The other cpu core are fine at below 20% utilization. Troubleshoot High CPU Usage in Catalyst Switch Platforms Running Cisco IOS-XE 16. This command would also list the processes as shown below but it would not add up to 100%. Troubleshoot High CPU Usage in Catalyst Switch Platforms Running IOS-XE 16. 06 to 16. 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。. GM-TI14RO131#sh proc cpu det process iosd | ex 0. Is it the version 16. Eg. x (Catalyst 3850 Switches). Note: Running a debug over a production network may overwhelm the router. 0 Core 0: CPU utilization for five seconds: 53%;. Resolution resolved our issue. Now CPU processing of the stack is very high and it causes the packet loss. the 'iosd' and 'fed' processes are high, which usually means high interrupts. 03. 0 Core 0: CPU utilization for five seconds: 53%; one minute: 39%; five minutes: 41% Core 1: CPU utilization for five seconds:. Switch_1# sh processes cpu platform sorted location switch 1 R0 | in fman. WhenOnly TAC will know how to decipher what is causing the process "linux_iosd-imag" to be chomping up so much memory. 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. As the process is using 18. However, due to the differences in architecture and forwarding mechanisms between. 10#sh proc cpu so. 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. 4E or Earlier Might Exhibit High CPU Usage FN - 70110 - Memory Leak Issue on C3850/C3650 Switches That Run Polaris Software Version 16. Have you tried: show processes >>> This will list all of the running processes and will help you locate the PID of the process that you want to kill. 00 Core 0: CPU utilization. #sh processes cpu sorted CPU utilization for five seconds: 96%/84% ; one minute: 96%; five. Look at the spanning tree instance details ('sh span det' or something to that effect). 6. 6. We have now found out that switch one of the two, is running constantly on 99% usage for core 4. Core 1: CPU utilization for five seconds: 99%; one. Checked from the monitoring software, the CPU usage is high. I noticed a lot of these devices are Apple iOS Devices that are spamming it. WS-C3850-24XS-S. Core 0: CPU utilization for five seconds: 96%; one minute: 96%; five minutes: 96%. Command Reference, Cisco IOS XE Gibraltar 16. 10187 2009764 10763907 145 1. 2(55)SE8, RELEASE SOFTWARE (fc2)283 I 574800 3225649 0 4. 7 due to a number of bugs on the previous firmware, including high CPU utilization. Hello, I have a Cisco 3850 stack with 2 switches, 3. Mark as New; Bookmark; Subscribe;. - If the switch supports POE, it checks to see if there is a Power Device (PD) detected. Eg: switch# show platform software process list switch active R0 sort memory. action 5. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5715 4011600 27402184 4878 25. . ARP Requests from Apple Devices High CPU. This is the output from the command show processes cpu sorted. System restarted at 11:41:09 KST Mon Feb 15 2016. 5, however the cpu will reach to 100% occasionally I have configured the event already, event manager applet highcpu event syslog pattern ". A value for exit-val ensures that the script does not run in an endless loop. 05 will be stable ? or 16. Looking at the memory stats below I can't seem to figure out what is taking up all the memory, I know there is a Field Notice: FN - 70359 and 70416 that deal with high memory utilization on IOS versions, 16. 26. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed;. x-Versionen (auch Polaris genannt) ausgeführt werden, Abhilfe schaffen. 66 26. Cisco IOS-XE 16 - At a Glance; Catalyst 3850 Series Switch High CPU Usage Troubleshoot; Embedded Packet Capture for. 1. High CPU caused by pdsd, iosd processes. Beginner. We have been able to investigate which port is driving the high cpu. 03. I don’t think you can read individual core usage at this point, if you use SNMP Object Navigator and drilldown . show processes cpu sort | exclude 0. Beginner. 20, RELEASE SOFTWARE (P) 3850_SW uptime is 14 weeks, 23 hours, 27 minutes. This is causing processes like SNMP and SSH to freeze up and not work properly. I upgraded the firmware from 16. x software on the Cisco Catalyst 3850 Series Switches. 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. 93% 17. 1. 2. 6371 1716285 808412104 2100 73. 1. 0 info type routername action 2. 3. Model Number : WS-C3850-48P. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5715 4011600 27402184 4878 25. We've encountered high CPU utilization issue on our 2x3650 stack. Second thing Please find way to troubleshoot high cpu on 3850:. Cisco Catalyst 3850系列交換器具有許多佇列，可滿足不同型別的封包（FED維護32個RX CPU佇列，這些佇列是直接前往CPU的佇列）。. 0 show proc cpu sorted | ex. Below is the logs from the switch: HOSTNAME#sh ver Cisco IOS Software, IOS-XE Software, Catal. . EN US. 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. 0 cli show processes cpu sort >> bootflash:high-cpu. Any recommendation for new stable IOS please. txt" action 0. Fast-switching #2 is somewhat obsolete. 