> Покажите состояние интерфейсов коммутатора gi0/1 и gi0/3
> Бывает, оборудование провайдера шлет BPDU-пакеты и порты тупо блокируются
> Попробуйте на этих портах коммутатора дать команду:
> spanning-tree bpdufilter enable Вот состояние интерфейсов:
GigabitEthernet0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0011.92c6.2981 (bia 0011.92c6.2981)
Description: ISP1
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, 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 00:00:01, output hang never
Last clearing of "show interface" counters 16:38:12
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, 2 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
266129 packets input, 23362612 bytes, 0 no buffer
Received 179749 broadcasts (91913 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 91916 multicast, 0 pause input
0 input packets with dribble condition detected
36857 packets output, 2692180 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
GigabitEthernet0/3 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0011.92c6.2983 (bia 0011.92c6.2983)
Description: ISP2
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, 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 00:00:00, output hang never
Last clearing of "show interface" counters 16:39:26
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, 2 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
133948 packets input, 9242449 bytes, 0 no buffer
Received 129685 broadcasts (62068 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 62068 multicast, 0 pause input
0 input packets with dribble condition detected
36903 packets output, 2695458 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
Добавил "spanning-tree bpdufilter enable" в настройку интерфейсов gi0/1 и gi0/3 - эффект тот же.
Как предложил <b>h</b> при ping 5.5.5.189 смотрю с другой консоли show arp и вижу Incomplete на месте MAC-адреса.