Investigate Why FED is Punting Packets to the. The show process cpu command is used in order to display the current process state inside of the IOSd daemon. 4. We are looking for early feedback from customers before 16. 02. This document describes causes of high CPU utilization on the Cisco Catalyst 3750 Series Switches. 32% 0. 1 syslog msg "high CPU detected" action 0. Core 1: CPU utilization for five seconds: 18%; one minute: 24%; five minutes: 28%We have one Catalyat 3850 switch with High CPU utilization. IOSd resides at the control. johnlloyd_13. For the actual problem - it looks like you got through step 2 in the doc you linked, identifying the CPU queue that's seeing the most traffic. 6 28. Symptom: Hulc LED Process uses 15-30% CPU on Catalyst 3560X/3750X platforms. type . 2 27. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5715 4011600 27402184 4878 25. 7? For testing, we have upgraded a couple of switches to 16. 4, targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. 42 1088 fed 6258 3292482 92102444 4593 23. The new boot loader can support booting both Cisco IOS XE 3. This is causing processes like SNMP and SSH to freeze up and not work properly. 0E IOS, and they are experiencing high CPU peak. 03. Model Number : WS-C3850-48P. xE. 04SE. Image 13 shows the updated I/O graph for an interface that experienced output drops. CSCuo14511 fed and stack-mgr causing High CPU on 3850 . 5 cli command "show platform punt statistics port-asic 0 cpuq -1 direction rx | append nvram:. Traffic that exceeds the default 600 packet per second rate in the CoPP policy is dropped before it reaches the CPU. 5b without a noticeable change in CPU levels. The current version of IOS is 03. primarily due to interrupts, on the new Cisco IOS®-XE platform. conf" Last reload reason: Critical process fed fault on fp_0_0 (rc=139)Go to Cisco r/Cisco. 6% of my total CPU power, I. 0 Core 0: CPU utilization for five. Full screen Standard. 33 4. ' As the script collects data, it increases CPU utilization. If the stack is running 3. The Cisco Catalyst 3850 Series Switch has a number of queues that cater to di erent types of. Step 3: Dump the Packet Sent to the CPU. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY. and are only doing packet forwarding you could consider changing to a layer 3 switch, like a Cisco 3850. 99 MB). For example, sometimes you can have a 3750 CPU problem caused by using the "wrong" SDM template. 0 cli show processes cpu sort >> bootflash:high-cpu. process cpu threshold type total rising 80 interval 5! event manager applet High_CPU authorization bypass event syslog occurs 1 pattern "CPURISINGTHRESHOLD" action 1. EEM-Beispielskript (Embedded Event Manager) für Cisco Catalyst Switches der Serie 3850. Polling certain MIBs. Upgrading Cisco C3850 Switches to Solves the Problem of High CPU Occupancy According to our customer's feedback, the CPU usage rate of a Cisco. 34 23. 3 0 fed. 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. 2. If you see high CPU utilization during the IPX Input process, verify the following: IPX fast-switching is disabled. x or Later Releases Related Information IntroductionStep 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. SSH process spike occurs majorly if large amount of data being sent on the ssh session. This traffic ends up on queue 23 . 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. Unfortunately, I don't have the necessary tools to read the contents of this file but I suspect the cause of the crash to be CSCvb91970. 1. I have been trying to figure out 3850 / 3650 CPU queue traffic with not much success. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Type escape sequence to abort. 3. Description. The root cause of the issue is with any ICMPv6 or DHCPv6 Solicitation packet and when dhcp snooping is configured on the switch. CPU utilization for five seconds: 98% /3%; one minute: 96%; five minutes: 98%. 