5E - read user manual online or download in PDF format. 9. . 6. 1) Collect the below output periodically and check whether the "Size" counter increases over time for "platform_mgr" process. x (Catalyst 3850 Switches). the 'iosd' and 'fed' processes are high, which usually means high interrupts. Troubleshoot 3650/3850 Stack Manager Reloads 28/Feb/2023;. 6. txt" action 0. 54 0 stack-mgr For temparary remdiation, if you have maintenance window, reboot teh device and test. And I knock to command being delay. WS-C3850-24XS-S. 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. xリリースを実行する新しいCisco IOS®-XEプラットフォーム(Polarisとも呼ばれる)で、主に割り込みによって発生するCPU高使用率の問題をトラブルシューティングする方法について説明します。. To sort for high activity usage, use show process cpu sorted command. 283 I 574800 3225649 0 4. action 0. Contacts; Feedback; Help; Site Map; Terms & Conditions; Privacy Statement; Cookie Policy; TrademarksHow to configure AVB. Description. 6. 9. In diesem Dokument wird beschrieben, wie Sie bei Problemen mit hoher CPU-Auslastung, vor allem aufgrund von Unterbrechungen, auf den neuen Cisco IOS®-XE-Plattformen, auf denen 16. Step 1. system crash on execute "fed TCAM utilization". 0 Core 0: CPU utilization for five seconds: 53%;. 08-14-2013 04:13 AM. Kindly refer to Cisco 3850: IOS-XE/Firmware Upgrade (Install Mode). 241. 1900 <-- Your system MAC address. Dumps all the packets sent to the different CPU queues and possible drops. BRM_HQ_CSW_01#sh proc cpu sort. 0 Core 0: CPU utilization for five seconds: 74%; one minute: 76%; five minutes: 75% Core 1: CPU utilization for five seconds: 100%; one minute: 71%; five minutes: 73% Core 2: CPU utiliza. Cisco Moderador. 0 Helpful. ip dhcp snooping vlan 1-110. 02 1088 fedI 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. As stated earlier, I plan to upgrade the software to 3. An example is a cisco 4500X switch with a sample of the configs shown below. I canget a # enable prompt but after 15-20seconds this is what occurs: Mar 31 17:58:42. 96 29. 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. CAt 9300 is the better option and cisco more promoting Cat 9300 rather. 93% 17. xE releases as well as Cisco IOS XE Denali16. 4, then you're probably hitting this bug CSCuz57493 - High CPU observed in punjectrx fed-ots-main thread. Stack Manager and High Availability Commands;. After researching I have noticed that my CPU utilization is really high. 1. 4802: -Process= "IOSD ipc task", ipl= 0, pid= 74. Also, I was reading this about NX-OS : The Cisco NX-OS operating system takes advantage of preemptive CPU multitasking, so processes can take advantage of an idle CPU in order. xE. I noticed that sh run, wr and some other sh commands are taking forever to execute. x (Catalyst 3850 Switches) Chapter Title. 3850-2#show processes cpu detailed process iosd sort | ex 0. The CPU usage is primarly used by the following processes. 71 29. 84 44. C3850#sho processes cpu detailed process fed sorted | ex 0. 109. 1. Troubleshoot High CPU Usage in Catalyst Switch Platforms Running IOS-XE 16. 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. There is no debugging enabled at this time. We have a high CPU utilization for the past one week and I am trying to find the reason. 00 Core 0: CPU utilization for five seconds:. 109. I completely understand the 24x7 operation but in some cases like th. Image 13 shows the updated I/O graph for an interface that experienced output drops. Cisco bug ID CSCup49704 - 3850 FED Crash. 1 to 3. We are looking for early feedback from customers before 16. The Cisco 3850 reboot after a couple of hours in operations. Thanks, Tom . Investigate Why FED is Punting Packets to the. Cisco 3850 High CPU due to fed Go to solution. [6] The switch ships with one power supply by default, and the second power supply can be purchased at the time of ordering the switch or at a later time. System returned to ROM by Power Failure. Options. 发出 show processes cpu 命令可显示有关这些进程的详细 CPU 使用率统计信息,发出 show processes memory 命令可显示使用的内存量。. 