1. this switch reloaded unexpectedly and below is the reason showing. 26. 07-17-2019 12:32 AM. E to 16. txt"We had the same issue on many stacks and ended up upgrading the IOS to at least Version 03. Core 3: CPU utilization for five seconds: 30%, one minute: 39%, five minutes: 36%. #show processes cpu detailed process iosd sort | ex 0. 95% 78. CPU . 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. 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：. after a while it recovery to normal. 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. Please provide the output to the command "sh processor memory platform sorted location switch 2 r0". Check these issues: Interrupt switching is disabled on an interface (or interfaces) that has (have) a lot of traffic. The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. The CPU usage is primarly used by the following processes. 7 due to a number of bugs on the previous firmware, including high CPU utilization. CPU utilization for five seconds: 98% /3%; one minute: 96%; five minutes: 98%. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process . 242 808819595 3949538 204800 65. 03 cli command "no monitor capture tac_cpu" 相关信息. 6 we are facing the high CPU usage. Full screen Standard. We have now found out that switch one of the two, is running constantly on 99% usage for core 4. Step 1: Identify the Process that Consumes CPU Cycles. 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. 03. 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. Core 0: CPU utilization for five seconds: 99%; one minute: 98%; five minutes: 98%. CPU utilization for five seconds: 56%, one minute: 57%, five minutes: 58%. WS-C3850-24XS-E. 66 26. 2 process that seems to be the culprit. Note: Running a debug over a production network may overwhelm the router. FN - 64191 - Catalyst 3850/3650 Switches That Run Cisco IOS XE Releases 3. As long as it is not affecting your production environment, you should be fine. Fast-switching #2 is somewhat obsolete. type . 12. I have 3 of the 9 standalone switches still reporting high cpu and I am receiving alerts from Cisco Prime. 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. Checked from the monitoring software, the CPU usage is high. 1 Catalyst 3850 Series Switch High CPU Usage Troubleshoot Document ID: Contributed by Aninda Chatterjee and Yogesh Ramdoss, Cisco TAC Engineers. 2(53)SE. Download. In general, the larger the Layer 2 or Layer 3 network, the greater the demand on the CPU to process network-related traffic. ePub - Complete Book (2. action 0. 6. 03. 6. EN US. 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。. There were heaps of logs like below: 4801: Alternate Pool: None Free: 0 Cause: No Alternate pool. High end routers (7000, 7500 series) have their buffers in main dynamic random-access memory (DRAM),. 3. Passaggio 4: Utilizzare la traccia FED. x (Catalyst 3850 Switches) Chapter Title. We have a high CPU utilization for the past one week and I am trying to find the reason. This command would also list the processes as shown below but it would not add up to 100%. show process cpu sorted | ex 0. Cisco 버그 ID CSCup49704 - 3850 FED 충돌. 07-08-2015 12:38 PM - edited 03-08-2019 12:53 AM. 9. type . Runtime(us) CPU time that the process has used (in microseconds). 06. ) 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. The other cpu core are fine at below 20% utilization. We tried disabling ip dhcp snooping on user VLANs and adding deny all rule for ipv6 but nothing helps. VACL input and output ACEs are stored in a single region (TAQ). switch#sh proc cpu detailed process fed sorted | ex 0. 33 4. 4, targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. The show process cpu command is used in order to display the current process state inside of the IOSd daemon. show platform software fed switch active cpu-interface queue retrieved dropped invalid hol-block-----High rate app 994752082 994752082 0 0. If the option is #2, it would be highly recommendable if the switch can be COLD reboot. 4, and 16. Step 1. uSecs . 4800: Pool: Processor Free: 1598872 Cause: Memory fragmentation. 1a 23/Nov/2017. Cisco StackWise Virtual is supported only on the following Cisco Catalyst 3850 Series Switch models. show processes cpu sort | exclude 0. However, due to the differences in architecture and forwarding mechanisms between. 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. 96 29. 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. 01 2. 5b without a noticeable change in CPU levels. The Cisco Catalyst 3850 Series Switches support dual redundant power supplies. 