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Troubleshooting High CPU Utilization on Cisco Routers
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This document describes common symptoms and causes of high CPU utilization on Cisco routers, and provides troubleshooting guidelines and solutions.
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www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a00800a70f2.shtml
24 Jul 2008
This document explains how to troubleshoot high CPU utilization in a router due to the HyBridge Input process. ATM interfaces can support a large number of permanent virtual circuits (PVCs) configured to use request for comments (RFC) 1483 bridged-format protocol data...
www.cisco.com/en/US/tech/tk39/tk371/technologies_tech_note09186a0080093c91.shtml
05 Jun 2005
This document explains how to troubleshoot high CPU utilization due to the IP input process.
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www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2af3.shtml
02 Aug 2006
This document describes causes of high CPU utilization on the Cisco Catalyst 3750 Series Switches. Similar to Cisco routers, switches use the show processes cpu command in order to show CPU utilization to identify the causes of high...
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www.cisco.com/en/US/products/hw/switches/ps5023/products_tech_note09186a00807213f5.shtml
26 Jun 2009
This document describes causes of high CPU utilization on Cisco Catalyst 6500/6000 Series Switches and Virtual Switching System (VSS) 1440 based systems.
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86
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www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a00804916e0.shtml
27 Aug 2012
This document explains the reasons for high CPU utilization due to interrupts, and provides troubleshooting tips and guidelines.
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104
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www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2af0.shtml
29 May 2008
This document explains how to troubleshoot high CPU utilization in a router due to the SNMP ENGINE process running in the router, especially in low end routers.
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129
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www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a00800948e6.shtml
28 Jun 2006
This document describes how to troubleshoot high CPU utilization caused by different processes.
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www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2af6.shtml
29 Sep 2008
This document explains why a Cisco IOS router may experience high CPU utilization due to either the Border Gateway Protocol (BGP) router process or the BGP scanner process, as shown in the output of the show process cpu command. The duration of the high...
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36
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www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00809d16f0.shtml
25 Jul 2008
The Catalyst 4500 series switches, which includes the Catalyst 4948 switches, has a sophisticated packet-handling methodology for CPU-bound traffic. A commonly perceived problem is high CPU utilization on these switches. This document provides details about the CPU...
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140
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www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00804cef15.shtml
20 Mar 2008
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