Cisco IOS itself runs as a daemon within the Linux OS (IOSd). All of the subsystems that were inside Cisco IOS before - such as the modules drivers, High Availability (HA), and so on - now run as software processes within the Linux Operating System (OS). With Cisco IOS -XE, Cisco has moved to a Linux kernel and all of the subsystems have been broken down into processes. Background Information It is important to understand how Cisco IOS -XE is built. Additionally, this document introduces several new commands on this platform that are integral in order to troubleshoot such problems.
#CISCO IOS XE PUNT RX FORUS ADDR RESO CTRL HOW TO#
Intermittent High CPU Related Information Introduction This document describes how to troubleshoot high CPU usage concerns, primarily due to interrupts, on the new Cisco IOS -XE platforms that run 16.x releases (also referred to as Polaris). Investigate Why FED is Punting Packets to the Control Plane Case Study 2. Identify the Process that Consumes CPU Cycles Step 2. Address Resolution Protocol Interrupts Step 1.
1 Troubleshoot High CPU Usage in Catalyst Switch Platforms Running IOS-XE 16.x Contents Introduction Background Information Case Study 1.