https://imxing.info/tags/monitoring/ Recent content in Monitoring on Rory's Blog Hugo -- gohugo.io en © 2026 Mon, 20 Oct 2025 14:06:10 +0800 https://imxing.info/blog/netflow-nfdump/ Mon, 20 Oct 2025 14:06:10 +0800 https://imxing.info/blog/netflow-nfdump/ 在网络运维里， SNMP 通常被用来采集接口流量速率, 除此之外还有一个可以反映接口速率的 feature-Netflow. https://imxing.info/blog/cisco-sdwan-cflow/ Mon, 17 Feb 2025 21:26:40 +0800 https://imxing.info/blog/cisco-sdwan-cflow/ 测试环境 # vManage: 20. https://imxing.info/blog/show-interface-show-policy-map/ Tue, 14 Feb 2023 00:00:00 +0000 https://imxing.info/blog/show-interface-show-policy-map/ comments by ‘zhihua’ https://imxing.info/blog/ios-xr-syslog-messages-sent-to-syslog-servers-format/ Fri, 15 Apr 2022 00:00:00 +0000 https://imxing.info/blog/ios-xr-syslog-messages-sent-to-syslog-servers-format/ In general, the structure of the syslog messages generated by IOS-XR has the following format: https://imxing.info/blog/twamp-and-twamp-light/ Thu, 14 Apr 2022 00:00:00 +0000 https://imxing.info/blog/twamp-and-twamp-light/ TWAMP（Two-Way Active Measurement Protocol，双向主动测量协议）是一种用于 IP 链路的网络质量测量技术，它使用 UDP 报文测量网络双向路径时延、抖动及丢包率。TWAMP-light 是 TWAMP 协议的轻量级架构，简化了建立性能测量会话的控制协议，提高了测试性能。 https://imxing.info/blog/bgp-bmp/ Thu, 29 Jul 2021 00:00:00 +0000 https://imxing.info/blog/bgp-bmp/ BGP 监控协议 BGP Monitoring Protocol（BMP）能够对网络中的设备的 BGP 运行状态进行实时监控，BGP 运行状态包括对等体关系的建立与解除、路由信息刷新等。 https://imxing.info/blog/new-feature-for-pam/ Sun, 25 Apr 2021 00:00:00 +0000 https://imxing.info/blog/new-feature-for-pam/ PAM（Platform Automated Monitoring），从 6. https://imxing.info/blog/setup-syslog-server-on-centos-7/ Sun, 08 Nov 2020 00:00:00 +0000 https://imxing.info/blog/setup-syslog-server-on-centos-7/ 由于测试，需要安装一个 syslog server， Windows 上的免费软件搜到了 KIWI Syslog Server，但是需要注册，然后还得去等两天的审核，想想还是算了不折腾了，打算在 Linux 上装一个，还好过滤看 log。 https://imxing.info/blog/telemetry-simple-configuration-in-cisco-xr-devices/ Fri, 27 Dec 2019 00:00:00 +0000 https://imxing.info/blog/telemetry-simple-configuration-in-cisco-xr-devices/ Telemetry 是一种类似 SNMP 技术的 feature，用于远程采集网络设备上相关信息。与 SNMP 不同的是，SNMP 是 Pull Mode，需要 server 端主动的要求 Get 某些信息，而 Telemetry 则是一种 Push Mode，可以周期性、主动的 push 相关信息到 server 上。SNMP 是秒级的数据采集， 而 Telemetry 可以实现毫秒级的数据采集. https://imxing.info/blog/iox-neflow-configuration-example/ Thu, 10 Oct 2019 00:00:00 +0000 https://imxing.info/blog/iox-neflow-configuration-example/ sampler-map # sampler-map FNF_SAMPLER_MAP random 1 out-of 4999 exporter-map # flow exporter-map FNF_EXPORT_MAP version v9 options sampler-table timeout 60 template timeout 60 ! https://imxing.info/blog/some-commonly-used-oids/ Fri, 04 Oct 2019 00:00:00 +0000 https://imxing.info/blog/some-commonly-used-oids/ This artical will recording some commonly used OIDs, like memory usege,interface counters.