PS：视频在油管上，需要搭梯子……

Summary intros session, and there are two separate demo sessions to deep dive, as follow:

完整阅读

The article should applies to all eXR platform, include ASR9k, Cisco8000, NCS5500, NCS6k. The output information maybe different by diff platform, but the iPXE method should same. Btw in eXR, if you want to recovery password, will require iPXE.

Enable HTTP Service at linux

[root@nso exr]# python -m SimpleHTTPServer
Serving HTTP on 0.0.0.0 port 8000 ...

完整阅读

I put a telemetry demo to youtube at last year, but no more time summary… now I summaried in the article, will help you to easy build up the solution. Due to original testbed had changed, so follow some info maybe change, but all procedure should same. And XR configuration file is original. Demo video at this link:

Install Grafana and Influxdb by Docker

docker run -d -v grafana-storage:/var/lib/grafana -p 3000:3000 grafana/grafana:5.4.3
docker run -d --volume=/opt/influxdb:/data -p 8080:8083 -p 8086:8086 tutum/influxdb

Install Pipeline

git clone https://github.com/cisco/bigmuddy-network-telemetry-pipeline.git

Config Pipeline

完整阅读

Install Desktop Gnome

root@server-test:/opt# apt-get install -y ubuntu-desktop

Install/Config TigerVNC

root@server-test:/opt# apt -y install tigervnc-standalone-server
......
root@server-test:/opt# vncpasswd
Password:
Verify:
Would you like to enter a view-only password (y/n)? n
root@server-test:~# more /root/.vnc/xstartup
# create new (or add to the end)
exec /usr/bin/gnome-session &
# start with diplay number [1], screen resolution [800x600]
root@server-test:~# 
root@server-test:~# vncserver :1 -geometry 800x600 -localhost no

New 'gcsprendpoint-yonzhao2test-share-flat2-ni9ngm-server-ne.novalocal:1 (root)' desktop at :1 on machine gcsprendpoint-yonzhao2test-share-flat2-ni9ngm-server-ne.novalocal

Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/gcsprendpoint-yonzhao2test-share-flat2-ni9ngm-server-ne.novalocal:1.log

Use xtigervncviewer -SecurityTypes VncAuth,TLSVnc -passwd /root/.vnc/passwd gcsprendpoint-yonzhao2test-share-flat2-ni9ngm-server-ne.novalocal:1 to connect to the VNC server.

Access by TigerVNC Client

Other

2020-07-24 Update: Change to TightVNC

I found an issue that cannot input anything when login via tigerVNC, normal user is ok after disable screen auto clock, but root couldn’t login in. So I transfer to TightVNC that work perfect now. Follow install guide:

How to Install and Configure VNC on Ubuntu 20.04

问题及解决

根据如下拓扑，用iphone和ipad查看nas的高清资源总是卡，低于5mbps码率的资源没问题，当网线连接时，50mbps码率的视频也没问题，所以严重怀疑wifi出了问题，但又不好查哪里的问题，我在AppStore上找了一圈，也没有一个像样的wifi 分析软件，即使收费也能接受呀。。。

Iphone/Ipad — <wifi 5g> — wrt1200ac —<GE>—918+

问题现在已经解决了，由于我的wrt1200ac刷的是OpenWRT，开源的wifi驱动不稳定，导致时不时的卡。我在918+上部署了docker版本的speedtest，从iphone/ipad上测试了下tcp性能，发现测不出问题，速率都挺正常（只给最终结果，无法显示平均还是最大），如下：

完整阅读