Dell Force10 E1200i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 387
Hot-lock Behavior, Core Dumps, System Log
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Core Dumps A core dump is the contents of RAM being used by a program at the time of a software exception and is used to identify the cause of the exception. There are two types of core dumps, application and kernel. • The kernel is the central component of an operating system that manages system processors and memory allocation and makes these facilities available to applications. A kernel core dump is the contents of the memory in use by the kernel at the time of an exception. • An application core dump is the contents of the memory allocated to a failed application at the time of an exception. System Log Event messages provide system administrators diagnostics and auditing information. FTOS sends event messages to the internal buffer, all terminal lines, the console, and optionally to a syslog server. For more information on event messages and configurable options, refer to Chapter 6, System Management. Hot-lock Behavior FTOS Hot-lock features allow you to append and delete their corresponding CAM entries dynamically without disrupting traffic. Existing entries are simply are shuffled to accommodate new entries. FTOS offers the following Hot-lock features: • Hot-lock IP ACLs (supported on E-Series, C-Series, and S-Series) allow you to append rules to and delete rules from an Access Control List that is already written to CAM. This behavior is enabled by default and is available for both standard and extended ACLs on ingress and egress. For information on configuring ACLs, refer to the IP Access Control Lists (ACL), Prefix Lists, and Route-maps chapter. • Hot-lock PBR (supported on E-Series only) allows you to append rules to and delete rules from a redirect list that is already written to CAM without disrupting traffic. This behavior is enabled by default. For information on configuring Policy-based Routing, refer to the Policy-based Routing chapter. High Availability | 387
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