FastEthernet is down, line protocol is down (disabled)

[Student6001186]

Hello. I'm student. I found trouble on switch2(f0/2 and f0/3) after checked with

#show interface f0/2 

is

FastEthernet0/2 is down, line protocol is down (disabled)

Hardware is Lance, address is 000a.f379.7702 (bia 000a.f379.7702)

BW 100000 Kbit, DLY 1000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Half-duplex, 100Mb/s

input flow-control is off, output flow-control is off

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:08, output 00:00:05, 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

956 packets input, 193351 bytes, 0 no buffer

Received 956 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

2357 packets output, 263570 bytes, 0 underruns

I try to no shutdown interface f0/2 and f0/3 but it's still shutdown

Please help me should to do. (T^T)

[Reza Sharifi · Accepted solution]

Hi,

For ports fa0/2 and 3, make sure the speed matches and the cables are good. 

also

Half-duplex, 100Mb/s

This switch port is configured as half-duplex. What is the speed an duplex on the PC.

Appears you have some sort of speed mismatch, if the cable is good.

HTH

[Student6001186]

Thank you so much. it's work! (>^<)

[Reza Sharifi]

Glad to help!

[SINOXOLODAMA0608]

Hi

i also have the same topology and the same problem

Wht commands did you use to solve it?