03. I found the following documention mention how. In general, the larger the Layer 2 or Layer 3 network, the greater the demand on the CPU to process network-related traffic. Step 1: Identify the Process that Consumes CPU Cycles. Most of the time high CPU utilization is a software issue and not so much hardware but you never know. Be prepared to upgrade to a later (and newer) release of 16. Switch firmware is 16. 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. #sh processes cpu sorted CPU utilization for five seconds: 96%/84% ; one minute: 96%; five. Tracing. 6. 6, haven't seen any related bugs for this version. x 20/Aug/2020. txt. 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. Address Resolution Protocol Interrupts Step 1. spencer. 1 syslog msg "high CPU detected" action 0. When the rate meets or exceeds 10^6 bits per millisecond, the switch experiences congestion or output drops. action 3. Symptom: SISF main thread or SISF Switcher Th process causing high CPU. 97 1088 fed 9926 3902102 37182712 364 8. The busiest process seems to be 'fed' k390-cal-r-4a-0#show proc cpu sorted Core 0: CPU utilization for five seconds: 59%; one minute: 53%;. 9. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. xE image, your boot loader will not automatically downgrade. 50 69. I saw that there were similar issues with Cisco ASR devices and a customer poller was created. 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. 0". 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%. This is causing processes like SNMP and SSH to freeze up and not work properly. 03% Hulc LED Process. The memory utilization for switch 2 is abnormally high (ideally <50%). 3. Unless otherwise noted, the terms switch and device refer to a standalone switch and to a switch stack. r/Cisco. 00% 0. Esempio di script EEM (Embedded Event Manager) per gli switch Cisco Catalyst serie 3850. RSS フィードを購読する. x software on the Cisco Catalyst 3850 Series Switches. LegacyIPDeviceTracking(IPDT) ipv6 neighbor tracking auto-source[fallback host-ip-address subnet-mask][override] ip device tracking probe auto-sourceThe reason for reported high CPU usage when the device performs normally with normal, low, or no load is due to a change in the formula used in order to calculate usage. 03. According to our customer's feedback, the CPU usage rate of a Cisco aggregation switch has increased recently. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 6032 889844 24282930 618 25. 69 34817 iosd There are several bugs involving high CPUs and "stack-mgr" and "iosd" processes and CSCuo14511 is one of them. found a flapping port- disconnected and CPU seems to be stable. The following is a log entry example for. 12. - The CPU load has been increased in big steps of about 20% in about two months. so that you can only see the processes that actually use CPU cycles. event manager applet highcpu. It is important to monitor these queues in order to discover which. Core 0: CPU utilization for five seconds: 7%; one minute: 11%; five minutes: 10% 283 I 574800 3225649 0 4. x and 16. Hi everyone, Our c3850's version is 16. Mark as New; Bookmark; Subscribe; Mute; Subscribe to RSS Feed;. There is preloading and installation that can be done during production time. This is the output from the command show processes cpu sorted. 0 Core 0: CPU utilization for five seconds: 80%; one minute: 80%; five minutes: 83% Core 1: CPU utilization for five seconds: 16%; one minute: 18%; five minutes: 25% Core 2: CPU utilization for five seconds: 9%; one minute: 19%; five minutes: 23% Core 3: CPU utilization for five seconds: 95%. Initiating Graceful Switchover. This traffic ends up on queue 23 . txt" action 6. 0. 2 cli command "enable" action 0. 0 Core 0: CPU utilization for five seconds: 45%; one minute: 44%; five minutes: 44%. As per RFC7042, all MAC-48 multicast identifiers prefixed "33-33" (that is, the 2**32 multicast MAC identifiers in the range from 33-33-00-00-00-00 to 33-33-FF-FF-FF-FF) are used as. 11 0 IP Host Track Proce #show processes cpu detailed process fed sort | ex 0. Model Number : WS-C3850-48P. We have one Catalyat 3850 switch with High CPU utilization. 