>покажите настройки интерфейса GBIC cs-c3550xl#sh run int g0/1
Building configuration...
Current configuration:
!
interface GigabitEthernet0/1
no flowcontrol <----- изначально было flowcontrol (не так ни так не работает)
no cdp enable
end
cs-c3550xl#sh int g0/1
GigabitEthernet0/1 is down, line protocol is down <------- при воткнутом шнурке
Hardware is Gigabit Ethernet, address is 0007.5046.1071 (bia 0007.5046.1071)
MTU 1500 bytes, BW 0 Kbit, DLY 0 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex , 1000Mb/s, media type is T
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters 00:14:22
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 2138 bytes, 0 no buffer
Received 0 broadcasts, 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 packets output, 0 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
GigabitEthernet0/12 is up, line protocol is up <---- это его сосед на котором физика поднимается
Hardware is Gigabit Ethernet, address is 000d.283a.508c (bia 000d.283a.508c)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex mode, link type is force-up, media type is T
output flow-control is unsupported, input flow-control is unsupported, 1000Mb/
s
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
1000BaseT module (WS-G5483) in GBIC slot.
Last input 4d00h, 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 0 bits/sec, 0 packets/sec
26 packets input, 2789 bytes, 0 no buffer
Received 24 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 24 multicast, 0 pause input
