RE: FrameRelay Over Utilized [7:13349]
This is a telco problem. Overutilization will not cause CRC's. Your interface resets are being caused by missing/corrupted LMI packets. I would be concerned about the high CRC errors for starters. You could also look at show frame lmi and see how quickly you seem to be loosing LMI packets. The interface will come down if you loose more than 3 consecutive lmi packets. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=14022t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
send me debug frame-relay lmi output -Original Message- From: Jeff [mailto:[EMAIL PROTECTED]] Sent: Monday, July 23, 2001 5:20 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13352t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
Hi Jeff, I've worked for 2 telco's as a FR-troubleshooter. The experience I have is that the telco looks at the logs of their FR-switch (we used the Stratacom IPX/IGX) and if they see a utilisation of 70% or up, they declare the PVC is overutilised. If you could tell me which provider you have, I could perhaps provide you with some background info on that. If you want to test wether it's the utilisation or something else that's causing the problem, here's a scenario you might try: disable all forwarding off packets towards your FR PVC (with a temporary accesslist for example) and monitor your interface for a while. The only traffic between you and your provider should now be LMI. If the link continues to drop, there's definitely another problem. Should it stay up, without errors, you've proven that it's the utilisation causing the problems. Hth, Remmert Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13354t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
also these outputs show interfaces serial show controllers serial debug serial interface -Original Message- From: Jeff [mailto:[EMAIL PROTECTED]] Sent: Monday, July 23, 2001 5:20 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13355t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: FrameRelay Over Utilized [7:13349]
Telco problem.over utilization should not make a PVC drop just casue drop packets spevailly if you are exceeding the prot speed. Raul - Original Message - From: Jeff To: Sent: Monday, July 23, 2001 9:20 AM Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13357t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: FrameRelay Over Utilized [7:13349]
You can look at load, but u may want to check your cable and CSU setting. And you could run a debug lmi and sh frame lmi to seen the state of your frame-relay. Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13359t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
Jeff, Is this a port that you can set the clock rate? If so, you can try to limit the problem by doing so. In addition, ask your telco why overutilization is causing CRC's. This is not a direct result of overutilization (unless you are extremely over), but is more likely a line problem. Are you providing your own Router? If so, ask the telco to dispatch out to prove that the line is OK. Most CSUs have a loop that will loop back to your router. While there are not any stress patterns you can run, the interface will show (looped). If over a 15 minute timeframe you see no CRCs or drops, then the router to the CSU should be good. Keep in mind that interface resets should occur during this test. What is the telco saying with regard to overutlization? Did they say that you are exceeding the CIR? PIR? By how much? Darel Graham -Original Message- From: Jeff [mailto:[EMAIL PROTECTED]] Sent: Monday, July 23, 2001 9:20 AM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13372t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: FrameRelay Over Utilized [7:13349]
Results of debug frame-relay lmi command: Jul 23 12:26:08.515 EDT: Serial0/1(in): Status, myseq 31 Jul 23 12:26:08.515 EDT: RT IE 1, length 1, type 0 Jul 23 12:26:08.515 EDT: KA IE 3, length 2, yourseq 31, myseq 31 Jul 23 12:26:08.515 EDT: PVC IE 0x7 , length 0x6 , dlci 501, status 0x2 , bw 256000 Jul 23 12:26:08.515 EDT: PVC IE 0x7 , length 0x6 , dlci 508, status 0x2 , bw 64000 Jul 23 12:26:08.515 EDT: PVC IE 0x7 , length 0x6 , dlci 510, status 0x2 , bw 64000 Jul 23 12:26:18.496 EDT: Serial0/1(out): StEnq, myseq 32, yourseen 31, DTE up Jul 23 12:26:18.496 EDT: datagramstart = 0xF00218, datagramsize = 13 Jul 23 12:26:18.496 EDT: FR encap = 0xFCF10309 Jul 23 12:26:18.496 EDT: 00 75 01 01 01 03 02 20 1F Jul 23 12:26:18.496 EDT: Jul 23 12:26:18.512 EDT: Serial0/1(in): Status, myseq 32 Jul 23 12:26:18.512 EDT: RT IE 1, length 1, type 1 Jul 23 12:26:18.512 EDT: KA IE 3, length 2, yourseq 32, myseq 32 Jul 23 12:26:28.496 EDT: Serial0/1(out): StEnq, myseq 33, yourseen 32, DTE up Jul 23 12:26:28.496 EDT: datagramstart = 0xF00998, datagramsize = 13 Jul 23 12:26:28.496 EDT: FR encap = 0xFCF10309 Jul 23 12:26:28.496 EDT: 00 75 01 01 01 03 02 21 20 Jul 23 12:26:28.496 EDT: Jul 23 12:26:28.512 EDT: Serial0/1(in): Status, myseq 33 Jul 23 12:26:28.512 EDT: RT IE 1, length 1, type 1 Jul 23 12:26:28.512 EDT: KA IE 3, length 2, yourseq 33, myseq 33 Jul 23 12:26:38.497 EDT: Serial0/1(out): StEnq, myseq 34, yourseen 33, DTE up Jul 23 12:26:38.497 EDT: datagramstart = 0x1078778, datagramsize = 13 Jul 23 12:26:38.497 EDT: FR encap = 0xFCF10309 Jul 23 12:26:38.497 EDT: 00 75 01 01 01 03 02 22 21 - Original Message - From: Farhan Ahmed To: 'Jeff' ; Sent: Monday, July 23, 2001 9:24 AM Subject: RE: FrameRelay Over Utilized [7:13349] send me debug frame-relay lmi output -Original Message- From: Jeff [mailto:[EMAIL PROTECTED]] Sent: Monday, July 23, 2001 5:20 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13387t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