27777 26990 0% 0% 0% S 314179584 fman_rp. ICMP is also being returned with spikes up to 1000ms. you have to execute "show platform QoS queue stats" output to check for drops. IPX broadcasts - Check if the router is overwhelmed with IPX broadcasts using the show ipx traffic command. How do I check CPU usage on Cisco firewall? Output of show. 4 cli command "show process cpu detailed process sorted | nvram:. 00 4. 簡介 背景資訊 案例研究:地址解析協定 (ARP)中斷 第1步:確定消耗CPU週期的進程 第2步:確定導致CPU使用率過高的CPU隊列 第3步:轉儲傳送到CPU的資料包 第4步:使. SSH process spike occurs majorly if large amount of data being sent on the ssh session. Core 1: CPU utilization for five seconds: 99%; one. These switches seem to be working fine with no CPU issues so far but as I said before they all have bugs. #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. fed —The Forwarding Engine Driver process. All other devices have typical utilization <1% but the EBNs and FRs are running between 5-6% constantly. Peaks are cyclic and take place one a minute during 15 seconds more or less, I have checked processes: 111111111111111 6666600000000000000066666 2111113333366. - Set Main LED and ports LEDs. NOTE: The number of TAC Cases associated to this bug has gone so. For example, sometimes you can have a 3750 CPU problem caused by using the "wrong" SDM template. The CPU on the Cisco StackWise Virtual active switch performs all. Symptoms of high CPU (SR 680000139) have also been seen to trigger this type of issue. This command initiates a graceful switchover from the active to the standby switch. High CPU Troubleshooting Workflow Case Study 1. Problem analysis process. x (Catalyst 3850 Switches) Chapter Title. Just swapped a failing 2960X with a 3850 and have high CPU (fed main event and linux_iosd-image . High CPU Usage Caused by Process or TrafficHigh end routers (7000, 7500 series) have their buffers in main dynamic random-access memory (DRAM),. txt" action 0. Note: It is necessary to define 'exit-val. 4, and 16. Please find attachement. I'm having issues with switches in my network , high cpu bounces from code to core , Switch-xxx#sh processes cpu | ex 0. 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. 07. BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 1. 99 MB). 78 25. One or more Cisco IOS process is consuming too much CPU time. Pages in total: 54. 0 CORE-SW01#show proc cpu detailed process fed | ex 0. Buy or Renew. com Catalyst C3850 and Catalyst C3650 switches might report unexpected high CPU usage despite any changes made to the configuration or network traffic inbound or outbound to the switch. NCM is reporting lower CPU for our 3850 & 3650 switches. Description. 3. 0 Core 0: CPU utilization for five seconds: 98%; one minute: 92%; five. Catalyst 3750XのCPU使用率が高いという問題があり、シスコ社の文書を参考にしてトラブルシューティングを行いました。. 10% 61. Cisco StackWise Virtual is supported only on the following Cisco Catalyst 3850 Series Switch models. 9 74. 排除CPU使用率过高故障. show platform software fed switch active punt cpuq al. 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). 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. E. Stack manager is a Linux€process that manages the. ) run high on CPU and there is really not much you can do about it except upgrading to a different version, and that sometimes help but not always. 33 4. 4) Prior to CSCuu14019, interfaces won't display "output drop" counters. Cisco Employee. 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. 2 52 WS-C3650-48PD 16. uSecs . Fast-switching #2 is somewhat obsolete. , this is the output for the first switch, on the others the cpu utilization shows a s 8 to 14 %. 9. 3. 18694 17000. Currently have a hardware issue with some PCs on our network flooding traffic, this is resulting in high cpu usage on our 3850 switches. 6% of my total CPU power, I. I hope this helps!1 12 WS-C3750G-12S 12. Cisco IOS-XE 16 - 요약; Catalyst 3850 시리즈 스위치 높은 CPU 사용량 문제 해결; Cisco IOS ® 및 IOS ®-XE를 위한 임베디드 패킷 캡처 컨피그레이션 예; IOS-XE 16. show processes cpu platform sorted location switch 1 r0. EN US. Says the following: When you downgrade to a Cisco IOS XE 3. The symptom is seen on ports having FO and FX SFP modules. Here are some outputs: switch#sh proc cpu sort | e 0. #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. Look at the “logfile: Cisco IOS” report prior to a reset is typically a good place to start. 