Please see bug details. Buy or Renew. 00 Core 0: CPU utilization for five seconds:. But I canSwitching High CPU troubleshooting on cisco 3850; Options. Stack Manager and High Availability Commands. Switch# show processes cpu sorted. CAT3K_CAA-UNIVERSALK9 BUNDLE. BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 1. 42 1088 fed 6258 3292482 92102444 4593 23. Cisco 3850 CPU usage FED / PDSEvent My Cisco 3850 stack is having some higher than normal CPU usage on the FED process and the PDSEvent Process. These switches seem to be working fine with no CPU issues so far but as I said before they all have bugs. 0 Core 0: CPU utilization for five seconds: 45%; one minute: 44%; five minutes: 44% Core 1: CPU utilization for five seconds: 38%; one minute: 44%; five minutes: 45% The problem here I think is something that can't be expressed int this document because I'm seeing this high cpu issue happen on multiple 3850s with multiple images and to multiple queues. The current version of IOS is 03. Conditions: The is seen in 12. Step 1: Identify the Process that Consumes CPU Cycles Step 2: Determine the CPU Queue that Causes the High CPU Usage Condition Step 3: Dump the Packet Sent to the CPU Step 4: Use FED Tracing Sample Embedded Event Manager (EEM) Script for the Cisco Catalyst 3850 Series Switch Cisco IOS-XE 16. Does anyone here. I noticed a lot of these devices are Apple iOS Devices that are spamming it. High CPU Usage on 3850 Go to solution. To sort for high activity usage, use show process cpu sorted command. High CPU的问题一般分进程高和中断高两种。中断高常由于实时的流量造成，要根据网络的实际情况具体分析，原因有很多种。进程高，不同的进程也有不同的root cause。 在比较常见的几种占用CPU资源进程中，有一种叫 IP Input。Core 2: CPU utilization for five seconds: 93%; one minute: 96%; five minutes: 95%. There were heaps of logs like below: 4801: Alternate Pool: None Free: 0 Cause: No Alternate pool. 1 syslog msg "high CPU detected" action 0. 通过设备 showprocess cpu sorted detai led 可以看到CPU四个核基本都达到90%以上，其中占用最多的进程为fed。. sh processes memory platform sorted location switch 1 rp0 (Page 1 only) The switch/stack is running on 16. Post the complete output to the following commands: sh platform software status control-processor brief. 6 28. the 'iosd' and 'fed' processes are high, which usually means high interrupts. Current OS version: Gibraltar - 16. So, we built the pool according to these guidelines:Email Alerts. This traffic ends up on queue 23 . Since two weeks the core switch has an utilization of 100% (every ten minutes). The fix was given based on trace decode. 0 Core 0: CPU utilization for five seconds: 85%; one minute: 94%; five minutes: 92% Core 1: CPU utilization for five seconds: 100%; one minute: 79%; five minutes: 56% CSCuo14511 fed and stack-mgr causing High CPU on 3850 . x-Versionen (auch Polaris genannt) ausgeführt werden, Abhilfe schaffen. Command Reference, Cisco IOS XE Gibraltar 16. These are all different software techniques, with different performance in terms of the maximum number of packets that can be routed per second. 6. This script emails an alert when CPU utilization goes above 50 percent. 我是通过ping 3850设备发现延迟发现这个问题的（延迟为1至20ms不等），通常设备针对ping的流量优先级最低，如果设备CPU繁忙则会出现ping高延迟的问题。. le compartimos algunos links que le ayudarán a familiarizarse con la Comunidad. 21 does not. The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. The symptom is seen on ports having FO and FX SFP modules. show processes cpu | ex 0. HI everybody. This is just to rule out any. There is no debugging enabled at this time. 9300-Switch#show platform hardware fed switch active qos. x (Catalyst 3850 Switches) Chapter Title. 71 29. txt. EN US. 06 to 16. NPM has been reporting high memory utilization, which is attributed to the lsmpi_io reading. xxxx. X then this is due to a well-known bug: CSCuo14511. