Why is my interface state changing?

jaesposito · ‎06-20-2011

All,

I suspect that my DSL carrier is responsible for the dropped connection on my 837. Is there anything I can use as evidence to prove this beyond the following log entries?

677464: Jun 20 09:17:54: %LINK-3-UPDOWN: Interface ATM0, changed state to down

677465: Jun 20 09:17:55: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to down

677466: Jun 20 09:18:42: %DIALER-6-UNBIND: Interface Vi1 unbound from profile Di1

677467: Jun 20 09:18:42: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down

677468: Jun 20 09:18:43: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to down

677469: Jun 20 09:18:47: %LINK-3-UPDOWN: Interface ATM0, changed state to up

677470: Jun 20 09:18:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to up

677471: Jun 20 09:19:05: %DIALER-6-BIND: Interface Vi1 bound to profile Di1

677472: Jun 20 09:19:05: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up

677473: Jun 20 09:19:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up

Below is the output from my 'show interfaces'. Let me know if you need any additional information

Router-10031#sh interface

FastEthernet1 is up, line protocol is up

Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)

MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 100Mb/s, 100BaseTX/FX

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: 0/0 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

4008 packets input, 0 bytes

Received 0 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

19525 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 unknown protocol drops

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

FastEthernet2 is down, line protocol is down

Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)

MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, Auto Speed, 100BaseTX/FX

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: 0/0 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

8488 packets input, 0 bytes

Received 0 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

24941 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 2 interface resets

0 unknown protocol drops

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

FastEthernet3 is down, line protocol is down

Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)

MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, Auto Speed, 100BaseTX/FX

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: 0/0 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

208 packets input, 0 bytes

Received 0 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

1017 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 unknown protocol drops

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

FastEthernet4 is administratively down, line protocol is down

Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)

MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, Auto Speed, 100BaseTX/FX

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: 0/0 (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

Received 0 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

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 unknown protocol drops

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Ethernet0 is up, line protocol is up

Hardware is PQUICC Ethernet, address is 0012.8032.d40e (bia 0012.8032.d40e)

Internet address is 10.10.10.1/24

MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 10Mb/s

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: 0/75/0/0 (size/max/drops/flushes); Total output drops: 12

Queueing strategy: fifo

Output queue: 0/100 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 1000 bits/sec, 0 packets/sec

4229852 packets input, 760442337 bytes, 0 no buffer

Received 22349 broadcasts, 0 runts, 0 giants, 0 throttles

5 input errors, 0 CRC, 0 frame, 0 overrun, 5 ignored

0 input packets with dribble condition detected

4882284 packets output, 1521940913 bytes, 0 underruns

0 output errors, 0 collisions, 2 interface resets

2 unknown protocol drops

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

ATM0 is up, line protocol is up

Hardware is PQUICC_SAR (with Alcatel ADSL Module)

MTU 1500 bytes, sub MTU 1500, BW 1524 Kbit/sec, DLY 80 usec,

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

Encapsulation ATM, loopback not set

Encapsulation(s): AAL5 AAL2, PVC mode

10 maximum active VCs, 64 VCs per VP, 1 current VCCs

VC Auto Creation Disabled.

VC idle disconnect time: 300 seconds

Last input 04:41:53, 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: Per VC Queueing

5 minute input rate 1000 bits/sec, 1 packets/sec

5 minute output rate 1000 bits/sec, 1 packets/sec

4954190 packets input, 1596248379 bytes, 0 no buffer

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

0 input errors, 21215 CRC, 0 frame, 0 overrun, 0 ignored, 1 abort

5413283 packets output, 911039497 bytes, 0 underruns

0 output errors, 0 collisions, 372 interface resets

0 unknown protocol drops

0 output buffer failures, 0 output buffers swapped out

Ethernet2 is down, line protocol is down

Hardware is PQUICC Ethernet, address is 0012.8032.d40e (bia 0012.8032.d40e)

MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full-duplex, 10Mb/s

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: 0/100 (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

5 input errors, 0 CRC, 0 frame, 0 overrun, 5 ignored

0 input packets with dribble condition detected

0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 1 interface resets

0 unknown protocol drops

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

NVI0 is up, line protocol is up

Hardware is NVI

Interface is unnumbered. Using address of NVI0 (0.0.0.0)

MTU 1514 bytes, BW 10000000 Kbit/sec, DLY 0 usec,

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

Encapsulation UNKNOWN, loopback not set

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

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 unknown protocol drops

0 output buffer failures, 0 output buffers swapped out

Dialer1 is up, line protocol is up (spoofing)

Hardware is Unknown

Internet address is XX.XX.XX.XX/32

MTU 1500 bytes, BW 1524 Kbit/sec, DLY 20000 usec,

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

Encapsulation PPP, loopback not set

Keepalive set (10 sec)

DTR is pulsed for 1 seconds on reset

Interface is bound to Vi1

Last input never, output never, output hang never

Last clearing of "show interface" counters 17w5d

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: weighted fair

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/1/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 1143 kilobits/sec

