Questions tagged [cpu]
For questions about CPU in relation to networking and network devices. For instance, you are troubleshooting high CPU load on your Nexus switch.
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TCAM relationships in hardware-switching architecture
I am familiar (high level) with how Ternary Content Addressable Memory operates but I remain confused as to how TCAM relates to ASICs and when these components possibly also combine with the CPU for ...
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Cisco Nexus 3064PQ CPU spike causing packetloss
Nexus 3064 CPU spike and packetloss
I have L3 Cisco 3064PQ switch which is running latest "nxos.7.0.3.I4.7.bin" basically I am using for routing so my ISP 2x10Gbps link terminated (with LACP) on ...
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What kind of CPU do managed switches have?
Do managed switches have regular x86 CPUs? Do they have proprietary CPUs? Or other types of processors like PowerPC processors or others?
Is it possible to find out what type or model of CPU is ...
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What's the difference between the Three Families of Fortinet SPUs?
Why Fortinet name their CPU's like: NETWORK PROCESSOR 7 (NP7), CONTENT PROCESSOR 9 (CP9) and SECURITY PROCESSING UNIT (SP5).
What's the difference between them?
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6807XL CPU process stuck at 25 / 30 %
I've recently installed a new 6807XL Chassis in VSS in my datacenter.
After 3 weeks, I keep seeing the CPU usage around 25% (per second, per minute or per five minutes). Looking at the historical ...
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Searching in TCAM vs RAM
I understand the higher level of TCAM and how it differs from CAM and also RAM. My question is from the architectural point of view. I've read that TCAM search is really faster than RAM due to the ...
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High CPU utilization on Juniper ACX2100 chassis fpc
What is the cause of high utilization of cpu on fpc.Below is the output of which depicts utilization as 99 but router is running just fine.
show chassis fpc
Temp CPU ...
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On a Layer 3 switch, what part does the CPU play in forwarding packets?
I am a Systems Administrator at a small firm. We are latency sensitive. When forwarding packets, what protocols use the CPU and which use the ASICs?
We have mostly Arista 7124's (for the most latency ...
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Cisco Aironet 1142 - CPU stuck at 100% utilization
I have a Cisco Aironet 1142 (AIR-LAP1142N-A-K9) running autonomous firmware (c1140-k9w7-mx.153-3.JBB1) which started frequently rebooting it self today due to watchdog timeouts. I've checked sh proc ...
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HP ProCurve CPU at 100% for 20 minutes after reboot [duplicate]
I have a little concern regarding HP Procurve switches. I am monitoring an important number of HP switches, and I observed that after the reboot, few seconds later CPU usage raised up to 100% and ...
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How much CPU power does it take to process a packet? [closed]
Had a debate with a friend on CPU requirements for networking. I'm not a network engineer, but my understanding is that minimal CPU processing happens for IPv4 network traffic and that it's mostly ...
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What components of a network switch qualify as ASICs?
While studying for CCNA, I came across the information that in a network device, say a switch, the CPU is responsible for the control and management planes work, while the actual data forwarding is ...
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Nexus 3064 strange CPU utilization
My SNMP monitoring showing Nexus 3064 switch CPU utilization 20%
But on switch cpu history showing 72 Hour maximum CPU%, is this normal?
# show proc cpu history
1 1 11 1 1 11 111 11 ...
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Why are DNS packets processed by process-switched?
I have a question.
Equipment: Cisco 2821
CEF is enabled on all router ports:
sh ip interface | i CEF
Post encapsulation features: CEF Packet Capture
IP CEF switching is enabled
IP CEF ...
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Does HUB has calculation function?
We know the HUB broadcast the frames. I have a question, does it have a CPU for calculate something?
the Switch have MAC address table, then we can know it have calculate function for record MAC ...
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Cisco CPU utilization threshold violation traps
I enabled SNMP and Traps on a cisco router and I used snmp-server enable traps cpu threshold command in configuration mode.
I configured LinkUp-Down Traps with snmp-server enable traps snmp linkup ...
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Are different clock rates affecting the transfer-rate? [closed]
I have to kinds of IoT-devices, which should communicate over TCP and sharing files with each others.
IoT-device of type 1 has 240 MHz.
IoT-device of type 2 has 160 MHz.
Now I have observed the ...
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Cisco ASR1006 ESP40 high CPU utilization
We have ASR1006 with ASR1000-ESP40 and it seems strange on our SNMP monitoring its showing Max CPU utilization 70% and avg 35% but when i check on command line numbers are totally different, what is ...
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Why can the hypervisor not see RAM utilization? [closed]
On AWS, I noticed that their CloudWatch tool cannot see memory utilization of EC2 instances. I can, on the other hand, see CPU utilization, network metrics, etc.
Why is it that a hypervisor can see ...
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FPC ACX2100 high CPU (99%)
I have an ACX2100 with high CPU usage in all FPCs.
juniper@ME-CSR-HNI_CGY-C100.1> show chassis fpc
Temp CPU Utilization (%) Memory Utilization (%)
Slot State (...
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EVE-NG doesn't run any nodes other than VPC and vIOS devices
I'm running a Community edition of EVE-NG on a nested virtualization setup but cannot run any of the "real" images in the lab. It's just the virtual PCs and Cisco vIOS devices that seem to ...
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HighCPU-Power RPS Process
By chance no one encountered such a problem, periodically due to the "Power RPS Process" process, the processor is very heavily loaded,accordingly, I constantly receive alerts about a high ...
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What is making switch CPU so busy that it's unable to respond with ICMP errors?
According to How to prioritize ICMP time exceeded packets my switch is dropping ICMP error replies because the CPU is apparently too busy.
It is a PowerConnect 7048 and it dropping anywhere between 5% ...
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