54 has issue while . Rising star. Look at the “logfile: Cisco IOS” report prior to a reset is typically a good place to start. 检查是否存在可能的安全问题。. 3. Cisco 3850 Reporting lsmpi_io. What firmware is the stack running on and what is the uptime (post the complete version to the command "sh version"). The default queue structure is unified across all Cisco Catalyst 9000 family switches for all ports, regardless of speed, and is based on a two-queue model. This document is for networking professionals who are responsible for the design, implementation, or administration of a network that includes a standalone Cisco Catalyst 3850 Series or a Cisco Catalyst 3850 Series Switch-stack, referred to as. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 6032 889844 24282930 618 25. In that file, there is another file called "sw-core_1_RP_0_fed_17777_20190923-010852-Kras. 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. 0 Core 0: CPU utilization for five seconds: 98%; one minute: 90%; five minutes: 91% Core 1: CPU utilization for five seconds: 89%; one minute: 56%; five minutes: 73% Core 2: CPU utilization for five seconds: 97%; one minute: 97%; five. CPU usage can be monitored on a per. Is that's not possible, then traffic is punted to the Control Plane/CPU so it can be processed . 3 that is constantly showing high memory utilization. 20 has the issue while . 42 1088 fed 6258 3292482 92102444 4593 23. 步骤 2：确定导致高CPU使用方法情况的CPU队列 Cisco Catalyst 3850 Series Switch有迎合不同种类的信息包的一定数量的队列(联邦机关维护32个RX CPU队列，是队列去直接地CPU)。监控这些队列为了发现是重要的哪些信息包被踢对CPU，并且哪些由IOSd处理。12-16-2014 01:13 AM - edited 03-07-2019 09:54 PM. 10#sh proc cpu so. xxxx. ST3-Stack1-3850#sho proc cpu sort | e 0. 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. for one particular 3850 stack, it shows 70%, whereas the switch CLI shows; #sh process cpu sorted. Reduce the Interval to 1ms and Reset the Graph. Switch # redundancy force-switchover System configuration has been modified. 1. 54 0 stack-mgr For temparary remdiation, if you have maintenance window, reboot teh device and test. Conditions: The issue was not reproduced. Additional Reading. 0 Core 0: CPU utilization for five seconds: 49%; one minute: 76%; five minutes: 75%. x 27/Jan/2021; Troubleshoot PoE Imax Errors on Catalyst 3650/3850 Switches. The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. 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%We have 4 Cisco 3860 (stack) configured as a collapsed core switch (it is Core and Distribution switch). 0". system crash on execute "fed TCAM utilization". Book Title. Usage Guidelines. Apr 04, 2014 Contents Introduction Background Information Case Study: Address Resolution Protocol (ARP) Interrupts Step 1: Identify the Process that Consumes CPU Cycles Step 2: Determine. For temparary remdiation, if you have maintenance window, reboot teh device and test. . I have been investigating some high CPU usage on our 3850s. 升级. sh processes memory platform sorted location switch 1 rp0 (Page 1 only) The switch/stack is running on 16. Our 3850 stack is experiencing spikes on the CPU due to the eicored process. Kindly refer to Cisco 3850: IOS-XE/Firmware Upgrade (Install Mode). 4802: -Process= "IOSD ipc task", ipl= 0, pid= 74. 95% 78. 6. 0 5 0 5 0 5 0 5 0 5 0 5 0 CPU% per hour (last 72 hours) * = maximum CPU% # = average CPU% show processes cpu detailed process iosd sorted | ex 0. 7 or Earlier Might Crash Unexpectedly - Software Upgrade. hap_sup_reset: 재설정 이유:재설정/다시 로드가 [stack-manager]에 의해 요청되었습니다. how i can minimze the CPU Utilziation for this process. 5, however the cpu will reach to 100% occasionally I have configured the event already, event manager applet highcpu event syslog pattern ". But I canSwitching High CPU troubleshooting on cisco 3850; Options. The QoS Monitoring feature describes the Quality of Service (QoS) through sample configuration examples. This will be the second beta rebuild on 16. Number of times that the process has been invoked. Layer 2 and Layer 3 Configuration Guide, Cisco IOS XE Everest 16. Monitor High CPU via SNMP OID. Unicast mac addresses: 6364/6364 1056/1056Etapa 1: Identificar o processo que consome ciclos da CPU. Check if somebody is logged into and executing commands through an SSH session. #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. x and 16. 