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CRC errors

 
 
Roel
Guest
Posts: n/a
 
      01-09-2007
Hello,

I have a cisco 2821 with a HWIC-1ADSL running.

When I give a "show interface atm0/0/0" command I see CRC-errors (about
30/min):
(also note that there are no input errors)

router#sh int atm0/0/0
ATM0/0/0 is up, line protocol is up
Hardware is HWIC-DSLSAR (with Alcatel ADSL Module)
MTU 4470 bytes, sub MTU 4470, BW 1016 Kbit, DLY 500 usec,
reliability 255/255, txload 1/255, rxload 40/255
Encapsulation ATM, loopback not set
Encapsulation(s): AAL5 AAL2, PVC mode
23 maximum active VCs, 256 VCs per VP, 1 current VCCs
VC Auto Creation Disabled.
VC idle disconnect time: 300 seconds
Last input never, 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: 153
Queueing strategy: Per VC Queueing
5 minute input rate 162000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 2 packets/sec
88183 packets input, 125414082 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 29 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
48726 packets output, 3586484 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out

But when I give the command "show atm pvc 8/48" now I don't see them:

router#sh atm pvc 8/48
Description: N/A
ATM0/0/0: VCD: 1, VPI: 8, VCI: 48, Connection Name: 0
UBR, PeakRate: 1016 (2397 cps)
AAL5-MUX, etype:0x9, Flags: 0xC24, VCmode: 0x0, Encapsize: 4
OAM frequency: 0 second(s), OAM retry frequency: 1 second(s)
OAM up retry count: 3, OAM down retry count: 5
OAM END CC Activate retry count: 3, OAM END CC Deactivate retry count: 3
OAM END CC retry frequency: 30 second(s),
OAM SEGMENT CC Activate retry count: 3, OAM SEGMENT CC Deactivate retry
count: 3
OAM SEGMENT CC retry frequency: 30 second(s),
OAM Loopback status: OAM Disabled
OAM VC Status: Not Managed
ILMI VC status: Not Managed
InARP DISABLED
InPkts: 89329, OutPkts: 50188, InBytes: 126197123, OutBytes: 3856946
InPRoc: 1942, OutPRoc: 293, Broadcasts: 0
InFast: 87386, OutFast: 48232, InAS: 0, OutAS: 0
InPktDrops: 0, OutPktDrops: 226/0/226 (holdq/outputq/total)
CrcErrors: 0, SarTimeOuts: 0, OverSizedSDUs: 0, LengthViolation: 0,
CPIErrors: 0
Out CLP=1 Pkts: 0
OAM cells received: 0
F5 InEndloop: 0, F5 InSegloop: 0,
F5 InEndcc: 0, F5 InSegcc: 0, F5 InAIS: 0, F5 InRDI: 0
F4 InEndloop: 0, F4 InSegloop: 0, F4 InAIS: 0, F4 InRDI: 0
OAM cells sent: 0
F5 OutEndloop: 0, F5 OutSegloop: 0,
F5 OutEndcc: 0, F5 OutSegcc: 0, F5 OutAIS: 0, F5 OutRDI: 0
F4 OutEndloop: 0, F4 OutSegloop: 0, F4 OutRDI: 0
OAM cell drops: 0
Status: UP
PPP: Virtual-Access2 from Dialer0
PPPoA Current State = VACCESS_ATTACHED
PPPoA Latest Event = Vaccess Up
PPPoA Latest Error = None
PPPoA Session ID = 0
PPPoA Handle = 0x03000001, SSS Handle = 0x00000000
Switch Handle = 0x00000000, PPP Handle = 0x00000000
AAA Unique ID = 0x00000000, AIE Handle = 0x00000000

Any suggestions about what the problem can be? I already tried another IOS,
but that makes no difference.

