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DX6 on Linux by uSID

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

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How to deploy xrv9k in vCenter if you have only qcow2 image?

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

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Compile SRv6 uSID and VPP on ubuntu 20.04

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

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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:

完整阅读

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How to Import Global Route in IXIA

Thanks @JianJian‘s sharing how to import global route in IXIA. The article have two part, 1st part was done by IxNetwork original way. 2nd part will done by IXNetwork Scenario (later updste).

Before import, we must have global route table file, we can download from follow lnik:

http://bgp.potaroo.net/as2.0/bgptable.txt

http://bgp.potaroo.net/v6/as2.0/bgptable.txt

完整阅读

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