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2021-03-11
2021-04-04
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[350-401]Impact of log configure commands

Question A system administrator enabled Syslog and executes the following command on the router. Which syslog levels will be affected? router(config)#logging rate-limit 500 except 3 Log transmission is limited to 500 messages per minute, except for the emergency log level only. Log transmission is limited to 500 messages per second, except for log levels 3 only. Log transmission is limited to 500 messages per second, except for the error log level through the emergency log level. Log transmission is limited to 500 messages per minute, except for the error log level only. Log transmission is limited to 500 messages per second, except for the emergency log level only. See Answer ③ Commentary logging rate-limit command This command allows you to rate limit the number of logs generated on the device. It is very effective in an environment where a large amount of logs are generated, and the effect on the CPU load of the router can be mitigated. In addition, since it is possible to reduce the number of logs sent to the Syslog server as in this case, it is possible to secure the bandwidth of the network environment. Router(config)#logging rate-limit ? <1-10000> Messages per second all Rate […]

[350-401]Impact of logging commands

Question The administrator enabled Syslog and set the following command on the router: What is the impact at the Syslog level? router(config)#logging rate-limit 500 except 3 Log submissions are limited to 500 per minute, and only the efficiency log level is not sent. Log submissions are limited to 500 per second and only log level 3 is not sent. Log submissions are limited to 500 per second and are not sent from the emergeency log level to the error log level. Log submissions are limited to 500 per minute and error log levels are not sent. Log submissions are limited to 500 per second, and only the efficiency log level is not sent. See answers (3) Commentary Giving rate-limit command This command can rate-limit the number of logs generated on the device. It is very effective in environments where large amounts of logs are generated, and the impact on the CPU load of the router can be mitigated. In addition, since it is possible to reduce the number of log transmissions to the Syslog server as in this time, it is possible to secure bandwidth in the [all / console]network environment. you can choose to adapt the restrictions to all […]

How to check the feature list for each product / OS of Cisco Wireless

There are two types of OS such as Aire OS and IOS XE for Wireless products of Cisco, and there are various management forms such as Cisco 〇〇 series and Catalyst series in WLC (Wireless Lan Controller). There are Autonomous, Lightweight, CME, EWC, etc. in AP mode, which are very complicated to introduce. Of course, there will be a “difference” in the functions that can be used depending on the AP mode and OS. To be honest, I want you to unify. I think this is to enable flexible introduction / proposal in various environments. You can easily check the list of functions by these modes and OS in “Feature Matrix” published by Cisco. Feature Matrix for Access Point First, let’s take a look at the official Cisco website <Feature Matrix for Wave 2 and 802.11ax (Wi-Fi 6) Access Points>. How to See From the “Table of Contents”, first click on the OS and mode you plan to install / use to scroll the page to the list of each function. For example, if you want to use it in FlexConnect mode with Lightweight, see “FlexConnect Feature Matrix (Aire OS)”. The leftmost column, “Features,” lists common wireless features and Cisco […]