The Linux come from by my compiled kernel that supports uSID, please check my last blog: Compile SRv6 uSID and VPP on ubuntu 20.04

Before doing SRv6 lab, please double confirm enable the function by following cmd:

sysctl -w net.ipv6.conf.all.forwarding=1
sysctl -w net.ipv4.conf.all.forwarding=1
sysctl -w net.ipv6.conf.all.seg6_enabled=1

Check by following cmd:

root@vm1:/home/cisco# sysctl -a |grep net.ipv6.conf.all.forwarding
net.ipv6.conf.all.forwarding = 1

Above cmd will disappear after reboot, you can permanently write to “/etc/sysctl.conf”.

Btw, how to config srv6 and usid, reference follows:

SRv6 uSID Linux Iproute2

SRv6 – Linux Kernel Implementation

Topology

完整阅读

At some times, we only have a qcow2 image, but ESXI(vCenter) only supports vmdk, how to do deploy? In the video guide, I will show how to convert img to vmdk from qcow2, then deploy by import exist hardware(vmdk).

Btw, xrv9k supports only 3 virtual interfaces: e1000, virtio, and VMXnet3. Please notices not support e1000e!

完整阅读

PS: Compile Server base on “focal-server-cloudimg-amd64.vmdk”, 20200706 update.

General Config on ubuntu

Config port by new “ip” cmd, and DNS

root@server-test:/opt# ip addr add 10.75.37.59/24 dev ens4
# config addr for one port 
root@server-test:/opt# ip addr del 172.16.1.163/24 dev ens3
# delet addr for one port
root@server-test:/opt# ip addr
# equal with ifconfig
root@server-test:/opt# ip link set ens4 up
# up one port 
root@server-test:/opt# ip -s link ls ens4
# cool cmd, check RX/TX packets, errors, dropped, overrun, mcast
root@server-test:/opt# ip route add default via 10.75.37.1 
# config default route
root@server-test:/opt# ip route
# check v4 route table
root@server-test:/opt# ip -6 route
# check v6 route table
root@server-test:/opt# echo 'nameserver 64.104.123.144' > /etc/resolv.conf

完整阅读

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

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.