34 23. 03. Use show process cpu , to determine which process causes this issue. 06. Del comando show process cpu las visualizaciones naturalmente cómo el CPU mira actualmente. 手順2：高いCPU使用率を引き起こすCPUキューを判別する. conf" Last reload reason: Critical process fed fault on fp_0_0 (rc=139)Go to Cisco r/Cisco. WS-C3850-24XS-S. 20 has the issue while . 01 49. We have two 24 port 3850 switches stacked. Hi all, i need help with sorting out CPU utilization. Mem: 7508840k total, 6830632k used, 678208k free, 67344k buffers. x (Catalyst 3850 Switches) Chapter Title. This release note gives an overview of the features for the Cisco IOS XE Denali 16. 0 cli show clock >> bootflash:high-cpu. Observe que o Cisco Catalyst 3850 Series Switch usa quatro núcleos e você verá o uso da CPU listado para todos os quatro núcleos: 3850-2#show processes cpu sort | exclude 0. NPM has been reporting high memory utilization, which is attributed to the lsmpi_io reading. Suggesting to upgrade to 03. 5E/3. Cisco shows fed (PunjectRx and Xcvr) process is mostly consuming the CPU. 07 26. 0 Core 0: CPU utilization for five seconds: 53%; one minute: 39%; five minutes: 41% Core 1: CPU. xxxx being punted to CPU. There were heaps of logs like below: 4801: Alternate Pool: None Free: 0 Cause: No Alternate pool. . x. 72% Switch #2 (the ironic thing is that this switch is a hot spare and has nothing plugged into it) stack-mgr = 32. Stack Manager and High Availability. I canget a # enable prompt but after 15-20seconds this is what occurs: Mar 31 17:58:42. Core 0: CPU utilization for five seconds: 12%; one minute: 13%; five minutes: 17%. #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. ===== 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. #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. The root cause of the issue is with any ICMPv6 or DHCPv6 Solicitation packet and when dhcp snooping is configured on the switch. IP 10. show platform software fed switch active cpu-interface queue retrieved dropped invalid hol-block-----High rate app 994752082 994752082 0 0. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 6032 889844 24282930 618 25. Good candidates. Switch # redundancy force-switchover System configuration has been modified. These are all different software techniques, with different performance in terms of the maximum number of packets that can be routed per second. xxxx being punted to CPU. Upgrade the firmware to something more recent. Catalyst 3850 Series Switches On Catalyst 3850 switches, NGWC L2M Process uses CPU to process IPv6 packets. 0 cli command "show processes cpu detailed process fed sort | append flash:HG-CPUlog. 27777 26990 0% 0% 0% S 314179584 fman_rp. Hello all, we are facing issue of HIGH CPU usage on 3850 switch. 11 0 DAI Packet Process 3850-2#show processes cpu detailed process fed sorted | ex 0. 242 808819595 3949538 204800 65. 6. 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。. Conditions: Excessive mac-address flapping OR Aggressive mac-aging timer configuration - <= 15 seconds OR Through our monitoring system we saw an peak in the CPU usage on one of our C3850 switch stacks. so that you can only see the processes that actually use CPU cycles. Reboot the switch. 04. Traffic that exceeds the default 600 packet per second rate in the CoPP policy is dropped before it reaches the CPU. 检查是否存在可能的安全问题。. High CPU WS-C3850-48T. 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. packets (the FED maintains 32 RX CPU queues, which are queues that go directly to the CPU). A vulnerability in the IP Version 4 (IPv4) processing code of Cisco IOS XE Software running on Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS). 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. 5E - read user manual online or download in PDF format. Currently have a hardware issue with some PCs on our network flooding traffic, this is resulting in high cpu usage on our 3850 switches. I have already found out that the high core usage is only happening on switch 1. Buy or Renew. 506 Central: %IOSXE-5-PLATFORM: 2 process fed: Logging is not supported for Client/Group ACL Feb 22 07:06:56. 33 4. Contacts; Feedback; Help; Site Map; Terms & Conditions; Privacy Statement; Cookie Policy; TrademarksHow to configure AVB. 506 Central: %IOSXE-5-PLATFORM: 2 process fed: Logging is not supported. Switch# show processes cpu sorted. IOSd resides at the control. 71. This script monitors a SNMP OID used to read the CPU busy percentage in the last 5 seconds. 79% Replenish OOB = 16. X or 3. Solved: Hello, I need help on understanding the problem we are facing with one of our 3850 stack. 50 69. 71 69. 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. Fed is by far the highest consumer with Iosd coming in 2nd. 35 Command Summary - High CPU Troubleshooting Steps Check CPU usage on IOS threads Commands show process cpu detailed process iosd [sorted] Check CPU usage on platform dependent and Nova threads Check traffic on the RX and TX CPU queues show process cpu detailed process {fed platform_mgr stack-mgr ha_mgr. Ive seen it cause stp instability as well as stack member crashes. The migration to 3850 was a 1 to 1 where the 3750X was replaced. Core 0: CPU utilization for five seconds: 1%; one minute: 4%; five minutes: 23%. 