01-13-2014 08:25 AM - edited 03-07-2019 05:32 PM. I analysis "show proc cpu" result, the root cause of high CPU utilization is "FED" process. Symptoms of high CPU (SR 680000139) have also been seen to trigger this type of issue. 08-19-2021 02:11 PM. CSCup49704. DC1#show process cpu detail process fed sorted | ex 0. 01 26. type . 升级. Importers, exporters, distributors and users are responsible forCisco Catalyst 2960-X Series Switches, Cisco Catalyst 2900XL Software. 一旦您发现 CPU 使用率高的症状中列出的任何症状，请执行以下操作：. 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. From what I can see, the 'iosd' and 'fed' processes are high, which usually means high interrupts. Current state of the process. 49% 77. However, due to the differences in architecture and forwarding mechanisms between. My process cpu goes high and when i check IOSD prcoess taking majority of CPU. 07. 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. C3650#show processes cpu detailed process fed sorted | ex 0. 29 44. Release Notes for Cisco Catalyst 3850 Series Switches, Cisco IOS XE Everest 16. 3850-2#show processes cpu detailed process fed sorted | ex 0. 506 Central: %IOSXE-5-PLATFORM: 2 process fed: Logging is not supported for Client/Group ACL Feb 22 07:06:56. See the attached process output. System restarted at 11:41:09 KST Mon Feb 15 2016. I have two switches in stack, which have high CPU processing, I see that the fed process is consuming too many CPU resources. 2 cli command "enable" action 0. Step 2: Determine the CPU Queue that Causes the High CPU Usage Condition The Cisco Catalyst 3850 Series Switch has a number of queues that cater to different. 07-08-2015 12:38 PM - edited 03-08-2019 12:53 AM. 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. Mem: 7508840k total, 6830632k used, 678208k free, 67344k buffers. The following is a log entry example for. Swap: 5618316k total, 5461020k used, 157296k free,. 1. Its definitly some kind of bug, disable dhcp snooping is our solution, but that wasnt the question. 78 9. If the IP input process uses unusually high CPU resources, the router is process-switching a lot of IP traffic. 33 4. To find CPU usage due to the subprocesses and tasks operating under a specific process, use the show process cpu detailed command. CSCvr07162. What IOS version are you using? If, though, you have a high software forwarding CPU usage, that needs investigation. Eg. 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. 4800: Pool: Processor Free: 1598872 Cause: Memory fragmentation. 71. I have been working with TAC for almost a year on this issue. Beginner. show processes cpu platform sorted location switch 1 r0. Does anyone here. 03. 00 Core 0: CPU utilization for five seconds: 80%; one minute: 79%; five minutes: 79% Core 1: CPU utilization for five. Task sequence number. Quite a few IOSs in the 3750s, will use a lot of CPU for Hulc LED process, but that normally doesn't impact performance. 78 25. 03. 06. Notice that you must enable debug pds pktbuf-last before you use the command. We have a cisco WS-C3750X-24 that sometimes shows high cpu. Linux will schedule a process (remember IOSd is a single process from the Linux perspective) on a CPU core based on a number of different factors, including utilization of the other cores at any given time. Symptom: Catalyst 3650/3850 switches (stack or standalone) may report following symptoms: - CPU usage of Core 0 is in the range of 90 - 100% - "fed" and its subprocess "fed-ots-main" are high even with not much traffic sent to the cpu - Check the cpu queues by command "show platform punt statistics port-asic 0 cpuq -1 direction rx", forus queue. 