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

4950056 packets input, 1427668224 bytes

5406688 packets output, 851292867 bytes

Bound to:

Virtual-Access1 is up, line protocol is up

Hardware is Virtual Access interface

MTU 1500 bytes, BW 1524 Kbit/sec, DLY 20000 usec,

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

Encapsulation PPP, LCP Open

Open: IPCP

PPPoE vaccess, cloned from Dialer1

Vaccess status 0x44, loopback not set

Keepalive set (10 sec)

Interface is bound to Di1 (Encapsulation PPP)

Last input 00:00:00, output never, output hang never

Last clearing of "show interface" counters 04:42:16

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, 1 packets/sec

5 minute output rate 1000 bits/sec, 1 packets/sec

10539 packets input, 1601176 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

19647 packets output, 2518754 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 unknown protocol drops

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

Virtual-Access1 is up, line protocol is up

Hardware is Virtual Access interface

MTU 1500 bytes, BW 1524 Kbit/sec, DLY 20000 usec,

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

Encapsulation PPP, LCP Open

Open: IPCP

PPPoE vaccess, cloned from Dialer1

Vaccess status 0x44, loopback not set

Keepalive set (10 sec)

Interface is bound to Di1 (Encapsulation PPP)

Last input 00:00:00, output never, output hang never

Last clearing of "show interface" counters 04:42:16

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 2000 bits/sec, 2 packets/sec

5 minute output rate 2000 bits/sec, 2 packets/sec

10542 packets input, 1601326 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

19650 packets output, 2520058 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 unknown protocol drops

0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions Router-10031#sh interface
FastEthernet1 is up, line protocol is up
Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
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: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     4008 packets input, 0 bytes
     Received 0 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
     19525 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet2 is down, line protocol is down
Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto Speed, 100BaseTX/FX
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: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     8488 packets input, 0 bytes
     Received 0 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
     24941 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet3 is down, line protocol is down
Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto Speed, 100BaseTX/FX
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: 0/0 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     208 packets input, 0 bytes
     Received 0 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
     1017 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
FastEthernet4 is administratively down, line protocol is down
Hardware is FastEthernet, address is 0000.0000.0000 (bia 0000.0000.0000)
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto Speed, 100BaseTX/FX
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: 0/0 (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
     Received 0 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
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
Ethernet0 is up, line protocol is up
Hardware is PQUICC Ethernet, address is 0012.8032.d40e (bia 0012.8032.d40e)
Internet address is 10.10.10.1/24
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Mb/s
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: 0/75/0/0 (size/max/drops/flushes); Total output drops: 12
Queueing strategy: fifo
Output queue: 0/100 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 1000 bits/sec, 0 packets/sec
     4229852 packets input, 760442337 bytes, 0 no buffer
     Received 22349 broadcasts, 0 runts, 0 giants, 0 throttles
     5 input errors, 0 CRC, 0 frame, 0 overrun, 5 ignored
     0 input packets with dribble condition detected
     4882284 packets output, 1521940913 bytes, 0 underruns
     0 output errors, 0 collisions, 2 interface resets
     2 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
ATM0 is up, line protocol is up
Hardware is PQUICC_SAR (with Alcatel ADSL Module)
MTU 1500 bytes, sub MTU 1500, BW 1524 Kbit/sec, DLY 80 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ATM, loopback not set
Encapsulation(s): AAL5 AAL2, PVC mode
10 maximum active VCs, 64 VCs per VP, 1 current VCCs
VC Auto Creation Disabled.
VC idle disconnect time: 300 seconds
Last input 04:41:53, 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: Per VC Queueing
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
     4954190 packets input, 1596248379 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 21215 CRC, 0 frame, 0 overrun, 0 ignored, 1 abort
     5413283 packets output, 911039497 bytes, 0 underruns
     0 output errors, 0 collisions, 372 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
Ethernet2 is down, line protocol is down
Hardware is PQUICC Ethernet, address is 0012.8032.d40e (bia 0012.8032.d40e)
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Mb/s
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: 0/100 (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
     5 input errors, 0 CRC, 0 frame, 0 overrun, 5 ignored
     0 input packets with dribble condition detected
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
NVI0 is up, line protocol is up
Hardware is NVI
Interface is unnumbered. Using address of NVI0 (0.0.0.0)
MTU 1514 bytes, BW 10000000 Kbit/sec, DLY 0 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation UNKNOWN, loopback not set
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
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 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
Dialer1 is up, line protocol is up (spoofing)
Hardware is Unknown
Internet address is 74.164.121.125/32
MTU 1500 bytes, BW 1524 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 1 seconds on reset
Interface is bound to Vi1
Last input never, output never, output hang never
Last clearing of "show interface" counters 17w5d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations 0/1/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1143 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
     4950056 packets input, 1427668224 bytes
     5406688 packets output, 851292867 bytes
Bound to:
Virtual-Access1 is up, line protocol is up
Hardware is Virtual Access interface
MTU 1500 bytes, BW 1524 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: IPCP
PPPoE vaccess, cloned from Dialer1
Vaccess status 0x44, loopback not set
Keepalive set (10 sec)
Interface is bound to Di1 (Encapsulation PPP)
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 04:42:16
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, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
     10539 packets input, 1601176 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
     19647 packets output, 2518754 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
Virtual-Access1 is up, line protocol is up
Hardware is Virtual Access interface
MTU 1500 bytes, BW 1524 Kbit/sec, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: IPCP
PPPoE vaccess, cloned from Dialer1
Vaccess status 0x44, loopback not set
Keepalive set (10 sec)
Interface is bound to Di1 (Encapsulation PPP)
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 04:42:16
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 2000 bits/sec, 2 packets/sec
5 minute output rate 2000 bits/sec, 2 packets/sec
     10542 packets input, 1601326 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
     19650 packets output, 2520058 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

