T1 line problems

Post #28,352 by boxley 2/14/02 10:23:00 AM Reply	T1 line problems have an x25 network that no matter what I do cant get better thruput than .52 k/s the router is a cisco providing clocking to my card, line speed 56k I am looking for an external clock and we are both useing modulo 8. Any wild ideas? thanx, bill Mike Doogan "Then there's figure skating and ice dancing and snowboarding. The winners are all chosen by judges. That's not sports. That's politics. And curling? If curling is a sport, pork rinds are a health food."
Post #28,418 by nking 2/14/02 8:49:01 PM Reply	Check for electrical devices any EMF radiation can affect the line speed or block the signal. Some common disturbers: 1. One or more cordless phones. 2. Nearby radio stations or Ham radio equipment. 3. Garage door openers near the data line. 4. Bridge Tap (which means you have a short circuit on the line somewhere) 5. Sodium lights or other special lights near the line. 6. Bad wiring or filters on the line. 7. Crosstalk if next to another line or wire. How many twists per foot is the wires getting? 8. Power lines near the data line. 9. other electric appliance near the data line. 10. When all else fails, try to rewire it. Check the jacks, the connectors, etc. We learned this from DSL school, almost anything can interrupt the line or slow down the data. A line coil on the line, a bridge tap, or a disturber can knock out DSL or slow it down to an unacceptable level. I assume that T1 works the same but doesn't use the phone line? "Will code Visual BASIC for cash."
Post #28,446 by a6l6e6x 2/15/02 1:37:29 AM 2/15/02 1:47:19 AM Reply	Have you tried Google? Here is [link\|http://www.cisco.com/warp/public/116/index.shtml\|link] to Cisco T1 troubleshooting. Also, their comments on [link\|http://www.cisco.com/warp/public/116/sgl_clocking.html\|clocking]. [link\|http://www.cisco.com/warp/public/133/index.shtml\|More] Cisco X.25 hints. [link\|http://www.alliancedatacom.com/cisco-x25-troubleshooting.htm\|Another], go down to Troubleshooting Physical Connections. Alex "Of course, you realize this means war." -B. Bunny Edited by a6l6e6x Feb. 15, 2002, 01:40:24 AM EST Edited by a6l6e6x Feb. 15, 2002, 01:43:50 AM EST Edited by a6l6e6x Feb. 15, 2002, 01:47:19 AM EST Expand All History
Post #28,475 by boxley 2/15/02 9:21:23 AM Reply	lots of good stuff I already was aware of, nothing that seem to assist but some good links to bookmark in any case. thanx, bill Mike Doogan "Then there's figure skating and ice dancing and snowboarding. The winners are all chosen by judges. That's not sports. That's politics. And curling? If curling is a sport, pork rinds are a health food."
Post #29,006 by Brandioch 2/19/02 10:48:56 PM Reply	How are you measuring speed? Is your current throughput .52Kb/s? Such as, a little bit over 512b/s?
Post #29,072 by boxley 2/20/02 12:19:20 PM Reply	0.344 KBytes/s "I'm selling a hammer," he says. "They can beat nails with it, or their dog." Richard Eaton spy software innovator
Post #29,556 by morganek 2/24/02 1:30:26 PM Reply	Question Bill, When you say that the Cisco is providing clocking, is this on a completely internal circuit (i.e. just a cable or a conditioned line between the Cisco and your card)? The reason I ask is because if it's a T1 provided by a telco, then you should be using external (network) clocking on both ends of the circuit because your devices do not speak directly to each other--they each speak to telco equipment. I do not have any experience worth mentioning with data T1's since they've always either worked or not worked. But I have seen oddball things like this with T1 voice trunks (working half-assed). Please forgive me in advance if I'm out of my depth here. Mike
Post #29,609 by boxley 2/25/02 9:55:40 AM Reply	cable between cisco and card "I'm selling a hammer," he says. "They can beat nails with it, or their dog." Richard Eaton spy software innovator

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