1721 router dropping ethernet interface
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09-03-2003 08:21 AM - edited 03-02-2019 10:04 AM
my 1721 router is displaying the following message at regular intervals: PQUICC_ETHER-1-LOSTCARR: Unit 0, lost carrier. Transceiver problem?
loading of the ios is also very slow. any clues of of what is causing the problem?
thanks.
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09-03-2003 09:06 AM
Please post the output of the show proc cpu and show int fa0 commands.
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09-04-2003 06:19 AM
Ethernet0 is up, line protocol is down
Hardware is PQUICC Ethernet, address is 0004.dd0d.0aaf (bia 0004.dd0d.0aaf)
Description: Ethernet Link to Zimbabwe ISP
Internet address is 217.15.121.106/29
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 137/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half-duplex, 10BaseT
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:06, 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 runts, 0 giants, 0 throttles
86 input errors, 0 CRC, 0 frame, 0 overrun, 86 ignored
0 input packets with dribble condition detected
86 packets output, 5456 bytes, 0 underruns
86 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
86 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
FastEthernet0 is up, line protocol is up
Hardware is PQUICC_FEC, address is 000b.be95.ff08 (bia 000b.be95.ff08)
Description: LAN Interface - Zimbabwertr
Internet address is 10.5.0.1/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, 10Mb/s, 100BaseTX/FX
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 never
Input queue: 4/75/0/0 (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, 1 packets/sec
1340 packets input, 118560 bytes
Received 348 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
714 packets output, 139812 bytes, 0 underruns
2 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
2 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Virtual-Access1 is up, line protocol is up
Hardware is Virtual Access interface
MTU 1492 bytes, BW 100000 Kbit, DLY 100000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Base PPPoE vaccess, loopback not set
DTR is pulsed for 5 seconds on reset
Last input never, output never, output hang never
Last clearing of "show interface" counters 00:13:15
Input queue: 0/4096/0/0 (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 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
even if the router is not connected to a hub or switch the error message of lost carrier still appears.
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09-03-2003 03:56 PM
Sounds physical.
Most often, "Lost carrier" indicates a physical problem. Check your cabling - replace the drop cable, try another switch/hub port, test with a cross-over cable directly to a NIC if you can.
Also, be sure to lock your interface speed and Full-Duplex/Half-Duplex settings. "Auto negotiation" too often is neither.
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09-04-2003 06:26 AM
the problem is occuring even when nothing is connected on the ethernet port.
