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Maybe the Ossicom has bit the big one and is unstable or leaky (or took one-too-many environmental power surges). Information to troubleshoot physical layer and data link layer problems. Set your clockrate by that. You'll still need a login though..."Did you know that Output Interpreter supports the following functionality?Show command outputs from your Router, Switch or PIX Firewall. Source

Good Luck Scott #4 ScottMac, Jul 29, 2002 randal Golden Member Joined: Jun 3, 2001 Messages: 1,890 Likes Received: 0 As is, my LBO is zero on both ends ... Quote Stotic Senior Member Join Date Oct 2006 Location New York Posts 251 Certifications CCNA, CCNA:Security, CCDA, CCNP 09-22-200905:55 PM #13 Like others are saying, if the loopback tests fine Serial cable is too long or cable from the CSU/DSU to the router is notshieldedc. Data in current interval (834 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored http://internet-access-guide.com/how-to-solve-connection-problems-in-t1-links/

Crc Errors On T1 Circuit

Itshould be used in conjunction with other commands such as 'show interface serial','show isdn status' and 'show isdn service' (if ISDN is applicable). Mark -- [] | A scientist can discover a new star, but he [] Mark Rogaski | cannot make one. Refer to Channelized E1 and Channelized T1 Setup Commands for more information regarding channel groups. Anybody still in doubt that a Trump Presidency is a national disaster?

Yes No Feedback Let Us Help Open a Support Case (Requires a Cisco Service Contract) Related Support Community Discussions Share Information For Small Business Midsize Business Service Provider Industries Automotive Consumer He would have to ask an engineer [] wendigo [at] pobox | to do that. [] mrogaski [at] cpan | -- Gordon L. You know, all them damn customers messing with the line settings back at the CO....sheesh. T1 Troubleshooting Guide A dedicated CAT5e is always better.Really.quote:Originally posted by dfedders:Problem was on the telco side.

CRC Threshold is 320. T1 Line Code Violations Set both the primary and secondary T1 clock source from controller configuration mode. As that the Telco do an END to END intrusive test (tell them you want test gear to their respective DEMARC on both sides). Internet Access Guide Guide to High Speed Internet Home Wireless 3G 4G Bluetooth Wi-Fi 802.11ac Wi-Fi Calling Wi-Fi Hotspots Wireless Network Cable Internet DSL Fiber Optic Internet of Things Satellite Internet

maui-nas-03(config)#interface serial 0:23 maui-nas-03(config-if)#no shutdown Ensure encapsulation is PPP. B8zs Exceptions you may be willing to make is if it's a very rural circuit and there are a very low level of errors. SCTE (serial clock transmit external) mode is not enabled on the DSU; theCSU line clock is incorrectly configured; one of the clocks is configuredfor local clockingd. If you're using Cat3,4,5,5e, or 6 ...

T1 Line Code Violations

Look for Line Code is {B8ZS|AMI} in the show controller t1 output. https://forums.anandtech.com/threads/t1-crc-frame-errors-ideas.855047/ Newer Than: Search this thread only Search this forum only Display results as threads More... Crc Errors On T1 Circuit Please help Networking Jun 8, 2003 Your name or email address: Do you already have an account? T1 Slip Errors The A end reports no errors at all, incoming or outgoing.

the traffic should be symetrical on the sending system (for every frame sent, you should get a frame back) watch the counters on the sending router. this contact form Occasionally the line drops completely, and I have to unplug one end, wait a minute, then plug it back in -- it magically comes up after that, but then the errors What's causing CRC errors on serial interfaces in multilink T1 group Unanswered Question gwhuang5398 Aug 26th, 2008 I have a 2xT1 running multilink PPP. T1: A Survival Guide covers the following broad topics: What components are needed to build a T1 line, and how those components interact to transmit data effectively How to use standardized T1 Errors Explained

Plug that into the SJ on one side. It's the fact that their timing isn't 100% reliable -- even when running off of their timing (network/slave on both ends) I am still getting loads of crc & frame errors. Join Date Oct 2007 Location OK Posts 560 Certifications CCIE R&S and DC, CCIP, CCNP, CCNA, CCENT, Network+, A+, MCDST, MCP, ) 09-22-200901:51 PM #2 What line code are you all http://swirlvision.com/crc-errors/crc-errors-dsl.html As an example, here's what it says about the two show commands you included in your post:SHOW INTERFACE SERIAL NOTIFICATIONS (if any)Interface Serial0/0 (up/up)INFO: Please click the link below to have

T1 0/0/0 is up. Maybe I'm just showing my inexperience, but I have an ILEC telling me (verbally; they refused to put it in writing, suggesting that I google it instead) that fulling utilizating a Note:If there are multiple T1s coming into an access server, only one can be the primary source.

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They finally found that it was both a bad pair at the CO and insufficient grounding on their side of the smartjack at our location.Good luck. I have WIC T1 cards in each router, so the CSUs are internal.As far as I know, this T1 line has been working fine. Ensure that the line is clean enough for transmission requirements. Always verify that your line coding is correct.

Serial0/1/0:0 is up, line protocol is down Hardware is GT96K Serial Internet address is 10.12.254.106/30 MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation This tool, along with other Cisco TAC Tools, is found in Tools and Utilities. If youare attempting serial connections at speeds greater than 64 kbps with aCSU/DSU that does not support (SCTE), you might have to invert thetransmit clock on the router. http://swirlvision.com/crc-errors/crc-errors-on-dsl.html I've heard that there are issues with increasing the LBO if there is a smartjack in the way, which I'm pretty sure there is as this T-1 was installed < 2

If you can throw a hard loop on both ends and test that way and get errors, the problem is in the copper. All other trademarks, including those of Microsoft, CompTIA, Juniper ISC(2), and CWNP are trademarks of their respective owners. Powered by vBulletin Version 4Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.