3 at Power. txt action 4. Hi fellow network ninjas, We have c3850 (WS-C3850-24-T) running with ip services license and version 03. Last thing: move to a newer code. 4. 109. 00 4. 手順4:FEDトレースの使用. dhcp acks back to the client can get stuck in switch and cause high cpu condition. This is just to rule out any. 97 26. Beginner. x releases. 663: %PMAN-3-PROCHOLDDOWN: F0/0: pman: The process fed has been helddown (rc 139) Chassis 1 reloading, reason - Reload command. 0 Helpful. 0. 93% 17. IStep 2: Determine the CPU Queue that Causes the High CPU Usage Condition. 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. 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. NOTE: Stack in Bundle Mode. action 3. 6. A different VLAN-ID can be set in the switch for the AVB VLAN using cli avb vlan <vlan-id>. 要验证设备的CPU或内存使用率级别是否指示可能存在问题，请使用输出解释程序工具。. we had an alert through for a sustained period of high cpu usage, upon investigation we observed the following. Hello Leo, I thought so at first, but this is not the case since before the installation of the 3850 there was a 3750X that has been running for the last 3 years and there have never been problems with the cabling. 18694 17000. 72 1. The stack is currently supporting 4 switches. 91% 84. WS-C3850-24XS-E. For Catalyst 4500/4000 series switches that run CatOS or Cisco IOS Software, refer to the document CPU Utilization on Catalyst 4500/4000, 2948G, 2980G, and 4912G Switches. - The CPU load has been increased in big steps of about 20% in about two months. Cisco shows fed (PunjectRx and Xcvr) process is mostly consuming. The show processes cpu history command displays in ASCII graphical form the total CPU usage on the router over a period of time: one minute, one hour, and 72 hours, displayed in increments of one second, one minute, and one hour, respectively. 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%. Cisco3925ルータ、Catalyst3750X, Catalyst 3850などで構成したシステムを運用しています。. 6. 65% 0 SNMP ENGINEThe stack cable could need to be replaced. RSS フィードを購読する. 33%. 10-11-2017 08:11 AM. Apr 04, 2014 Contents Introduction Background Information Case Study: Address Resolution Protocol (ARP) Interrupts Step 1: Identify the Process that Consumes CPU Cycles Step 2: Determine the CPU Queue that Causes the High CPU Usage Condition Step 3. 00 4. 01 2. Fed is by far the highest consumer with Iosd coming in 2nd. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5717 251676 36349739 1470 27. 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。. There is no debugging enabled at this time. 89 0 iosd-FED process crash -flash write issue -Traffic destined to the CPU is dropped following a reload and a shut/no shut of SVI fixes it until the next reload. Cisco 3850 High CPU due to fed Go to solution. r/Cisco. This is commonly seen when the CPU is interrupted due to ARP packets. Task . We have a switch stack with 2 x WS-C3850-48T that is hitting high CPU usage. We have begun using the new generation of 3850 switches, specifically WS-C3850-24P-P switches. Second thing Please find way to troubleshoot high cpu on 3850:. Solved: Hello, I need help on understanding the problem we are facing with one of our 3850 stack. PDF - Complete Book (9. 3850 是现在常用的思科交换机，有时候遇到CPU 使用巨高的情况，严重影响网络使用，那么如何排错呢？下面是官方的推荐操作，大家可以参考参考！ Introduction Background Information Case Study: Address Resolution Protocol (ARP) Interrupts Step 1: Identify the Process that Consumes CPU Cycles Step 2: Determine the CPU Queue that Causes the High. Community. 39 0 pdsd 8581 3259771 25430981 187 2. CİSCO 3650 - 3850 HIGH CPU (FED & IOSD). High CPU observed in punjectrx fed-ots-main thread. What is that PunjectRx process that's responsible for the higher than normal value do? Core 0: CPU utilization for five seconds: 20%; one minute: 27%; five minutes: 30%. Cisco Catalyst 3850 Series Switches are the next generation of enterprise class stackable access layer switches, with the new and improved 480-Gbps StackWise-480 and Cisco StackPower. 6. 