3. 3. If the command syntax check in the running configuration of the active switch fails while the standby switch is booting, use the redundancy config-sync mismatched-commands command to display the Mismatched Command List (MCL) on the active switch and to reboot the standby switch. 00 4. 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. Community. 79% Replenish OOB = 16. Suggesting to upgrade to 03. 10-11-2017 08:11 AM. High CPU utilization percentage with a low interrupt percentage indicates a problem with an operating system process. show platform software fed switch active punt cpuq al. Buy or Renew. 00 Core 0: CPU utilization for five seconds: 80%; one minute: 79%; five minutes: 79% Core 1: CPU utilization for five. 73 26. IOSd: This is the Cisco IOS daemon that runs on the Linux kernel. 12. Core 2: CPU utilization for five seconds: 57%; one minute: 65%; five minutes: 67% Core 3: CPU utilization for five seconds: 53%; one minute: 61%; five minutes: 62% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5714 985059 97694899 424 45. 95 MB) PDF - This Chapter (1. how i can minimze the CPU Utilziation for this process. Download Download Options. event snmp oid 1. txt. Cisco Moderador. Known Affected Release. 3. Hope that helps. 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. 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. High CPU observed in punjectrx fed-ots-main thread. 6, haven't seen any related bugs for this version. 3. x. However, this is not my case. The new boot loader can support booting both Cisco IOS XE 3. 06 to 16. *SYS-1-CPURISINGTHRESHOLD. 96 29. . Since two weeks the core switch has an utilization of 100% (every ten minutes). For example, sometimes you can have a 3750 CPU problem caused by using the "wrong" SDM template. core". The updated graph more accurately displays the true I/O rate of the interface. CPU utilization of the process in minutes and seconds. I read a lot of threads, but most of them are regarding the fed or stack-mgr. Output from top. 2 27. 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. 1 syslog msg "high CPU detected" action 0. 0 Core 0: CPU utilization for five. 84 44. 01 26. 35 49. My Catalyst 3850 is showing high CPU utilization and I am unsure what is causing the issue. I have been trying to figure out 3850 / 3650 CPU queue traffic with not much success. txt" action 6. johnlloyd_13. 3. The memory utilization for switch 2 is abnormally high (ideally <50%). If you reboot the switch before. It is run as a software process within the kernel. 5 Helpful. 手順4:FEDトレースの使用. 2 cli command "enable" action 0. 1. Cisco bug ID CSCup49704 - 3850 FED Crash. 4, then you're probably hitting this bug CSCuz57493 - High CPU observed in punjectrx fed-ots-main thread. 1-If we stop polling or disable all the traps,will the SNMP enginer process will release the memory its holding currently. Hi Guys, i have one cisco switch WS-C3850-48XS-S with image 16. 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. 91% 84. Says the following: When you downgrade to a Cisco IOS XE 3. For Wireshark packet capture, packets are copied and delivered to the CPU, which causes an increase in CPU usage. 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%. I notice that the FED on one of my cisco 3850's is putting this traffic to the CP. I have already found out that the high core usage is only happening on switch 1. C3850# show processes cpu detailed process fed sorted | ex 0. the second number in arrow above shows the interrupt percentage value. Stack Manager and High Availability. 06. PDF - Complete Book (9. 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. 0 Core 0: CPU utilization for five seconds: 98%; one minute: 92%; five. Schritt 2: Bestimmen der CPU-Warteschlange, die die hohe CPU-Auslastung verursacht. 00 Core 0: CPU utilization for five seconds: 55%; one minute: 78%; five minutes: 78% Core 1: CPU utilization for five seconds: 68%; one minute: 66%; five minutes: 65% Core 2: CPU utilization for five seconds. txt action 4. 2. Please see bug details. 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. 08-14-2013 04:13 AM. . Core 1: CPU utilization for five seconds: 18%; one minute: 24%; five minutes: 28%We have one Catalyat 3850 switch with High CPU utilization. 5b without a noticeable change in CPU levels. Home; Documents; Troubleshooting Cisco Catalyst 3850 and 3650 Series. The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco. But at the same time other switches' delay is normal except 10. 2 cli command "enable" action 0. 506 Central: %IOSXE-5-PLATFORM: 2 process fed: Logging is not supported for Client/Group ACL Feb 22 07:06:56. 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。. 