And here is the output of a "show dsl interface atm0/0/0":

router# sh dsl int atm0/0/0
ATM0/0/0
Alcatel 20190 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.5 (ADSL2+) Annex A
ITU STD NUM: 0x03 0x2
Chip Vendor ID: 'STMI' 'BDCM'
Chip Vendor Specific: 0x0000 0x618F
Chip Vendor Country: 0x0F 0xB5
Modem Vendor ID: 'CSCO' ' '
Modem Vendor Specific: 0x0000 0x0000
Modem Vendor Country: 0xB5 0x00
Serial Number Near: FOC10200R83CISCO73993205
Serial Number Far:
Modem Version Near: 12.4(11)T
Modem Version Far:
Capacity Used: 100% 100%
Noise Margin: 8.0 dB 7.5 dB
Output Power: 17.0 dBm 12.0 dBm
Attenuation: 39.0 dB 12.0 dB
Defect Status: None None
Last Fail Code: None
Watchdog Counter: 0x79
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction: 0x00
Interrupts: 3869 (0 spurious)
PHY Access Err: 0
Activations: 1
LED Status: OFF
LED On Time: 0
LED Off Time: 0
Init FW: init_AMR-R-2.5.042_no_bist.bin
Operation FW: AMR-R-2.5.042.bin
FW Source: embedded
FW Version: 2.5.42

DS Channel1 DS Channel0 US Channel1 US
Channel0
Speed (kbps): 0 13607 0 1016
Cells: 0 2759202 0 5858271
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 135 0 0
Header Errors: 0 83 0 0
Total BER: 0E-0 2158E-10
Leakage Average BER: 0E-0 2158E-10
Interleave Delay: 0 19 0 0

LOM Monitoring : Disabled


DMT Bits Per Bin
000: 0 0 0 0 0 0 0 6 8 A A B B C C C
010: C C C C D C C C C B B B A A A A
020: 0 2 4 4 6 7 8 8 9 9 9 A A A 9 9
030: 9 A A A 9 B C C C C C C C C C C
040: C B B C B B B B B B B B B B B B
050: B B B B B B B 2 B B B B B B B B
060: B B B B B B B B B B B B B B B A
070: A A A A A A A A A A A A A A A A
080: A A A A A A A A A A A A A A A A
090: A A A 9 9 A 9 9 9 9 9 9 9 9 9 9
0A0: 9 9 9 9 9 A 9 9 9 9 9 9 9 9 9 9
0B0: 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
0C0: 9 8 9 9 9 8 8 9 8 8 8 8 8 8 8 9
0D0: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
0E0: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
0F0: 9 9 8 A 8 8 8 8 8 8 8 8 8 8 8 8
100: A 9 9 9 9 8 8 7 6 5 4 4 0 8 8 8
110: 8 9 9 9 9 A A A A A A A B A A A
120: B A A A A A 8 A A A A A A A A A
130: A A A A A A A 8 A A A A A A 9 9
140: A A A 9 9 9 9 9 9 9 8 9 9 9 9 8
150: 4 8 8 9 9 9 9 8 8 8 8 8 8 8 8 8
160: 8 8 8 8 8 8 8 8 8 7 7 7 7 7 7 7
170: 7 7 7 7 7 7 7 7 7 7 7 7 7 6 6 7
180: 7 7 6 7 6 7 6 6 6 6 6 6 6 6 6 6
190: 6 6 6 6 6 6 6 6 6 6 6 6 6 5 5 5
1A0: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
1B0: 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4
1C0: 4 4 3 4 4 4 4 4 4 4 4 4 3 3 3 3
1D0: 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2
1E0: 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0
1F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

DSL: Training log buffer capability is not enabled
router#

Thanks in advance for the suggestions!

