 1/0/9 control
GigabitEthernet1/0/9 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 548a.ba45.3209 (bia 548a.ba45.3209)
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 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 never, output 00:00:00, 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 1000 bits/sec, 1 packets/sec
5 minute output rate 3000 bits/sec, 2 packets/sec
10707494 packets input, 4890924961 bytes, 0 no buffer
Received 496084 broadcasts (357589 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 357589 multicast, 0 pause input
0 input packets with dribble condition detected
26715629 packets output, 17616397001 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

Transmit GigabitEthernet1/0/9 Receive
436527817 Bytes 595957665 Bytes
22955935 Unicast frames 10211410 Unicast frames
2879047 Multicast frames 357589 Multicast frames
880647 Broadcast frames 138495 Broadcast frames
0 Too old frames 506798916 Unicast bytes
0 Deferred frames 42832359 Multicast bytes
0 MTU exceeded frames 9647206 Broadcast bytes
0 1 collision frames 0 Alignment errors
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 1535991 Minimum size frames
0 8 collision frames 3866550 65 to 127 byte frames
0 9 collision frames 1044000 128 to 255 byte frames
0 10 collision frames 685505 256 to 511 byte frames
0 11 collision frames 1242790 512 to 1023 byte frames
0 12 collision frames 1315313 1024 to 1518 byte frames
0 13 collision frames 0 Overrun frames
0 14 collision frames 0 Pause frames
0 15 collision frames
0 Excessive collisions 0 Symbol error frames
0 Late collisions 0 Invalid frames, too large
0 VLAN discard frames 1017345 Valid frames, too large
0 Excess defer frames 0 Invalid frames, too small
24594 64 byte frames 0 Valid frames, too small
6133877 127 byte frames
3187917 255 byte frames 0 Too old frames
4277739 511 byte frames 0 Valid oversize frames
4044546 1023 byte frames 0 System FCS error frames
7017000 1518 byte frames 0 RxPortFifoFull drop frame
2029956 Too large frames
0 Good (1 coll) frames
0 Good (>1 coll) frames

[Georg Pauwen]

Hello, 

as far as I recall, the 2960 have an optoon to test the cable on a port, the command is something like 'test cable tdr imterface'.

The ports also let you set the media type (media or media-type), you might want to toggle the values...

[muhammadfadhila230]

L2_MDF#show cable-diagnostics tdr interface gigabitEthernet 1/0/9
TDR test last run on: September 08 20:56:35

Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/9 1000M Pair A 54 +/- 10 meters Pair A Normal
Pair B 54 +/- 10 meters Pair B Normal
Pair C 54 +/- 10 meters Pair C Normal
Pair D 54 +/- 10 meters Pair D Normal

Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/7 1000M Pair A 43 +/- 10 meters Pair A Normal
Pair B 43 +/- 10 meters Pair B Normal
Pair C 43 +/- 10 meters Pair C Normal
Pair D 43 +/- 10 meters Pair D Normal
L2_MDF#
L2_MDF#show cable-diagnostics tdr interface gigabitEthernet 1/0/8
TDR test last run on: September 08 20:57:47

Interface Speed Local pair Pair length Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/8 1000M Pair A 61 +/- 10 meters Pair A Normal
Pair B 61 +/- 10 meters Pair B Normal
Pair C 61 +/- 10 meters Pair C Normal
Pair D 61 +/- 10 meters Pair D Normal