paolo bevilacqua · ‎06-20-2011

Was it working ok before ?

Take "show dsl interface".

Also try another router/modem.

jaesposito · ‎06-20-2011

Paolo,

There is only a Cisco 837 connected to the phone line. The 837 has a built in DSL modem on the ATM0 interface (Alcatel ADSL Module). So there are no other devices to troubleshoot except the 837.

Here is the output from the "show dsl interface ATM0" command while the connection is up:

Router-10031#sh dsl interface ATM0
                ATU-R (DS)                      ATU-C (US)
Modem Status:    Showtime (DMTDSL_SHOWTIME)
DSL Mode:        ITU G.992.1 (G.DMT)
ITU STD NUM:     0x01                            0x01
Vendor ID:       'ALCB'                          'ALCB'
Vendor Specific: 0x0000                          0x0000
Vendor Country: 0x00                            0x0F
Capacity Used:   99%                             67%
Noise Margin:     8.0 dB                         16.0 dB
Output Power:    18.5 dBm                        11.0 dBm
Attenuation:     59.0 dB                         31.5 dB
Defect Status:   None                            None
Last Fail Code: Message error
Selftest Result: 0x00
Subfunction:     0x15
Interrupts:      3322 (1 spurious)
Activations:     371
Init FW:         embedded
Operartion FW:   embedded
SW Version:      3.9.220
FW Version:      0x1A04

                 Interleave             Fast    Interleave              Fast
Speed (kbps):          1536                0           384                 0
Reed-Solomon EC:        436                0             0                 0
CRC Errors:               0                0             0                 0
Header Errors:            0                0             0                 0
Bit Errors:               0                0
BER Valid sec:            0                0
BER Invalid sec:          0                0

LOM Monitoring : Disabled

DMT Bits Per Bin
00: 0 0 0 0 0 0 0 4 5 5 6 6 7 7 7 6
10: 6 7 6 6 6 6 6 6 5 5 5 4 4 3 0 0
20: 0 0 0 0 0 0 5 5 6 6 5 5 6 7 6 7
30: 6 6 5 6 6 6 6 5 5 4 5 5 5 5 5 4
40: 3 4 4 4 4 4 4 3 3 2 2 2 3 3 3 3
50: 4 4 3 3 3 3 3 3 4 4 4 4 4 4 5 6
60: 7 7 2 8 7 8 8 8 8 7 7 5 8 7 6 6
70: 4 4 2 6 6 6 6 4 2 2 4 5 5 5 3 0
80: 0 2 4 4 4 2 0 0 0 2 2 3 2 0 0 0
90: 2 2 3 2 0 0 0 2 2 2 2 0 2 0 2 2
A0: 2 2 0 2 0 0 0 2 2 0 0 0 0 0 0 0
B0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
C0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
D0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
E0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Training log buffer capability is not enabled yet.

paolo bevilacqua · ‎06-20-2011

Your circuit has very high attenuation and will never work good as it is now.

Have telco switch you to a better pair if they have it.

jaesposito · ‎06-21-2011

Thank you for the information. What attenuation figure is high (59.0 dB or 31.5 dB) and what should the figure be ideally?

Thanks,

James

paolo bevilacqua · ‎06-21-2011

http://www.naschenweng.info/2008/10/16/adsl-significance-of-snr-and-attenuation

please remember to rate useful posts clicking on the stars below.

jaesposito · ‎06-21-2011

hanks for the article. That is a good read. Of course, this gives me more questions.

Note that the output of the "show dsl interface ATM0" command displays two values for attenuation:

ATU-R (DS) = 59.0 dB

ATU-C (US) = 31.5dB

So I have four questions:

1.) What is the difference between the two?

2.) Which one is relevant for my conversation with my carrier?

3.) Where can I see the "Signal to Noise Ratio" (SNR) on my interface stats?

4.) How can I tell from my 837 router if Interleaving is enabled on the carrier side?

I will rate the posts and select a "correct answer" shortly. Thanks for the help!

James

jaesposito · ‎06-27-2011

Paolo,

Can you answer the four questions in my last post? Then I will rate your posts. Thanks!

James