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der1269
Premium
join:2003-01-08
Livonia, MI

NOOOO!! Not again!!!

Anybody else have/had this problem:

Cisco678 router, speeds are good when it is connected, but many times it craps out and cannot regain (good) connection for almost an hour (or longer). Here's what happens, wan link led goes off, dsl disconnects, attempts to reconnect, connects very slow speed for 5-15 seconds, drops again (process repeats for hours). It's pissing me off, tech support has not been able to help. Any tips, I've already tried changing the DSN, but I have no idea if that would do anything anyway.
--
Welcome to Popov America, our new headquarters is in Italy!

HAL6664

join:2003-01-15
Beverly Hills, CA
If you can get into the 678, do a SHOW ERRORS at the CBOS prompt, and that may show you if you are losing connectivity. It's probably NOT the DNS. If you want to see the 678 command list go here:

»www.cisco.com/univercd/cc/td/doc···ap02.htm

and here for the other info:

»www.cisco.com/univercd/cc/td/doc···ap01.htm

»www.cisco.com/univercd/cc/td/doc···ap03.htm

It sounds more like a network configuration problem, not simply a router problem. Have you confirmed that the 678 configuration is correct? If yes, then you need to have Cyberonic do a three-way call to WorldCom for line troubleshooting (when you do your initial cold start-up at the beginning of the day --- assuming you turn it all off every day). I never turn it off, rather I just leave it plugged into the UPS 24x7. Remember that if Worldcom is going to do troubleshooting, that you CANNOT be calling on the same line as your DSL line, and that all phones & splitters have to be unplugged from each wall jack. Did you put a splitter on every jack that has a phone connected ? This may be your problem, if you have a phone in a jack without a splitter.


der1269
Premium
join:2003-01-08
Livonia, MI
reply to der1269
here's my error report,

with vpi 1 and vci 4
1 000:00:00:15 ATM Info Wan0 Up
2 000:00:05:16 ADSL Info crc_errors(144) exceeded threshold.
3 000:00:05:16 ATM Info Wan0 Down
4 000:00:05:17 ATM Info WAN 0 physical layer is down
5 000:00:05:17 COMMANDER Info WAN 0 physical layer is down
6 000:00:05:32 ATM Info Wan0 Up
7 000:04:05:27 ADSL Info crc_errors(1122) exceeded threshold.
8 000:04:05:27 ATM Info Wan0 Down
9 000:04:05:28 ATM Info WAN 0 physical layer is down
10 000:04:05:28 COMMANDER Info WAN 0 physical layer is down
11 000:04:05:44 ATM Info Wan0 Up
12 000:04:32:11 ADSL Info crc_errors(418) exceeded threshold.
13 000:04:32:11 ATM Info Wan0 Down
14 000:04:32:11 ATM Info WAN 0 physical layer is down
15 000:04:32:11 COMMANDER Info WAN 0 physical layer is down
16 000:04:32:23 ATM Info Wan0 Up
17 000:04:38:23 ADSL Info crc_errors(99) exceeded threshold.
18 000:04:38:23 ATM Info Wan0 Down
19 000:04:38:24 ATM Info WAN 0 physical layer is down
20 000:04:38:24 COMMANDER Info WAN 0 physical layer is down
21 000:04:38:42 ATM Info Wan0 Up
Total Number of Error Messages: 22

if this helps any.
--
Welcome to Popov America, our new headquarters is in Italy!


MPScan
Premium
join:2001-08-24
Boston, MA
reply to der1269
I'm getting the exact same thing. Type this at cbos>, "show interface wan0" and post the results here.

stuntcow
Mooo

join:2001-08-09
Bay Area
reply to der1269
said by der1269:
with vpi 1 and vci 4
I may be wrong, but don't you need 0/35 for Worldcom?