8 fed本帖最后由 xupeng 于 2015-4-10 09:12 编辑 案例分享:ARP导致3850交换机CPU中断高 第一步: 找到CPU占用率高的进程 3850系列交换机使用4核CPU, 使用show process cpu 命令将会看到: 3850-2#show processes cpu sort | exclude 0. show process cpu コマンドは、CPU の現在の状態をそのまま表示します。Cisco Catalyst 3850 シリーズ スイッチが 4 つのコアを使用していることに注意してください。次のように、4 つすべ てのコアの CPU 使用率が表示されます。 3850-2#show processes cpu sort |. 12. What is that PunjectRx process that's responsible for the higher than normal value do? Core 0: CPU utilization for five seconds: 20%; one minute: 27%; five minutes: 30%. Just swapped a failing 2960X with a 3850 and have high CPU (fed main event and linux_iosd-image . 10. 30% 79. 01-09-2020 07:33 AM. 7. 66 2. and activating IPV6 MLD snooping solved . 1 however the rest of the 3850 seems to be OK except this naught one. Das FED-Tool zur CPU-Paketerfassung hilft bei der Identifizierung von Daten, die die Kontrollebene passieren, und liefert Informationen über unterbrochenen Datenverkehr ( Pakete von ASIC zu CPU) oder injizierten (Pakete von CPU zu ASIC). 1a 23/Nov/2017. 17 25. 5sec 1min 5min Process. I recently upgraded a switch stack from 03. If only one power supply is installed, it should always be in power supply bay 1. 1. I hope this helps!1 12 WS-C3750G-12S 12. Note - For information about unsupported features, see Important Notes. Switch# show processes cpu sorted. An example is a cisco 4500X switch with a sample of the configs shown below. Checked from the monitoring software, the CPU usage is high. 5 CAT3K_CAA-UNIVERSALK9 INSTALL. 0. Fast-switching #2 is somewhat obsolete. Dec 13th, 2016 at 9:06 AM. CSCuz60141. 6371 1716285 808412104 2100 73. 44 MB)04-14-2020 05:08 AM. We recently installed our first WS-C3850-48P switches. 06% 389 SSH Process. txt" action 0. Cisco StackWise Virtual is supported only on the following Cisco Catalyst 3850 Series Switch models. High CPU Usage Caused by Process or TrafficTraditionally, most of smaller Cisco switches (3750, 3850, 2960, etc. Cisco shows fed (PunjectRx and Xcvr) process is mostly consuming the CPU. . process cpu threshold type total rising 20 interval 5 switch 2 . This script monitors a SNMP OID used to read the CPU busy percentage in the last 5 seconds. . 03aSwitching . Kindly refer to Cisco 3850: IOS-XE/Firmware Upgrade (Install Mode). It looks like the fed and iosd process is running high. As long as it is not affecting your production environment, you should be fine. 如果最近没有对网络进行任何更改，则安全问题尤其. 1. ステップ3:CPUに送信されるパケットのダンプ. 3850-48-01#show processes memory platform sorted. 1 etc then you won’t see any OID for each core , this means at present Cisco has not included or implemented the OIDs for each core under CISCO-PROCESS-MIB. This command initiates a graceful switchover from the active to the standby switch. ===== 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. event manager applet highcpu. 21 does not. Refer to Catalyst 6500/6000 Switch High CPU Utilization to clear the root cause. The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco. #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. Now CPU processing of the stack is very high and it causes the packet loss. Stack Manager and High Availability. Core 3: CPU utilization for five seconds: 30%, one minute: 39%, five minutes: 36%. Buy or Renew. 3. 4. These switches seem to be working fine with no CPU issues so far but as I said before they all have bugs. Output from top. switch# show lacp sys-id. Please provide the output to the command "sh processor memory platform sorted location switch 2 r0". 26 0 stack-mgr 13631 3774917 28728769 167 2. WS-C3850-12XS-S. I notice that the FED on one of my cisco 3850's is putting this traffic to the CP. 4, and 16. Problem analysis process. Core 0: CPU utilization for five seconds: 96%; one minute: 96%; five minutes: 96%. 242 808819595 3949538 204800 65. 1-If we stop polling or disable all the traps,will the SNMP enginer process will release the memory its holding currently. 7. _MX# sh processes cpu detailed process fed sorted Core 0: CPU utilization for five seconds: 6%; one minute: 5%; five minutes: 5%. 