30% 79. mil1. 6. 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. xxxx. Es importante monitorear estas colas para descubrir qué paquetes se envían a la CPU y cuáles son procesados por Cisco IOSd®. The "Hulc LED" process does following tasks: - Check Link status on every port. 42 1088 fed 6258 3292482 92102444 4593 23. 03-10-2009 09:24 PM. 06. x (Catalyst 3850 Switches) Configuring Optional Spanning-Tree Features Monitoring the Spanning-Tree Status. 9. 65% 61. 4 software release is posted on CCO for General Availability (GA). 7, rebooting itself several times and sending this logs: %IOSXE-4-PLATFORM: Switch 1 R0/0: kernel: EDAC MC0: 1 CE DIMM 0 rank 0 bank 7 row 56455 col 7348 on any memory ( page:0x0 offset:0x0 grain:0 syndrome:0x0) A. One or more Cisco IOS process is consuming too much CPU time. 10-21-2013 01:50 PM - edited 03-07-2019 04:09 PM. What firmware is the stack running on and what is the uptime (post the complete version to the command "sh version"). Initiating Graceful Switchover. Dears, I'm facing problem in the CPU Utilization on Cisco 3750x, the below is the resault of "show process cpu sorted": 5Sec 1Min 5Min TTY Process. ping form switch: c3560#ping 10. High CPU Usage on 3850 Go to solution. Buy or Renew. 1. 2 releases, CPU utilization is computed based on the Load Average from show system status on the vEdge. Symptom: A Catalyst 9200 switch may crash when executing "show platform hardware fed switch active fwd-asic resource tcam utilization 1". 06. ステップ3:CPUに送信されるパケットのダンプ. Current state of the process. WS-C3850-24XS-E. Hello Is it better to buy Catalyst 9300 with 8 10G port network module or Cat 3850 12 port fiber switch ( stack) We are looking for upstream switch with L3 and SDA capabilities. PDF - Complete Book (8. Monitoring tool shows Memory 1 is running with 90% (above threshold limit) and other memory is fine. Stack manager is a Linux€process that manages the. Does anyone here. BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 1. 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. 1. we had an alert through for a sustained period of high cpu usage, upon investigation we observed the following. 6. When cpu was running high, we noticed. 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. and activating IPV6 MLD snooping solved . 5 Helpful. 07-17-2019 12:32 AM. 1. The CPU usage is primarly used by the following processes. 7andalllaterCiscoIOS XE16. I'm using to SFP interface only. action 3. My process cpu goes high and when i check IOSD prcoess taking majority of CPU. This is just to rule out any. Conditions:. Thanks PL. Core 0: CPU utilization for five seconds: 98%; one minute: 74%; five minutes: 79% Core 1: CPU utilization for five seconds: 2%; one minute: 12%; five minutes: 8% then i realized it's about fed and issued the below command . Hi fellow network ninjas, We have c3850 (WS-C3850-24-T) running with ip services license and version 03. Passaggio 2: Determinare la coda di CPU che causa la condizione di utilizzo elevato della CPU. ePub - Complete Book (2. #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. 06E RELEASE SOFTWARE (fc1)) when we checked the software we noticed that software version effected with vstack vulnerability and we want to upgrade to latest stable version afterI have checked the. This document describes causes of high CPU utilization on the Cisco Catalyst 3750 Series Switches. MAC address Hw Ver. CAM Utilization for ASIC# 0 Max Used. If only one power supply is installed, it should always be in power supply bay 1. 4. This will be the second beta rebuild on 16. 7. Rising star. 9. le compartimos algunos links que le ayudarán a familiarizarse con la Comunidad. 00 Core 0: CPU utilization for five seconds:. C3850#sho processes cpu detailed process fed sorted | ex 0. 12 2318098713 431897532 5367 61. 4) Prior to CSCuu14019, interfaces won't display "output drop" counters. ' As the script collects data, it increases CPU utilization. Note - For information about unsupported features, see Important Notes. 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. 663: %PMAN-3-PROCHOLDDOWN: F0/0: pman: The process fed has been helddown (rc 139) Chassis 1 reloading, reason - Reload command. 1, 16. Note: It is necessary to define 'exit-val. Switch firmware is 16. Field Notice: FN - 64191 - Catalyst 3850/3650 Switches That Run Cisco IOS XE Releases 3. Core 2: CPU utilization for five seconds: 100%; one minute: 99%; five minutes: 99% Core 3: CPU utilization for five seconds: 100%; one minute: 99%; five minutes: 100% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 5635 4023094 34582089 2885 74. OL-32621-01 Caveats. This requires the switch to receive the DHCP Discover and punt this packet up to its CPU to process. 4. System returned to ROM by Critical process fed fault on fp_0_0 (rc=139) System image file is "flash:packages. 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. show processes cpu platform sorted location switch 1 r0.