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process. Cisco bug ID CSCup49704€- 3850 FED Crash - Waits for SPI channelsWe have a switch stack with 2 x WS-C3850-48T that is hitting high CPU usage. Run show platform software status control-processor brief in order to check the. 0". Cisco IOS XE Release 3S (Catalyst 3850 Switches) Platform_independent configuration information:To enable debugging of packets during high CPU utilization, for an active switch, use the debug platform software fed switch active punt packet-capture start command in privileged EXEC mode. Download Download Options. 1-If we stop polling or disable all the traps,will the SNMP enginer process will release the memory its holding currently. 7. I have a couple of 3850/3650 that are dropping traffic punted to the CPU. We were able to do the upgrades with a single reboot. 44 23. This will be the second beta rebuild on 16. Supposedly I should have been a flood of multicast . 3. CSCvr07162. Core 0: CPU utilization for five seconds: 96%; one minute: 96%; five minutes: 96%. Investigate Why FED is Punting Packets to the. The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. Cisco IOS-XE 16 — 概览; 排除 Catalyst 3850 系列交换机高 CPU 使用率问题; Cisco IOS®和IOS®-XE的嵌入式 数 据包捕获配置示例; 在运行IOS-XE 16. process cpu threshold type total rising 80 interval 5! event manager applet High_CPU authorization bypass event syslog occurs 1 pattern "CPURISINGTHRESHOLD" action 1. action 3. txt"We had the same issue on many stacks and ended up upgrading the IOS to at least Version 03. A value for exit-val ensures that the script does not run in an endless loop. 80. 06. event snmp oid 1. CSCup49704. High CPU WS-C3850-48T. Use the console to connect to the. Page of 54 Go 39. Switch_1# sh processes cpu platform sorted location switch 1 R0 | in fman. 0 Core 0: CPU utilization for five seconds: 90%; one minute: 89%; five minutes: 84% Core 1: CPU utilization for five. 3. Background One or more cores of the CPU might exhibit high usage due to one of these processes/threads: FED/fed-ots-main FED/Punject Rx FED/XCVR FED/XCVRPoll Step 1. Buy or Renew. 5 Helpful. Here is the part of the "show process cpu sorted". 35 49. I have researched and cannot figure out what this process is for. 07 26. 03% Hulc LED Process. NOTE: Stack in Bundle Mode. Please find the below output and suggest me the solution; continouesly we are monitoring and still it is same. 11 0. It is important to monitor these queues in order to discover which. In that file, there is another file called "sw-core_1_RP_0_fed_17777_20190923-010852-Kras. Additional Reading. EN US. Usage Guidelines. If there is SFP port in use, it might be a little bit high. 如果最近没有对网络进行任何更改，则安全问题尤其. 79% Replenish OOB = 16. 39 5. 5. The nagios reports the following message: "cisco_load | CPU: 99 99 99 : 99 > 98". Image 13 shows the updated I/O graph for an interface that experienced output drops. 3. System restarted at 11:41:09 KST Mon Feb 15 2016. 0 cli show processes cpu sort >> bootflash:high-cpu. xreleases). I completely understand the 24x7 operation but in some cases like th. This release note gives an overview of the features for the Cisco IOS XE Denali 16. 1) Collect the below output periodically and check whether the "Size" counter increases over time for "platform_mgr" process. 0 Core 0: CPU utilization for five seconds: 49%; one minute: 76%; five minutes: 75%. WS-C3850-24XS-E. Cisco IOS XE 3. As the process is using 18. ST3-Stack1-3850#sho proc cpu sort | e 0. Additionally, the. An example is a cisco 4500X switch with a sample of the configs shown below. here is the output: DC1#show process cpu | ex 0. 0 Core 0: CPU utilization for five seconds: 98%; one minute: 92%; five. 1. E cat3k_caa-universalk9 INSTALL. Any recommendation for new stable IOS please. To avoid high CPU usage, do the following:. Are there any pollers out there than can show the correct memory. Go to Cisco r/Cisco. 4) Prior to CSCuu14019, interfaces won't display "output drop" counters. 