Cisco Real Cache Error Detected
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Catalyst 6500 Series SwitchesTroubleshoot and AlertsTroubleshooting TechNotes Parity Errors Troubleshooting Guide Download Print Available Languages Download Options PDF (259.4 KB) View with Adobe Reader on a variety of devices Updated:Jul
Cisco Link-flap Error Detected
15, 2013 Document ID:116135 Document ID: 116135 Updated: Jul 15, 2013 Contributed by cisco loopback error detected Shawn Wargo, Cisco Engineering. Download PDF Print Feedback Related ProductsCisco Catalyst 6500 Series Switches ContentsIntroductionBackgroundSoft ErrorsHard ErrorsCommon Error parity error cisco MessagesProcessorRAMASICLatest AdvancementsProcessorRAMASICSoftwareMSFC IBC Reset6700 Series 'Single-Bit Parity Error' ResetRecommendationsSoft Errors (SEU)Environmental AuditLatest Firmware (Rommon)Thumb ScrewsHard Errors (Malfunction)Hardware (MTBF and EOL) AuditHardware DiagnosticsRelated Cisco Support Community DiscussionsIntroductionThis document describes soft and hard parity errors, explains
What Is Parity Error
common error messages, and recommends methods that help you avoid or minimize parity errors. Recent improvements in hardware and software design reduce parity problems as well. BackgroundWhat is a processor or memory parity error?Parity checking is the storage of an extra binary digit (bit) in order to represent the parity (odd or even) of a small amount of computer data (typically one byte) while that data is
Parity Error Fix
stored in memory. The parity value calculated from the stored data is then compared to the final parity value. If these two values differ, this indicates a data error, and at least one bit must have been changed due to data corruption.Within a computer system, electrical or magnetic interference from internal or external causes can cause a single bit of memory to spontaneously flip to the opposite state. This event makes the original data bits invalid and is known as a parity error.Such memory errors, if undetected, may have undetectable and inconsequential results or may cause permanent corruption of stored data or a machine crash.There are many causes of memory parity errors, which are classified as either soft parity errors or hard parity errors.Soft ErrorsMost parity errors are caused by electrostatic or magnetic-related environmental conditions.The majority of single-event errors in memory chips are caused by background radiation (such as neutrons from cosmic rays), electromagnetic interference (EMI), or electrostatic discharge (ESD). These events may randomly change the electrical state of one or more memory cells or may interfere with the circuitry used to read and write memory cells.Known as soft parity errors, these events are typically transient or random
7200 Series RoutersTroubleshoot and AlertsTroubleshooting TechNotes Processor Memory Parity Errors (PMPEs) Download Print Available Languages Download Options PDF (85.5 KB) View with system returned to rom by processor memory parity error at pc Adobe Reader on a variety of devices ePub (74.4 KB) View
Parity Error Detected In Vram
in various apps on iPhone, iPad, Android, Sony Reader, or Windows Phone Mobi (Kindle) (72.7 KB) View on high correctable ecc error rate detected cisco Kindle device or Kindle app on multiple devices Updated:May 25, 2016 Document ID:6345 ContentsIntroductionPrerequisitesRequirementsComponents UsedConventionsIdentify a Parity ErrorSoft Versus Hard Parity ErrorsIsolate the ProblemCisco 4500 and 4700 PlatformsRoute/Switch Processor http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/116135-trouble-6500-parity-00.html (RSP), Network Processing Engine (NPE), and Route Processor (RP) PlatformsParity Error in DRAM or SRAM (MEMD)Parity Error Pulled from SRAMVersatile Interface ProcessorRecommended ActionsInformation to Collect if You Open a TAC Service RequestRelated Information Introduction This document explains what causes parity errors on Cisco routers, and how to troubleshoot them. Prerequisites Requirements Cisco recommends that you have knowledge of how http://www.cisco.com/c/en/us/support/docs/routers/7200-series-routers/6345-crashes-pmpe.html to troubleshoot router crashes. Refer to Troubleshooting Router Crashes for more information. Components Used This document is not restricted to specific software and hardware versions. The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command. Conventions Refer to Cisco Technical Tips Conventions for more information on document conventions. Identify a Parity Error Memory parity errors occur in MultiChannel Interface Processor (MIPS)-based processor products such as: Cisco 4500/4700 Series Routers Cisco 7500 Series Routers (RSP1, RSP2, RSP4, RSP8, VIP2-10, VIP2-15, VIP2-20, VIP2-40, VIP2-50) Cisco 7000 Series Routers (RSP 7000) Cisco 7200 Series Routers (NPE-100, NPE-150, NPE-175, NPE-200, NPE-225, NPE-300) Cisco 12000 Series Internet Router Here are some messages, which are all related to the detection of bad parity somewhere in the system (the list is not exhaustive, but contains the most common messages): In the show version command output: Sy
Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the http://networkengineering.stackexchange.com/questions/3475/cat6k-parity-failure-and-long-sso-failover workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Network Engineering Questions http://www.dslreports.com/forum/r28808552-H-W-7200-VXR-RAM-A-sanity-check-please Tags Users Badges Unanswered Ask Question _ Network Engineering Stack Exchange is a question and answer site for network engineers. Join them; it only takes a minute: Sign up parity error Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Cat6K parity failure and long SSO failover up vote 3 down vote favorite From a Cat6K, RP crashinfo indicates parity error. Guidance seems to be to not do anything unless this happens more than once in cisco real cache 12-month period. At what point do you push Cisco for hardware or RAM replacement? Cache error detected! CPO_ECC (reg 26/0): 0x00000064 CPO_CACHERI (reg 27/0): 0x20000000 CP0_CAUSE (reg 13/0): 0x00000400 Real cache error detected. System will be halted. Error: Primary instr cache, fields: data, Actual physical addr 0x00000000, virtual address is imprecise. Imprecise Data Parity Error Imprecise Data Parity Error Interrupt exception, CPU signal 20, PC = 0x41AAE2DC Also took exceedingly long to failover from active SUP720-PFC3B to hot standby -- 18 minutes -- w/SSO. **From my research, it appears long failover time could be due to crashdumps, but I don't see coredumps configured. And without crashdumps, wouldn't root-cause be difficult if not impossible. Cisco's states the following for failover time. Without coredumps configured -- no exception type commands -- why would SSO take so long (18 min)? I was completely down during this period; even my HSRP VIPs that were active seemed to have stay alive on a dead SUP instead of moving to another Cat6K; need more log analysis to know fo sure.
IP isWhoisCalculatorTool PointsNewsNews tip?ForumsAll ForumsHot TopicsGalleryInfoHardwareAll FAQsSite FAQDSL FAQCable TechAboutcontactabout uscommunityISP FAQAdd ISPISP Ind. ForumsJoin Search similar:[memory] Do I need system-specific RAM for this Lenovo workstation?RAM question Forums → Equipment Support → Hardware By Brand → Cisco → [H/W] 7200 VXR RAM - A sanity check please! uniqs1348 Share « [HELP] Small ISP Set up • [Config] Basic Vlan question » MantaPremium Memberjoin:2003-11-04UK Manta Premium Member 2013-Nov-12 6:44 am [H/W] 7200 VXR RAM - A sanity check please!Hi all. I've just got my hands on a 7206 VXR with NPE-G1. Truth be told, I just wanted the NPE-G1 to upgrade an existing 7204VXR but it was cheaper and the spares don't go amiss! Trouble is that it only has 256MB RAM which is too small to run our existing IOS image. I bought a 3rd party 2x512MB RAM kit to bring it up to its max of 1GB but it just throws ECC errors. "Cache error detected!" "Real cache error detected. System will be halted" etc. This happens as soon as it's booted the IOS image. The seller tells me that they sell this particular part regularly and have no known compatibility issues. Given that it appears to work absolutely fine (boot and seems to run but no actual traffic flowing) with the existing 2x128MB set of SimpleTech RAM would you think this is just a compatibility issue and a set of Micron Sodimms may work or is there something wrong with the NPE-G1?[edit] Should have mentioned that I've already tried getting the Sodimms swapped out believing they were just faulty. [/edit]I've tried both the IOS that came with it (12.4-19) and our own 12.4-24T6 in case it was a version issue.The chips are marked:MK9VDDT51264Mx72 ECC UNB DDR Sodimm512MB 200pin PC2100and feature five Hynix chips on the back, five on the front and a small ICS chip near the edge connector.Many thanks,Gareth · actions · 2013-Nov-12 6:44 am · Da Geek Kidjoin:2003-10-11::1kudos:1 Da Geek Kid Member 2013-Nov-12 11:31 pm you need to make sure whatever you bought they guarantee it's matching Cisco's MEM-NPE-G1-1GB. · actions · 2013-Nov-12 11:31 pm &mi