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标签为 ‘Linux’的文章

Cisco 网络自动化展示

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:

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Deploy TRex in Centos7.4

TRex based on DPDK, have high performance for traffics generator scenario. TRex has two deployment scenarios, one is Stateless mode, another is Server/client mode. How different for them? As follow pic. Btw, TRex has a GUI tool that can easy config traffic pattern, but that only support in Stateless mode. For Server/Client mode, only CLI (you can reference “Linux SRv6实战 (第三篇) 多云环境下Overlay(VPP) 和Underlay整合测试 ” that use Server/Client mode). For the article, only focus on stateless mode and GUI tool.

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Deploy OpenVPN on OpenWRT

My VPS(Bandwagon) include OpenVPN script, but only support Centos6.x that version not good for docker (my blog deploy by docker Blog顺利完成搬家之Bandwagonhost VPS), so need to do by other scripts. OpenWRT config OpenVPN client has some different, so summary the info to the article for review.

But due to GFW, OpenVPN couldn’t establish at last, reset happened between server and client, but the setup should workable.

Deploy OpenVPN at Server

Don’t know why couldn’t find OpenVPN pacakage by yum, even if have epel source

[root@frank ~]# rpm -qa |grep epel
epel-release-7-11.noarch
[root@frank ~]# yum install openvpn
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.usc.edu
 * extras: repos.lax.quadranet.com
 * updates: mirror.fileplanet.com
No package openvpn available.
Error: Nothing to do
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vBNG on XRv 9000

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

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CISCO WAE: wae-db dead but pid file exists

Introduction

If you found similar alarms, you can follow the guide and try to workaround the issue.

Problem

My customer found WAE REST API not workable, after checked, found wae-db have issue and report alarm, as follow.
And try to restart the WAE service and reload VM, not any useful.

[root@wae-auto wae-db]# service --status-all | grep wae
JAVA_EXECUTABLE or HSQLDB_JAR_PATH in '/etc/sysconfig/hsqldb' is set to a non-file.
wae-appenginecore is running OK, with PID=18606
wae-core is running OK, with PID=18163
wae-db dead but pid file exists  <<<<<<
wae-designapiserver is running OK, with PID=18847
wae-messaging is running OK, with PID=17874
wae-ni is running OK, with PID=17525
wae-osc is running OK, with PID=18369
wae-svcs-dashui is running OK, with PID=16652
wae-svcs-db is running OK, with PID=16277
wae-svcs-localrepo is not running
wae-svcs-log is running OK, with PID=16497
wae-svcs-logagent is running OK, with PID=16570
wae-svcs-metricsbkr is running OK, with PID=16716
wae-svcs-metricsd is running OK, with PID=16806
wae-svcs-mon is running OK, with PID=16138
wae-svcs-ui is running OK, with PID=16917
wae-system-server is running OK, with PID=16186
wae-web-server is running OK, with PID=17761

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