2. I was struggling with high CPU utilization problems happening on the distribution switch. Symptom: A Catalyst 9200 switch may crash when executing "show platform hardware fed switch active fwd-asic resource tcam utilization 1". 06. 41 49. 11 0 IP Host Track Proce #show processes cpu detailed process fed sort | ex 0. Output from top. Either one of the options will not be good because Cisco has been been unable to fix a plethora of memory and CPU issues affecting IOS-XE. 109. Sw Ver. I read a lot of threads, but most of them are regarding the fed or stack-mgr. . According to the switch logs, after searching for related processes, we can find that the occupancy rate of FED and stack-mgr processes is high An E-series Catalyst 4500 switch configured with RSPAN might display high CPU utilization during the host learning process. - The CPU load has been increased in big steps of about 20% in about two months. Notice that you must enable debug pds pktbuf-last before you use the command. Cisco IOS uses multiple techniques for L3 routing a packet in software: (1) process switching (2) fast switching and (3) CEF switching. 手順4:FEDトレースの使用. Chinese; EN US; French; Japanese;. #show process cpu detail process fed sorted Core 0: CPU utilization for five seconds: 67%; one minute: 61%; five minutes: 63% Core 1: CPU utilization for five seconds: 90%; one minute: 63%; five minutes: 68% Core 2: CPU utilization for five seconds: 44%; one minute: 77%; five minutes: 74% Core 3: CPU utilization for five seconds: 99%; one. Core 0: CPU utilization for five seconds: 7%; one minute: 11%; five minutes: 10% 283 I 574800 3225649 0 4. 3. IPv6SnoopingCommand (StartingfromCiscoIOSXEDenali16. WS-C3850-24XS-S. You can use following procedures to find out if your Catalyst switch seeing high CPU utilization is affected by this problem, and implement respective solutions. 06. 通常，CPU 使用率较高是由安全问题（例如网络中运行的蠕虫或病毒）引起的。. Note: Running a debug over a production network may overwhelm the router. In the results of the show pds tag all command, notice a handle, 7296672, is reported next to the Punt Rx Proto Snoop. Peaks are cyclic and take place one a minute during 15 seconds more or less, I have checked processes: 111111111111111 6666600000000000000066666. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed;. 3850-48-01#show processes memory. show platform cpu packet. Peaks are cyclic and take place one a minute during 15 seconds more or less, I have checked processes: 111111111111111 6666600000000000000066666 2111113333366. There are two probable causes for high CPU utilization occuring in relation to Simple Network Management Protocol (SNMP): Large route and/or ARP tables being polled by the NMS station. Home; Documents; Troubleshooting Cisco Catalyst 3850 and 3650 Series. . Processor Pool Total: 886321088 Used: 335837328 Free: 550483760. 33%. This switch member has crashed TWICE in the same month. 07-17-2019 12:32 AM. Solved: Hello, I need help on understanding the problem we are facing with one of our 3850 stack. See the attached process output. 2(53)SE. Options. This is commonly seen when the CPU is interrupted due to ARP packets. 02. . 33% 0 SNMP ENGINEI have VSS running on 2 cisco WS-C4506-E. . 0 cli command "show processes cpu detailed process fed sort | append flash:HG-CPUlog. The first command output displays the switch system ID and its priority (for LACP). Step 1. Options. Is it the version 16. Eg: switch# show platform software process list switch active R0 sort memory. 01 26. Last thing: move to a newer code. 04E that is reporting high CPU caused by " EPC WS Pkt Send p" I have been trying to figure out what could be causing the Embedded Packet Capture to cause high CPU but am not having any luck. 0 Helpful. Hi all, I have a stack of 4 Catalyst 3850-24X working as a distribution switch, lying in between a Nexus 7K core switch and 34 C3850 access switches/stacks. 