What is the load? It's easy to see with show interface serial. Theoretically, Frame Relay can deal with on over-utilized link, so I think your theory is probably right that it's a telco problem, but we need more data to help. Priscilla -Original Message- From: Jeff [mailto:[EMAIL PROTECTED]] Sent: Monday, July 23, 2001 5:20 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13406t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
Hi, CRC errors and Interface Resets would indicate a line or connection problem. Over utilisation would show up as BECN and FECN's probably having dropped packets on both the DLCI and the Serial Interfaces. The CRC errors and Interface resets are at the line level and not attibutable to a particular DLCI. Just a thought. Teunis Hobart, Tasmania Australia On Monday, July 23, 2001 at 09:37:25 AM, Farhan Ahmed wrote: send me debug frame-relay lmi output -Original Message- From: Jeff [mailto:[EMAIL PROTECTED]] Sent: Monday, July 23, 2001 5:20 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? -- www.tasmail.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13427t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FrameRelay Over Utilized [7:13349]
CSICO routers prioritize the LMI packets so they will drop data frames before LMI packets. This was told to us by TAC. Raul -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Monday, July 23, 2001 8:16 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Well, if it's really really overloaded, it can cause the circuit to drop if LMI packets aren't getting through to/from the FR switch. But it's got to be pretty chockers for that to happen. You could bung traffic shaping on it and throttle back the traffic, so the service isn't over-utilised, and see if you still get CRCs/errors/drops. If you do, you then have some extra evidence to beat your telco over the head with. Is dlci 501 the only PVC on that service? If not, do the other PVCs drop as well? If it's only one PVC affected, I'm not sure how over-utilising it could cause the PVC to drop out. JMcL -- Forwarded by Jenny Mcleod/NSO/CSDA on 24/07/2001 09:51 am --- Jeff @groupstudy.com on 23/07/2001 11:20:11 pm Please respond to Jeff Sent by: [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13455t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: FrameRelay Over Utilized [7:13349]
Raul is right, if you see lot of CRCs and interfaces resets(because of the CRCs), it has nothing to do with the utilization of the circuit. Just beat up your teleco, I have seen this thousands times, if you are sure your router and its card is okay, just let them test the circuit with T-bird and even rebuild the PVC from their side. Good Luck KY Raul F. Fernandez wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... CSICO routers prioritize the LMI packets so they will drop data frames before LMI packets. This was told to us by TAC. Raul -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Monday, July 23, 2001 8:16 PM To: [EMAIL PROTECTED] Subject: FrameRelay Over Utilized [7:13349] Well, if it's really really overloaded, it can cause the circuit to drop if LMI packets aren't getting through to/from the FR switch. But it's got to be pretty chockers for that to happen. You could bung traffic shaping on it and throttle back the traffic, so the service isn't over-utilised, and see if you still get CRCs/errors/drops. If you do, you then have some extra evidence to beat your telco over the head with. Is dlci 501 the only PVC on that service? If not, do the other PVCs drop as well? If it's only one PVC affected, I'm not sure how over-utilising it could cause the PVC to drop out. JMcL -- Forwarded by Jenny Mcleod/NSO/CSDA on 24/07/2001 09:51 am --- Jeff @groupstudy.com on 23/07/2001 11:20:11 pm Please respond to Jeff Sent by: [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: FrameRelay Over Utilized [7:13349] Hello, If I have a frame relay switch which is being over utilized will that cause the connection to drop. After looking in the log I see dlci 501 state changed to inactive, line protocol on interface s0/0.1 changed to down, dlci 501 active, this keeps going and going through out the log. The local telco insists that the circuit is overutilized and this is why the connection is dropping. I think it is a telco or csu problem. Also doing a show interface is showing 3000 crc errors and 500 interface resets for the past 3 days. Is there any way to tell for sure whether it is overutilization or a telco problem?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=13456t=13349 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