HAL6664

join:2003-01-15
Beverly Hills, CA
reply to der1269
Be sure that you can see the following ATM WAN parameters when you do SHOW RUN:

ATM WAN Virtual Connection Parms = 00, 0, 35, 0


der1269
Premium
join:2003-01-08
Livonia, MI
reply to MPScan
Sorry it took so long, I had to go to class,

cbos>show interface wan0

wan0 ADSL Physical Port
Line Trained
Actual Configuration:
Overhead Framing: 3
Trellis Coding: Enabled
Standard Compliance: T1.413
Downstream Data Rate: 1536 Kbps
Upstream Data Rate: 768 Kbps
Interleave S Downstream: 4
Interleave D Downstream: 4
Interleave R Downstream: 16
Interleave S Upstream: 4
Interleave D Upstream: 2
Interleave R Upstream: 8
Modem Microcode: G96
DSP version: 0
Operating State: Showtime/Data Mode
Configured:
Echo Cancellation: Disabled
Overhead Framing: 3
Coding Gain: Auto
TX Power Attenuation: 0dB
Trellis Coding: Enabled
Bit Swapping: Disabled
Standard Compliance: T1.413
Remote Standard Compliance: T1.413
Tx Start Bin: 0x6
Tx End Bin: 0x1f
Data Interface: Utopia L1
Status:
Local SNR Margin: 10.0dB
Local Coding Gain: 7.5dB
Local Transmit Power: 12.5dB
Local Attenuation: 47.5dB
Remote Attenuation: 31.5dB
Local Counters:
Interleaved RS Corrected Bytes: 16881
Interleaved Symbols with CRC Errors: 54
No Cell Delineation Interleaved: 0
Out of Cell Delineation Interleaved: 0
Header Error Check Counter Interleaved: 90
Count of Severely Errored Frames: 0
Count of Loss of Signal Frames: 0
Remote Counters:
Interleaved RS Corrected Bytes: 0
Interleaved Symbols with CRC Errors: 0
No Cell Delineation Interleaved: 0
Header Error Check Counter Interleaved: 0
Count of Severely Errored Frames: 0
Count of Loss of Signal Frames: 0

cbos>
--
Welcome to Popov America, our new headquarters is in Italy!


der1269
Premium
join:2003-01-08
Livonia, MI

reply to HAL6664
This is what is SHOW RUN:

cbos#show run
Warning: traffic may pause while NVRAM is being accessed
[[ CBOS = Section Start ]]
NSOS 1483 Routing = enabled
NSOS Ethernet Speed = autodetect
NSOS Strict Exec Password = enabled
NSOS MD5 Root Password = D9180000C0780000E52D0000C15A00006D4DA971D47CCEEC20B52A9
DA638C077
NSOS MD5 Commander Password = C10A0E2009CC6E54161400453E424DFC
NSOS MD5 Enable Password = 9F5A0000633B0000622E0000C7480000E8030B6A57467B46613A6
B20C66EDDFB
[[ TFTP = Section Start ]]
[[ IP Routing = Section Start ]]
IP Port Address = 00, .:D.:).:[
IP Port Address Mask = 00, 255.255.255.252
[[ ATM WAN Device Driver = Section Start ]]
ATM WAN Virtual Connection Parms = 00, 0, 35, 0
[[ SNMP Management = Section Start ]]
SNMP = enabled
--
Welcome to Popov America, our new headquarters is in Italy!


[IP address masked per request of author-RD]
[text was edited by moderator]

HAL6664

join:2003-01-15
Beverly Hills, CA
Your config looks the same as mine, but you seem to have significant line attenuation and numerous carrier transitions. This translates (IMHO) to a physical line problem. This can only be resolved with assistance from the NOC (Worldcom). Have you tried to change your telephone line input into the 678 to a different phone jack in your house? (I had trouble with one jack in my house, but it went away when I moved the connection to a different jack. Eventually, I just ran a DIRECT CAT-5 connection to the phone company network inteface, and I haven't had a problem since). Have you tried any basic troubleshooting like unplugging all of the phones & splitters in your house and seeing if your connection status improves (no carrier transition& line attenuation)? Dude I don't know what else to tell ya.