02. 72 1. 4802: -Process= "IOSD ipc task", ipl= 0, pid= 74. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5717 251676 36349739 1470 27. X的Catalyst交换机上配置Punt/Inject FED数据包捕获 ; 技术支持和文档 - Cisco Systems wrote: PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5881 3303778 46124849 472 49. I notice that the FED on one of my cisco 3850's is putting this traffic to the CP. 27777 26990 0% 0% 0% S 314179584 fman_rp. 00 Core 0: CPU utilization for five seconds: 80%; one minute: 79%; five minutes: 79% Core 1: CPU utilization for five. MAC address Hw Ver. Type of process; can be either IOS or POSIX. 0 Core 0: CPU utilization for five seconds: 53%; one minute: 39%; five minutes: 41% Core 1: CPU utilization for five seconds:. 3SE, support was added for the Cisco Catalyst 3650 Series Switches and Cisco Catalyst 3850 Series Switches. " Reference: Catalyst 3850: Troubleshooting Output drops. 7 recently. for one particular 3850 stack, it shows 70%, whereas the switch CLI shows; #sh process cpu. xE. x. Symptom: When abruptly reloading (eg: manual power cycle) or adding/removing a switch member from a 3850 stack, other switches in the stack may begin crashing on the FED (forwarding engine driver) due to a timeout on the SPI, which is the internal message-passing system that lets services communicate with one. Dumps all the packets sent to the different CPU queues and possible drops. Also, check the troubleshooting procedure outlined in the link below: I realise cpu core0 of my cisco 3850 switch stack of 4 switches is having high cpu utilization of 100% constantly when i do a "show process cpu | ex 0. 309 UTC: %ACL_ERRMSG-4-UNLOADED: 1 fed: Input IPv4 L3 ACL on interface Vl108 for label. show platform health. The CPU usage is primarly used by the following processes. Please provide the output to the command "sh processor memory platform sorted location switch 2 r0". It is run as a software process within the kernel. I have already found out that the high core usage is only happening on switch 1. 07. To find CPU usage due to the subprocesses and tasks operating under a specific process, use the show process cpu detailed command. Schritt 2: Bestimmen der CPU-Warteschlange, die die hohe CPU-Auslastung verursacht. Ingress protocol control packet which intercepted by DP sent to the CP to process it. 0 info type routername action 2. BRM_HQ_CSW_01#sh proc cpu sort. This is commonly seen when the CPU is interrupted due to ARP packets. The other cpu core are fine at below 20% utilization. The use of CLI commands such as show tech-support over SSH can cause very. High CPU due “Hulc LED” process is an expected behavior. show platform software fed switch active cpu-interface queue retrieved dropped invalid hol-block-----High rate app 994752082 994752082 0 0. By default, priority and control traffic are separated into Q0 however Q0 is not set as priority queue. CatOS-Issue the show proc cpu command to display CPU utilization information. Fed is by far the highest consumer with Iosd coming in 2nd. primarily due to interrupts, on the new Cisco IOS®-XE platform. I noticed that sh run, wr and some other sh commands are taking forever to execute. Has anyone seen this and solved it without an upgrade. Mostly, if you set up the SNMP correctly the IOS will "SLOWLY" release the CPU/Memory. Similar to Cisco routers, switches use the show processes cpu command in order to show CPU utilization to identify the causes of high CPU utilization. • IOSd runs as process on kernel-> linux_iosd-image • Not all processes run on all switches. 6, haven't seen any related bugs for this version. Runtime(us) CPU time that the process has used (in microseconds). 1. 