7. 2. x. Release Notes for Cisco Catalyst 3850 Series Switches, Cisco IOS XE Denali 16. 6. Eg. Catalyst 3850 Series Switch High CPU Usage Troubleshoot Document ID: 117594 Contributed by Aninda Chatterjee and Yogesh Ramdoss, Cisco TAC Engineers. 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. In IOS command: 3750E#show proc cpu. Stack Adapter (if applicable) - Reseat the stack adapter at least two times in order to see if it fixes the problem. show controllers cpu-interface の出力結果のうちicmpキューの. Options. 4 and below is a copy of the command "show process cpu | ex 0. Core 3: CPU utilization for five seconds: 30%, one minute: 39%, five minutes: 36%. Here is some output: SW58#sh mod. Schritt 4: Verwenden der FED-Ablaufverfolgung. Checked from the monitoring software, the CPU usage is high. 2 (40)SE C3750-ADVIPSERVICESK. 9. 1 syslog msg "high CPU detected" action 0. 11 0 DAI Packet Process 3850-2#show processes cpu detailed process fed sorted | ex 0. 3850-48-01#show processes memory. 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. Using the command 'show processes cpu' does not show that the CPU is being taxed. 手順4:FEDトレースの使用. 86 0 iosd . E. We've encountered high CPU utilization issue on our 2x3650 stack. Engager Options. " Reference: Catalyst 3850: Troubleshooting Output drops. Task . 12. Passaggio 2: Determinare la coda di CPU che causa la condizione di utilizzo elevato della CPU. Has anyone seen this and solved it without an upgrade. 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%. m. Please see the output from sho platform software fed switch active cpu-interface. We are running software version: cat3k_caa-universalk9, version 03. 41 49. txt. show processes cpu | ex 0. 99 MB). Here is some output: SW58#sh mod. 04. 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。. WS-C3850-24XS-S. I have been working with TAC for almost a year on this issue. 27777 26990 0% 0% 0% S 314179584 fman_rp. Field Notice: FN - 64191 - Catalyst 3850/3650 Switches That Run Cisco IOS XE Releases 3. Monitoring tool shows Memory 1 is running with 90% (above threshold limit) and other memory is fine. sample capture from device: switch#Show process CPU sorted | ex 0. 0 Core 0: CPU utilization for five seconds: 53%; one minute: 39%; five minutes: 41% Core 1: CPU utilization for five seconds:. 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. * 2 52 WS-C3750G-48PS 12. This command would also list the processes as shown below but it would not add up to 100%. We tried disabling ip dhcp snooping on user VLANs and adding deny all rule for ipv6 but nothing helps. I have found others discussion with high CPU process but there is no clear explanation for PunjectRx. x-Versionen (auch Polaris genannt) ausgeführt werden, Abhilfe schaffen. If the option is #2, it would be highly recommendable if the switch can be COLD reboot. The FED CPU packet capture tool helps identify data that traverses the control-plane and provides. As stated earlier, I plan to upgrade the software to 3. 1-If we stop polling or disable all the traps,will the SNMP enginer process will release the memory its holding currently. . Supposedly I should have been a flood of multicast . 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. 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. Catalyst 3850 Series Switches On Catalyst 3850 switches, NGWC L2M Process uses CPU to process IPv6 packets. 39 0 pdsd 8581 3259771 25430981 187 2. Cisco 3850 Reporting lsmpi_io. 03. 2(53)SE. Processor Pool Total: 886321088 Used: 335837328 Free: 550483760. I have been trying to figure out 3850 / 3650 CPU queue traffic with not much success. 