109. Please help to resolve the issue. Stack Manager and High Availability Commands. E. Buy or Renew. Usage Guidelines. 65% 0 SNMP ENGINEThe stack cable could need to be replaced. Book Title. Community. Known Affected Release. Check that the CPU utilization is not too high. xE releases as well as Cisco IOS XE Denali16. Is that's not possible, then traffic is punted to the Control Plane/CPU so it can be processed . txt" action 0. System returned to ROM by Critical process fed fault on fp_0_0 (rc=139) System image file is "flash:packages. primarily due to interrupts, on the new Cisco IOS®-XE platform. 2. Étape 3 : Videz le paquet envoyé au processeur. 12. See full list on cisco. Schritt 3: Verwerfen Sie das an die CPU gesendete Paket. Options. We have a 3850 switch running version 03. Beginner. This command would also list the processes as shown below but it would not add up to 100%. 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 types of. The issue is that the CPU seems to only get to 99% when you get months into the reboot/reload, so it's hard to troubleshoot then and there. show platform health. The output (Cisco IOSd® CPU output) shows that ARP Snoop, IP Host Track Process, and ARP Input are high. 例: Cat9300#show platform software fed active punt cpuq all Punt CPU Q Statistics ===== CPU Q Id : 0 CPU Q Name. x 20/Aug/2020. Just swapped a failing 2960X with a 3850 and have high CPU (fed main event and linux_iosd-image . We have been able to investigate which port is driving the high cpu. 10-21-2013 01:50 PM - edited 03-07-2019 04:09 PM. PDF - Complete Book (8. ' As the script collects data, it increases CPU utilization. 96 29. The Cisco Catalyst 3850 Series Switch has a number of queues that cater to di erent types of. 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. We pulled the same config from the 2960X. Type of process; can be either IOS or POSIX. If the IP input process uses unusually high CPU resources, the router is process-switching a lot of IP traffic. X or 3. 00SE. Importers, exporters, distributors and users are responsible forCisco Catalyst 2960-X Series Switches, Cisco Catalyst 2900XL Software. High CPU Usage Caused by Process or TrafficHigh end routers (7000, 7500 series) have their buffers in main dynamic random-access memory (DRAM),. 252572 2730335 0 0. IOS is 16. The new boot loader can support booting both Cisco IOS XE 3. WS-C3850-12XS-S. I have a couple of 3850/3650 that are dropping traffic punted to the CPU. I have been working with TAC for almost a year on this issue. We have two 24 port 3850 switches stacked. #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. 33%. 8. 6. x (Catalyst 3850 Switches). 0 Core 0: CPU utilization for five seconds: 53%; one minute: 39%; five minutes: 41% Core 1: CPU. Issue is happening only on working hours, so likely that connected to user activity. RSS フィードを購読する. When you get the new switch, make sure to monitor the CPU and memory for a few weeks to make they are working as. Switch_1# sh processes cpu platform sorted location switch 1 R0 | in fman. Passaggio 2: Determinare la coda di CPU che causa la condizione di utilizzo elevato della CPU. Run show platform software status control-processor brief in order to check the. Traffic that exceeds the default 600 packet per second rate in the CoPP policy is dropped before it reaches the CPU. Cisco Moderador. 49 does not. 9. - Update both Power Supplies and RPS. High CPU WS-C3850-48T. The title says "3750" but the screenshots look like 3650/3850. I am monitoring this device's CPU with Prime Infrastructure 3. 73 26. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 6032 889844 24282930 618 25. Conditions: The is seen in 12. ST3-Stack1-3850#sho proc cpu sort | e 0. These are all different software techniques, with different performance in terms of the maximum number of packets that can be routed per second. Thanks, Tom . Mostly, if you set up the SNMP correctly the IOS will "SLOWLY" release the CPU/Memory. Switch# show processes cpu sorted. 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 |. 97 26. 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. Core 0: CPU utilization for five seconds: 12%; one minute: 13%; five minutes: 17%. 1. Additionally, the. Contacts; Feedback; Help; Site Map; Terms & Conditions; Privacy Statement; Cookie Policy; TrademarksContacts; Feedback; Help; Site Map; Terms & Conditions; Privacy Statement; Cookie Policy; TrademarksMonitor High CPU via SNMP OID. Look at the spanning tree instance details ('sh span det' or something to that effect). 04. BRM_HQ_CSW_01#sh proc cpu sort. 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. 86 0 iosd . PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process . 