Roel

 
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Mike jones
Guest
Posts: n/a
 
      01-09-2007
some CRCs on an ADSL line are ok, if you have a shared phone line make sure
you have filters on all other devices connected to your ADSL line.
"Roel" <(E-Mail Removed)> wrote in message
news:45a2fb99$0$338$(E-Mail Removed)4all.nl...
> Hello,
>
> I have a cisco 2821 with a HWIC-1ADSL running.
>
> When I give a "show interface atm0/0/0" command I see CRC-errors (about
> 30/min):
> (also note that there are no input errors)
>
> router#sh int atm0/0/0
> ATM0/0/0 is up, line protocol is up
> Hardware is HWIC-DSLSAR (with Alcatel ADSL Module)
> MTU 4470 bytes, sub MTU 4470, BW 1016 Kbit, DLY 500 usec,
> reliability 255/255, txload 1/255, rxload 40/255
> Encapsulation ATM, loopback not set
> Encapsulation(s): AAL5 AAL2, PVC mode
> 23 maximum active VCs, 256 VCs per VP, 1 current VCCs
> VC Auto Creation Disabled.
> VC idle disconnect time: 300 seconds
> Last input never, 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: 153
> Queueing strategy: Per VC Queueing
> 5 minute input rate 162000 bits/sec, 1 packets/sec
> 5 minute output rate 1000 bits/sec, 2 packets/sec
> 88183 packets input, 125414082 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> 0 input errors, 29 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
> 48726 packets output, 3586484 bytes, 0 underruns
> 0 output errors, 0 collisions, 0 interface resets
> 0 output buffer failures, 0 output buffers swapped out
>
> But when I give the command "show atm pvc 8/48" now I don't see them:
>
> router#sh atm pvc 8/48
> Description: N/A
> ATM0/0/0: VCD: 1, VPI: 8, VCI: 48, Connection Name: 0
> UBR, PeakRate: 1016 (2397 cps)
> AAL5-MUX, etype:0x9, Flags: 0xC24, VCmode: 0x0, Encapsize: 4
> OAM frequency: 0 second(s), OAM retry frequency: 1 second(s)
> OAM up retry count: 3, OAM down retry count: 5
> OAM END CC Activate retry count: 3, OAM END CC Deactivate retry count: 3
> OAM END CC retry frequency: 30 second(s),
> OAM SEGMENT CC Activate retry count: 3, OAM SEGMENT CC Deactivate retry
> count: 3
> OAM SEGMENT CC retry frequency: 30 second(s),
> OAM Loopback status: OAM Disabled
> OAM VC Status: Not Managed
> ILMI VC status: Not Managed
> InARP DISABLED
> InPkts: 89329, OutPkts: 50188, InBytes: 126197123, OutBytes: 3856946
> InPRoc: 1942, OutPRoc: 293, Broadcasts: 0
> InFast: 87386, OutFast: 48232, InAS: 0, OutAS: 0
> InPktDrops: 0, OutPktDrops: 226/0/226 (holdq/outputq/total)
> CrcErrors: 0, SarTimeOuts: 0, OverSizedSDUs: 0, LengthViolation: 0,
> CPIErrors: 0
> Out CLP=1 Pkts: 0
> OAM cells received: 0
> F5 InEndloop: 0, F5 InSegloop: 0,
> F5 InEndcc: 0, F5 InSegcc: 0, F5 InAIS: 0, F5 InRDI: 0
> F4 InEndloop: 0, F4 InSegloop: 0, F4 InAIS: 0, F4 InRDI: 0
> OAM cells sent: 0
> F5 OutEndloop: 0, F5 OutSegloop: 0,
> F5 OutEndcc: 0, F5 OutSegcc: 0, F5 OutAIS: 0, F5 OutRDI: 0
> F4 OutEndloop: 0, F4 OutSegloop: 0, F4 OutRDI: 0
> OAM cell drops: 0
> Status: UP
> PPP: Virtual-Access2 from Dialer0
> PPPoA Current State = VACCESS_ATTACHED
> PPPoA Latest Event = Vaccess Up
> PPPoA Latest Error = None
> PPPoA Session ID = 0
> PPPoA Handle = 0x03000001, SSS Handle = 0x00000000
> Switch Handle = 0x00000000, PPP Handle = 0x00000000