28 MB) View with Adobe Reader on a variety of devicesOptions. event manager applet highcpu. Switch_1# sh processes cpu platform sorted location switch 1 R0 | in fman. 2) For the high cpu, the person working on my case did a bunch of that trace stuff and other than saying it was coming from another switch, there doesn't seem to be a specific cause. 6 we are facing the high CPU usage. 通过设备 showprocess cpu sorted detai led 可以看到CPU四个核基本都达到90%以上，其中占用最多的进程为fed。. However, due to the differences in architecture and forwarding mechanisms between. CPU is hitting more than 90%. 2. I performed the platform packet capture and it's indeed a lot of ARP Requests being spammed. High end routers (7000, 7500 series) have their buffers in main dynamic random-access memory (DRAM),. E. CPU Q Id : 23 CPU Q Name : CPU_Q. PDF - Complete Book (9. 6. Troubleshoot High CPU Usage in Catalyst Switch Platforms Running Cisco IOS-XE 16. As stated earlier, I plan to upgrade the software to 3. The Cisco 3850 reboot after a couple of hours in operations. 79% Replenish OOB = 16. fed —The Forwarding Engine Driver process. 4, targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. 78 9. Enterprise Switching Business Unit is happy to announce availability of Beta release of 16. 0 Core 0: CPU utilization for five seconds: 16%; one minute: 17%; five minutes: 17% Core 1: CPU utilization for five seconds: 96%; one minute: 97%; five minutes: 97% Core 2: CPU utilization for five seconds: 100%; one minute: 99%; five minutes: 74%As you'll notice, the high cpu value on the core doesn't always show up on the same core. 59 600 25 24000 4. 20, RELEASE SOFTWARE (P) 3850_SW uptime is 14 weeks, 23 hours, 27 minutes. 73 26. so that you can only see the processes that actually use CPU cycles. CSCuq48800. 41 49. I have found others discussion with high CPU process but there is no clear explanation for PunjectRx. FED (Forwarding Engine Driver): Cisco Catalyst 3850 Series 스위치의 핵심으로서 모든 하드웨어 프로그래밍/포워딩을 담당합니다. xxxx. 3850-2#show processes cpu detailed process iosd sort | ex 0. 0. 6. In some network deployments, a busy CPU is normal. C3850# show processes cpu detailed process fed sorted | ex 0. 0 Helpful. Since you have tried all the option we have now the last resort is Open a TAC case with bug id, so they can able to suggest to best. Switch # redundancy force-switchover System configuration has been modified. Core 1: CPU utilization for five seconds: 29%; one minute: 63%; five minutes: 58%El switch Catalyst de Cisco serie 3850 tiene varias colas que atienden a diferentes tipos de paquetes (la FED mantiene 32 colas de CPU RX, que son colas que van directamente a la CPU). Book Title. Stack Adapter (if applicable) - Reseat the stack adapter at least two times in order to see if it fixes the problem. x or Later Releases Related Information IntroductionStep 1: Monitor the Used and Committed memory, you have to see an increase on these values, a leak is identified when the memory increases but it doesn't decrease over time, if memory usage get back to normal, then you can discard a memory leak. 3. Number of times that the process has been invoked. #show process cpu detail process fed sorted Core 0: CPU utilization for five seconds: 67%; one minute: 61%; five minutes: 63% Core 1: CPU utilization for five. Our management systems is only reading the output on "sh process cpu platform" which is very different from "sh process cpu". Although the RSPAN VLAN does not learn any MAC addresses, a copy of the packet with unknown source MAC is still sent to and dropped at the CPU. 54 has issue while . 0 Core 0: CPU utilization for five seconds: 34%; one minute: 35%; five minutes: 41% Core 1: CPU utilization for five seconds: 79%; one minute: 81%; five minutes: 62% Core 2: CPU. 00 Core 0: CPU utilization for five seconds: 94%; one minute: 92%; five minutes: 90%The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. 2SE is reporting what seems like excessively high rates of CPU utilitization. So, most likely a hardware issue. 