5E/3. A Catalyst 3850-24P runs IOS-XE 3. 7. Task . Core 1: CPU utilization for five seconds: 34%; one minute: 14%; five minutes: 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. The high CPU utilization is caused by constantly recalculating paths. 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. Hi all, i need help with sorting out CPU utilization. Stack Manager and High Availability. If I do not run this com. 3. . We've encountered high CPU utilization issue on our 2x3650 stack. 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). 1900 <-- Your system MAC address. conf" Last reload reason: Critical process fed fault on fp_0_0 (rc=139)Go to Cisco r/Cisco. Command Reference, Cisco IOS XE Fuji 16. This command initiates a graceful switchover from the active to the standby switch. Polling certain MIBs. 0(1)EZThrough our monitoring system we saw an peak in the CPU usage on one of our C3850 switch stacks. 72 1. 5 cli command "show platform punt statistics port-asic 0 cpuq -1 direction rx | append nvram:. 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). 5sec 1min 5min Process. IOSd resides at the control. Identify the Process that Consumes CPU Cycles Step 2. For example, sometimes you can have a 3750 CPU problem caused by using the "wrong" SDM template. If the problem is replicated, go to step 2. - Set Main LED and ports LEDs. Cisco shows fed (PunjectRx and Xcvr) process is mostly consuming the CPU. Del comando show process cpu las visualizaciones naturalmente cómo el CPU mira actualmente. 3. So, most likely a hardware issue. 00 4. I performed the platform packet capture and it's indeed a lot of ARP Requests being spammed. Average CPU is not really high, between 40% and 50%. 6 we are facing the high CPU usage. IP Redirects with CoPP Case Study 3. If only one power supply is installed, it should always be in power supply bay 1. 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. the 'iosd' and 'fed' processes are high, which usually means high interrupts. Cisco Public 34. Core 0: CPU utilization for five seconds: 96%; one minute: 96%; five minutes: 96%. 7. 6. clear socket PID. 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. 97 1088 fed 9926 3902102 37182712 364 8. Étape 2 : Déterminez la file d'attente du processeur qui entraîne la condition d'utilisation élevée du processeur. 6, haven't seen any related bugs for this version. 01 26. Options. Please see the output from sho platform software fed switch active cpu-interface. Please advise. 71 29. 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. 00 Core 0: CPU utilization for five seconds:. Switch firmware is 16. I recently upgraded a switch stack from 03. 19145 17642 0% 0% 0% S 296591360 fman_fp_image. X then this is due to a well-known bug: CSCuo14511. Book Title. 7 recently. 9. 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). I was struggling with high CPU utilization problems happening on the distribution switch. I am facing high CPU utilization with 3850 switch. - Update Fan status. 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。. 01 2. 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. Cisco Catalyst 3850 Series Switches also support full IEEE 802. 6. Its definitly some kind of bug, disable dhcp snooping is our solution, but that wasnt the question. 1. Is it the version 16. I have been investigating some high CPU usage on our 3850s. 4E or Earlier Might Exhibit High CPU Usage FN - 70110 - Memory Leak Issue on C3850/C3650 Switches That Run Polaris Software Version 16. 這些隊列. 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. Stack Manager and High Availability Configuration Guide, Cisco IOS XE Fuji 16. 7. 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%. Use the show ipx interface command if IPX fast-switching is disabled. Options. 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. High CPU 0 - Cisco Catalyst 3850 Posted by Paul-CoA on Dec 13th, 2016 at 8:53 AM Cisco We have noticed with firmware version 3. CSCsi78581 Hulc LED Process uses 10-15% CPU on Catalyst 3750/3560. 33 4. An E-series Catalyst 4500 switch configured with RSPAN might display high CPU utilization during the host learning process. 93 26. I have already found out that the high core usage is only happening on switch 1. DC1#show process cpu detail process fed sorted | ex 0. 6. I canget a # enable prompt but after 15-20seconds this is what occurs: Mar 31 17:58:42. ping form switch: c3560#ping 10. 