11-25-2010 10:07 PM - edited 03-06-2019 02:13 PM
Hi All,
I have 2960-G switch , last few days i am facing problem with it.Some ports are not responding .LED blinks but no packets are send or receive.
I tried a lot by restarting it and even I had restore default the switch but no luck.Pls find attached text file for config details............
11-25-2010 10:28 PM
Hi.
It`s a random ports or one group ports?
Did you had a problem with power sapply ?
11-26-2010 12:18 AM
Hi,
what is the status of those ports - notconnected,errdisabled? Please post a "show interface status" output and also an "show interface ge 0/x" from affected port.
11-26-2010 03:23 AM
Dear Rocco.scholz,
please find below mention output ....
show interfaces gigabitEthernet 0/12
GigabitEthernet0/12 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 0023.abe2.440c (bia 0023.abe2.440c)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, 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 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, 3 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
CH-ADMIN_CABIN-ASC-01#
CH-ADMIN_CABIN-ASC-01#show interfaces gigabitEthernet 0/13
GigabitEthernet0/13 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 0023.abe2.440d (bia 0023.abe2.440d)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed, 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 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, 3 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
CH-ADMIN_CABIN-ASC-01#show interfaces status
Port Name Status Vlan Duplex Speed Type
Gi0/1 connected 244 a-full a-10 10/100/1000BaseTX
Gi0/2 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/3 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/4 notconnect 244 auto auto 10/100/1000BaseTX seTX
Gi0/5 connected 244 a-full a-1000 10/100/1000BaseTX seTX
Gi0/6 connected 244 a-full a-10 10/100/1000BaseTX seTX
Gi0/7 connected 244 a-full a-1000 10/100/1000BaseTX seTX
Gi0/8 connected 244 a-full a-1000 10/100/1000BaseTX seTX
Gi0/9 notconnect 244 full auto 10/100/1000BaseTX seTX
Gi0/10 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/11 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/12 notconnect 244 auto auto 10/100/1000BaseTX seTX
Gi0/13 notconnect 244 auto auto 10/100/1000BaseTX seTX
Gi0/14 connected 244 a-full a-100 10/100/1000BaseTX seTX
Port Name Status Vlan Duplex Speed Type
Gi0/15 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/16 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/17 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/18 notconnect 244 auto auto 10/100/1000BaseTX seTX
Gi0/19 notconnect 244 auto auto 10/100/1000BaseTX seTX
Gi0/20 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/21 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/22 connected 244 a-full a-10 10/100/1000BaseTX seTX
Gi0/23 connected 244 a-full a-100 10/100/1000BaseTX seTX
Gi0/24 connected trunk a-full a-100 10/100/1000BaseTX seTX
11-28-2010 03:37 PM
Are these ports coming from a client with NIC Teaming turned on?
11-28-2010 11:59 PM
Hi, as leolaohoo wrote please tell us what kind of device is connected to these ports. From your show int status I can see that all counters are zero so I think these ports were never up. Have you tried to connect directly with a notebook to one of these ports?
11-29-2010 01:11 AM
hi rocco.scholz,
Our end users were connected through these ports but due the problem i had remove them and restart the switch.
Now the problem is that the ports were randomly not responding and within 7 days total 5 nos ports were useless.
Even I had connected my laptop on these ports but it shows not connected.
11-29-2010 01:49 AM
have you already tried a online diagnostic test?
11-29-2010 02:10 PM
Post the config for the ports.
Maybe BPDU Guard is enabled or port security or something could be sending the ports into error-disable.
11-30-2010 03:32 AM
Try show post command
If there is something wrong with ports there should be some errors...
11-30-2010 04:04 AM
Hi Leo,
Maybe BPDU Guard is enabled or port security or something could be sending the ports into error-disable
they would be in errdisabled state but here they are in notconnect state.
But giving us a show run interface output would maybe tell us a little bit more.
Regards.
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