本文档说明 Cisco Catalyst 3750 系列交换机上的 CPU 使用率过高的原因。与 Cisco 路由器类似，交换机使用 show processes cpu 命令来显示 CPU 使用率以识别 CPU 使用率过高的原因。但是，由于 Cisco 路由器和交换机之间在体系结构和转发机制上存在差异，show processes cpu 命令的标准输出有很大的不同。process cpu threshold type total rising 20 interval 5 switch 1. , this is the output for the first switch, on the others the cpu utilization shows a s 8 to 14 %. 3. If the stack is running 3. Invoked . 1 Catalyst 3850 Series Switch High CPU Usage Troubleshoot Document ID: Contributed by Aninda Chatterjee and Yogesh Ramdoss, Cisco TAC Engineers. m. 10187 2009764 10763907 145 1. 4, targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. ===== c3850# sh processes cpu switch 2 det process cpumemd sorted Core 0: CPU utilization for five seconds: 12%; one minute: 7%; five minutes: 6%Einleitung. 26 50. show controllers cpu-interface の出力結果のうちicmpキューの. Conditions:. Am currently looking into high cpu figures on one of our 3850 switches the model is WS-C3850-24P running 03. Hello don't know why stacked 3850 have trouble with high cpu Core 0: CPU utilization for five seconds: 53%; one minute: 44%; five minutes: 44% Core 1: CPU utilization for five seconds: 45%; one minute: 46%; five minutes: 46% Core 2: CPU utilization Good Morning All, Am currently looking into high cpu figures on one of our 3850 switches the model is WS-C3850-24P running 03. Darüber hinaus werden in diesem Dokument verschiedene neue. From what I can see, the 'iosd' and 'fed' processes are high, which usually means high interrupts. In IOS command: 3750E#show proc cpu. 65% 61. ' As the script collects data, it increases CPU utilization. SE. Model Number : WS-C3850-48P. Buy or Renew. Last reload reason: Critical process platform_mgr fault on rp_0_0 (rc=134) Also i have checked crashinfo file and i observed some logs . 99 MB). I'm having issues with switches in my network , high cpu bounces from code to core , Switch-xxx#sh processes cpu | ex 0. I read a lot of threads, but most of them are regarding the fed or stack-mgr. Please see details below. 27777 26990 0% 0% 0% S 314179584 fman_rp. ST3-Stack1-3850#sho proc cpu sort | e 0. Traffic that exceeds the default 600 packet per second rate in the CoPP policy is dropped before it reaches the CPU. no issue getting IP address. It is installed on VMware with the minimum requirements. CPU usage due to Hulc LED process. - Update both Power Supplies and RPS. 2 (40)SE C3750-ADVIPSERVICESK. このドキュメントでは、16. All other devices have typical utilization <1% but the EBNs and FRs are running between 5-6% constantly. Unless otherwise noted, the terms switch and device refer to a standalone switch and to a switch stack. Note: It is necessary to define 'exit-val. This is the output from the command show processes cpu sorted. Most of the time high CPU utilization is a software issue and not so much hardware but you never know. Thanks PL. . Book Title. 93 26. 04. MAC address Hw Ver. 02 1088 fed Hi all, I have a stack of 4 Catalyst 3850-24X working as a distribution switch, lying in between a Nexus 7K core switch and 34 C3850 access switches/stacks. 3 cli command "show process cpu sorted | append nvram:. I have looked a the ports and the reliability is 255/255, txload and rxload are very low. 93 0 stack-mgr 5846 3930459 20739688 103 24. If you reboot the switch before. 03aSwitching . Externally found moderate (Sev3) bug: C-Closed . 12. CPU utilization for five seconds: 98% /3%; one minute: 96%; five minutes: 98%. The memory utilization for switch 2 is abnormally high (ideally <50%). 9. WhenOnly TAC will know how to decipher what is causing the process "linux_iosd-imag" to be chomping up so much memory. Release Notes for Cisco Catalyst 3850 Series Switches, Cisco IOS XE Denali 16. switch#sh proc cpu detailed process fed sorted | ex 0. x 20/Aug/2020. 通常，CPU 使用率较高是由安全问题（例如网络中运行的蠕虫或病毒）引起的。.