Introduction

Now Cisco had integrated BNG feature to XRv9000 platform in new version (from 631), that can let customer integrade the feature in their NFVI Infrastructure, that will flexible deploy the BNG in same Server Box. And the article will set up a simple vBNG environment that build by VIRL + XRv9000, and simple test IPoE/PPPoE. That environment will help you to easy TS vBNG PI issue, and packets paths.

Prerequisites

Introduction

Now more customer complains their Peering network not flexible and hard to control, that will cause peering link’s utilization not balance and waste of resources. As follow the example on Router-2, customer peering device connect to multi ISP, each ISP sends full internet route, select only based on the BGP. BGP select rule only based on the route but not real traffics, that may be cause port-A’s traffics have 8G, but port-B and port-C only have 4G, if want to adjust BGP select, only change RPL that more complex, and due to route from internet and multi ISP, so route maybe change at some time, in order to balance peering link, customer must continue to adjust their RPL.

Could we have more flexible and simplest way to resolve the issue? The answer is Yes 🙂 we can achieve the task by Segment Routing – Egress Peer Engineering. Now some customer had deployed the solution, that combine NetFlow, Openbmp to check AS/traffics of prefix, then send BGP LU(EPE label) to ingress node, and easy to control traffics.

完整阅读

Introduction

I installed the WAE 6.4.5 at formal and summaried to Blog, e.g: INSTALL CISCO WAE 6.4.5. After 7.0, install/config have big change and similar with NSO that easy/module to deploy. For this article, only talk about how to install and enable.

Auto source profile

Similar with NSO, add “source” command to “.bash_profile” that in MacOS. That will let you direct to login to WAE but not do “source wae711/waerc”, as follow:

[root@frank ~]# echo "source /opt/wae711/waerc" >> .bash_profile
[root@frank ~]# more .bash_profile | grep wae
source /opt/wae711/waerc

完整阅读

版本不同，特性开启的方式会稍有不同。下面Tips更新时间也不相同，所以需要根据自己版本进行尝试，下面最新的更新版本是Monterey，12.0.1；

开启三指拖拽

System Preferences -> Accessibility -> Mouse & Trackpad -> Trackpad Options -> Enable dragging -> three finger drag

鼠标触控激活屏保并立即锁屏

System Preferences -> Desktop & Screen Saver -> Hot corners -> choose one corner and choose “Start Screen Saver”

解决windows10在fusion中分辨率的问题

1. 在fusion的setting中启动Retina 显示，并开启自动调整
2. 在win10中安装Vmware tools
3. 在win10的Display中，选择高级scaling setting，打开“let windows try to fix apps ……”

部署虚拟开发环境

虽然自己不是软件工程师，但有时候为了测试会写一些小程序，所以常常需要在自己电脑上设置开发环境。由于MacOS原生支持Python，所以我们可以不用那么麻烦的设置开发环境。但为了系统的稳定性，还是不要随便增加或变更自带的python，所以开发环境直接用虚拟环境就可以了，大概构架如下：