> AAA Unique ID = 0x00000000, AIE Handle = 0x00000000
>
> Any suggestions about what the problem can be? I already tried another
> IOS, but that makes no difference.
>
> And here is the output of a "show dsl interface atm0/0/0":
>
> router# sh dsl int atm0/0/0
> ATM0/0/0
> Alcatel 20190 chipset information
> ATU-R (DS) ATU-C (US)
> Modem Status: Showtime (DMTDSL_SHOWTIME)
> DSL Mode: ITU G.992.5 (ADSL2+) Annex A
> ITU STD NUM: 0x03 0x2
> Chip Vendor ID: 'STMI' 'BDCM'
> Chip Vendor Specific: 0x0000 0x618F
> Chip Vendor Country: 0x0F 0xB5
> Modem Vendor ID: 'CSCO' ' '
> Modem Vendor Specific: 0x0000 0x0000
> Modem Vendor Country: 0xB5 0x00
> Serial Number Near: FOC10200R83CISCO73993205
> Serial Number Far:
> Modem Version Near: 12.4(11)T
> Modem Version Far:
> Capacity Used: 100% 100%
> Noise Margin: 8.0 dB 7.5 dB
> Output Power: 17.0 dBm 12.0 dBm
> Attenuation: 39.0 dB 12.0 dB
> Defect Status: None None
> Last Fail Code: None
> Watchdog Counter: 0x79
> Watchdog Resets: 0
> Selftest Result: 0x00
> Subfunction: 0x00
> Interrupts: 3869 (0 spurious)
> PHY Access Err: 0
> Activations: 1
> LED Status: OFF
> LED On Time: 0
> LED Off Time: 0
> Init FW: init_AMR-R-2.5.042_no_bist.bin
> Operation FW: AMR-R-2.5.042.bin
> FW Source: embedded
> FW Version: 2.5.42
>
> DS Channel1 DS Channel0 US Channel1 US
> Channel0
> Speed (kbps): 0 13607 0
> 1016
> Cells: 0 2759202 0
> 5858271
> Reed-Solomon EC: 0 0 0
> 0
> CRC Errors: 0 135 0
> 0
> Header Errors: 0 83 0
> 0
> Total BER: 0E-0 2158E-10
> Leakage Average BER: 0E-0 2158E-10
> Interleave Delay: 0 19 0
> 0
>
> LOM Monitoring : Disabled
>
>
> DMT Bits Per Bin
> 000: 0 0 0 0 0 0 0 6 8 A A B B C C C
> 010: C C C C D C C C C B B B A A A A
> 020: 0 2 4 4 6 7 8 8 9 9 9 A A A 9 9
> 030: 9 A A A 9 B C C C C C C C C C C
> 040: C B B C B B B B B B B B B B B B
> 050: B B B B B B B 2 B B B B B B B B
> 060: B B B B B B B B B B B B B B B A
> 070: A A A A A A A A A A A A A A A A
> 080: A A A A A A A A A A A A A A A A
> 090: A A A 9 9 A 9 9 9 9 9 9 9 9 9 9
> 0A0: 9 9 9 9 9 A 9 9 9 9 9 9 9 9 9 9
> 0B0: 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9
> 0C0: 9 8 9 9 9 8 8 9 8 8 8 8 8 8 8 9
> 0D0: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
> 0E0: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
> 0F0: 9 9 8 A 8 8 8 8 8 8 8 8 8 8 8 8
> 100: A 9 9 9 9 8 8 7 6 5 4 4 0 8 8 8
> 110: 8 9 9 9 9 A A A A A A A B A A A
> 120: B A A A A A 8 A A A A A A A A A
> 130: A A A A A A A 8 A A A A A A 9 9
> 140: A A A 9 9 9 9 9 9 9 8 9 9 9 9 8
> 150: 4 8 8 9 9 9 9 8 8 8 8 8 8 8 8 8
> 160: 8 8 8 8 8 8 8 8 8 7 7 7 7 7 7 7
> 170: 7 7 7 7 7 7 7 7 7 7 7 7 7 6 6 7
> 180: 7 7 6 7 6 7 6 6 6 6 6 6 6 6 6 6
> 190: 6 6 6 6 6 6 6 6 6 6 6 6 6 5 5 5
> 1A0: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
> 1B0: 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 4
> 1C0: 4 4 3 4 4 4 4 4 4 4 4 4 3 3 3 3
> 1D0: 3 3 3 3 3 3 3 3 3 2 2 2 2 2 2 2
> 1E0: 2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0
> 1F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>
> DSL: Training log buffer capability is not enabled
> router#
>
> Thanks in advance for the suggestions!
>
> Roel
>



 
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