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. Dumps all the packets sent to the different CPU queues and possible drops. • IOSd runs as process on kernel-> linux_iosd-image • Not all processes run on all switches Switch_1#sh processes cpu platform sorted location switch 1 R0 | in fman 27777 26990 0% 0% 0% S 314179584 fman_rp 19145 17642 0% 0% 0% S 296591360 fman_fp_image Switch_1#sh processes cpu platform sorted location switch 3 R0 | in fmanCisco Catalyst 3850 Stackable 24 10/100/1000 Ethernet ports, with 350-WAC power supply 1 RU, LAN Base feature set (StackPower cables must be purchased separately). 4 cli command "show process cpu detailed process sorted | nvram:. We have (11) 3850's; 2 are stacked and 9 standalone. A system-report can be generated when the switch is reloaded by stack manager, a process crash has occurred, or manually generated by the user during live operation. -High cpu being caused by looped packet and/or dhcp ack dropping. 1. 3. 83 1088 fed 5637 968593 64678942 1101 24. Any recommendation for new stable IOS please. Cisco 내부 정보 SR 680000139(High CPU)의 증상도 이러한 유형의 문제를 유발하는 것으로 나타났습니다. 42 1088 fed 6258 3292482 92102444 4593 23. Hello, I have a Cisco 3850 stack with 2 switches, 3. 33% 0 SNMP ENGINEI have VSS running on 2 cisco WS-C4506-E. BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 1. 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. no issue getting IP address. RegardsThe CPU is so high but there is any process consuming the CPU as you can see bellow. 0 show proc cpu sorted | ex. The nagios reports the following message: "cisco_load | CPU: 99 99 99 : 99 > 98". 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. A buffer leak occurs when the code forgets to process a buffer or. NCM is reporting lower CPU for our 3850 & 3650 switches. 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. This is the output from the command show processes cpu sorted. Switch Ports Model Serial No. 1. Invoked . Darüber hinaus werden in diesem Dokument verschiedene neue. 3 74. In Cisco IOS XE Release 3. Identify the Process that Consumes CPU Cycles Step 2. 4) Prior to CSCuu14019, interfaces won't display "output drop" counters. Es importante monitorear estas colas para descubrir qué paquetes se envían a la CPU y cuáles son procesados por Cisco IOSd®. 00 4. Now CPU processing of the stack is very high and it causes the packet loss. I have found that the delay is so high when I telnet 10. 排除CPU使用率过高故障. 66 2. Schritt 3: Verwerfen Sie das an die CPU gesendete Paket. 5 CAT3K_CAA-UNIVERSALK9 INSTALL. Beginner. Cisco IOS Software refers to the single bundled Cisco IOS image for both the Supervisor Engine and Multilayer Switch Feature Card (MSFC) module. 1. 00 CPU utilization for. we had an alert through for a sustained period of high cpu usage, upon investigation we observed the following. Esempio di script EEM (Embedded Event Manager) per gli switch Cisco Catalyst serie 3850. Microseconds of CPU time for each. Number of times that the process has been invoked. 手順2：高いCPU使用率を引き起こすCPUキューを判別する. Am currently looking into high cpu figures on one of our 3850 switches the model is WS-C3850-24P running 03. High CPU Usage on 3850 Go to solution. E cat3k_caa-universalk9 INSTALL. Switch # redundancy force-switchover System configuration has been modified. In that file, there is another file called "sw-core_1_RP_0_fed_17777_20190923-010852-Kras. 10#sh platform tcam uti. x and 16. - If the switch supports POE, it checks to see if there is a Power Device (PD) detected. 39 0 pdsd 8581 3259771 25430981 187 2. 72% Switch #2 (the ironic thing is that this switch is a hot spare and has nothing plugged into it) stack-mgr = 32. xxxx being punted to CPU. 79% Replenish OOB = 16. This command initiates a graceful switchover from the active to the standby switch. CPU utilization of the process in minutes and seconds. 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%. 9 show processes cpu platform sorted CPU utilization for five seconds: 64%, one minute: 62%, five minutes: 63%. 80. Core 1: CPU utilization for five seconds: 18%; one minute: 24%; five minutes: 28%We have one Catalyat 3850 switch with High CPU utilization. 12. 91% 84. Mark as New; Bookmark; Subscribe; Mute;. Monitor High CPU via SNMP OID. 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. Seeing the same issue on a 3850 stack. Wondering why the IOSXE-RP Punt Se process is fairly high on our SDA border nodes. . Chinese; EN US; French; Japanese; Korean; Portuguese; Log InCİSCO 3650 - 3850 HIGH CPU KAAN ÖZDERE 27 Kasım. 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 . System returned to ROM by Power Failure. 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. I completely understand the 24x7 operation but in some cases like th. ARP Requests from Apple Devices High CPU. Issue is happening only on working hours, so likely that connected to user activity.