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% 283 I 574800 3225649 0 4. 95 MB) PDF - This Chapter (1. RegardsThe CPU is so high but there is any process consuming the CPU as you can see bellow. the 'iosd' and 'fed' processes are high, which usually means high interrupts. High CPU on 3850 Stack . We received this alert from monitoring tool > CPU (Switch 2) has exceeded threshold: 90% currently 99% Upon checking on switch, show process cpu / sho process cpu history command returns normal values: sw-1#sho processes cpuHigh CPU Utilization ladopetrucci. Cisco Moderador. lsmpi_io Pool Total: 6295128 Used: 6294296 Free: 832. 11 0 DAI Packet Process 3850-2#show processes cpu detailed process fed sorted | ex 0. 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%Étape 1 : Identifiez le processus qui consomme des cycles CPU. Normal Conditions with High CPU Utilization. 1. 19145 17642 0% 0% 0% S 296591360 fman_fp_image. 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。. CPU utilization of the process in minutes and seconds. Reboot the switch. X를 실행하는 Catalyst 스위치에서 Punt/Inject FED 패킷 캡처 구성Que tal colegas, Consultando nuevamete al foro para pedirles comentarios o si les llego a pasar algo similar, Actuamente tengo desplegado 2 Switch 3850 en Stacking en la red de un cliente, ya casi va 1 año, en la cual viene trabajando normal, me solicitaron configurar unos puertos en el switch y n. According to Cisco 3. Post the complete output to the following commands: sh platform software status control-processor brief. 72% Switch #2 (the ironic thing is that this switch is a hot spare and has nothing plugged into it) stack-mgr = 32. Core 1: CPU utilization for five seconds: 34%; one minute: 14%; five minutes: 13%. Intermittent High CPU Related Information Introduction ケーススタディ：アドレス解決プロトコル (ARP)割り込み. 9. I was struggling with high CPU utilization problems happening on the distribution switch. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process . When a process is finished with a buffer, the process must free the buffer. We have two 24 port 3850 switches stacked. The use of CLI commands such as show tech-support over SSH can cause very. I would recommend to use other DHCP server and exempt your 3850 device from this process. Invoked . 1. GM-TI14RO131#sh proc cpu det process iosd | ex 0. Fed punjectRx The above two processes are consuming the major portion of the cpu. 4. I completely understand the 24x7 operation but in some cases like th. 33% 0 SNMP ENGINEI have VSS running on 2 cisco WS-C4506-E. x. Just swapped a failing 2960X with a 3850 and have high CPU (fed main event and linux_iosd-image . 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. Cisco bug ID CSCup49704€- 3850 FED Crash - Waits for SPI channelsCisco Employee オプション. 3850 是现在常用的思科交换机，有时候遇到CPU 使用巨高的情况，严重影响网络使用，那么如何排错呢？下面是官方的推荐操作，大家可以参考参考！ Introduction Background Information Case Study: Address Resolution Protocol (ARP) Interrupts Step 1: Identify the Process that Consumes CPU Cycles Step 2: Determine the CPU Queue that. Note: It is necessary to define 'exit-val. Otherwise consider looking at the Cisco 4000 series. uSecs . We were able to do the upgrades with a single reboot. Supposedly I should have been a flood of multicast . This command would also list the processes as shown below but it would not add up to 100%. 0 Core 0: CPU utilization for five seconds: 9%; one minute: 39%; five minutes: 44% Core 1: CPU utilization for five seconds: 8%; one minute: 25%; five minutes: 28%. These are 3500 series switches used in branch offices. Last thing: move to a newer code. Available Languages. 241. Is it the version 16. #show process cpu detail process fed sorted Core 0: CPU utilization for five seconds: 67%; one minute: 61%; five minutes: 63%It looks like the fed and iosd process is running high. show platform software fed switch active cpu-interface queue retrieved dropped invalid hol-block-----High rate app 994752082 994752082 0 0. 6.