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). process cpu threshold type total rising 80 interval 5! event manager applet High_CPU authorization bypass event syslog occurs 1 pattern "CPURISINGTHRESHOLD" action 1. High end routers (7000, 7500 series) have their buffers in main dynamic random-access memory (DRAM),. Our management systems is only reading the output on "sh process cpu platform" which is very different from "sh process cpu". SE. Traffic across the switch is stable at this time but we are concerned about this issue. For Wireshark packet capture, packets are copied and delivered to the CPU, which causes an increase in CPU usage. The body of the email is the output of the show process cpu sorted command. 11 0 DAI Packet Process 3850-2#show processes cpu detailed process fed sorted | ex 0. 93 0 stack-mgr 5846 3930459 20739688 103 24. 39 5. Step 1. The "Hulc LED" process does following tasks: - Check Link status on every port. r/Cisco. This will be the second beta rebuild on 16. 3 0 fed. X or 3. It will remain updated. Number of times that the process has been invoked. The root cause of the issue is with any ICMPv6 or DHCPv6 Solicitation packet and when dhcp snooping is configured on the switch. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 6032 889844 24282930 618 25. This is causing processes like SNMP and SSH to freeze up and not work properly. I was looking at a show proc CPU history on a 3850 (IOS-XE) switch and I see short CPU spikes. CSCtn42790 : 3560X/3750X: Elevated. 02. Switch_1# sh processes cpu platform sorted location switch 1 R0 | in fman. 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. Unless otherwise noted, the terms switch and device refer to a standalone switch and to a switch stack. 3 to see if it helps but any suggestions would be helpful. 00 Core 0: CPU utilization for five seconds: 4%; one minute: 5%; five minutes: 5% Core 1: CPU utilization for five seconds: 2%; one minute: 1%; five minutes: 1%If a Cisco device is suffering from high CPU usage, we can use the show processes command to list all running processes and determine the cause of problem. Conditions:. clear socket PID. 02. 04SE. CSCuq48800. ' As the script collects data, it increases CPU utilization. 39 MB) View with Adobe Reader on a variety of devices. 0 Core 0: CPU utilization for five seconds: 34%; one minute: 35%; five minutes: 41% Core 1: CPU utilization for five seconds: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. we had an alert through for a sustained period of high cpu usage, upon investigation we observed the following. 506 Central: %IOSXE-5-PLATFORM: 2 process fed: Logging is not supported for Client/Group ACL Feb 22 07:06:56. 42 0 fedHigh CPU Utilization may be seen on some Cisco Catalyst platforms due to IPv6 Multicast traffic with MAC address in the range 3333. You can check if you hit the following bug. Additionally, the. 66 26. 2 releases, CPU utilization is computed based on the Load Average from show system status on the vEdge. process cpu threshold type total rising 20 interval 5 switch 2 . ARP Requests from Apple Devices High CPU. Mostly, if you set up the SNMP correctly the IOS will "SLOWLY" release the CPU/Memory. The high CPU utilization is caused by constantly recalculating paths. 3850 FED Crash - Waiting for SPI channels FED_SPI_FLCD,FED_SPI_FAST. Additional Reading. 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。 07-17-2019 12:32 AM. we are facing issue of HIGH CPU usage on 3850 switch. 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. 42 1088 fed 6258 3292482 92102444 4593 23. txt". 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%. here is the output: DC1#show process cpu | ex 0. The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. 97% 0 ARP Input. The use of CLI commands such as show tech-support over SSH can cause very. 1. See the attached process output. 10. 0 show proc cpu sorted | ex. 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. Identify the Process that Consumes CPU Cycles Step 2. 93 26. Now CPU processing of the stack is very high and it causes the packet loss. In our SDA network I've noticed that the External Border Routers (EBN) and Fusion Routers (FR) are reporting high IOSXE-RP Punt Se. lsmpi_io Pool Total: 6295128 Used: 6294296 Free: 832. Stack Manager and High Availability. 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.