Read details of the Red Hat OpenStack Platform success stories—as well as testimonials from high-profile representatives from each company.
In episode 1, we take an introspective look back at some of our biggest mistakes when operating live production networks. The panel discusses outages that range from a total outage on a global MPLS network, to taking out a core switch due to an over-active case of OCD. Valuable, hard-earned, lessons are shared by this group of experienced network engineers and possibly a funny story or two.
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
Audio Only Podcast Feed:
The post Episode 1 – Top 10 Ways To Break Your Network appeared first on Network Collective.
In episode 1, we take an introspective look back at some of our biggest mistakes when operating live production networks. The panel discusses outages that range from a total outage on a global MPLS network, to taking out a core switch due to an over-active case of OCD. Valuable, hard-earned, lessons are shared by this group of experienced network engineers and possibly a funny story or two.
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
Audio Only Podcast Feed:
The post Episode 1 – Top 10 Ways To Break Your Network appeared first on Network Collective.
Learn the basics about how devices communicate in an IPv4 network.
One of my readers considered joining the Building Network Automation Solutions course but wasn’t sure whether it would help him solve the challenges he’s facing in his network.
Fortunately, his challenges aren’t that hard to solve.
Read more ...TL;DR: when configuring a Linux bridge, use the following commands to enforce isolation:
# bridge vlan del dev br0 vid 1 self # echo 1 > /sys/class/net/br0/bridge/vlan_filtering
A network bridge (also commonly called a “switch”) brings several Ethernet segments together. It is a common element in most infrastructures. Linux provides its own implementation.
A typical use of a Linux bridge is shown below. The hypervisor is
running three virtual hosts. Each virtual host is attached to the
br0
bridge (represented by the horizontal segment). The hypervisor
has two physical network interfaces:
eth0
is attached to a public network providing various services
for the virtual hosts (DHCP, DNS, NTP, routers to Internet, …). It is
also part of the br0
bridge.eth1
is attached to an infrastructure network providing
various services to the hypervisor (DNS, NTP, configuration
management, routers to Internet, …). It is not part of the
br0
bridge.The main expectation of such a setup is that while the virtual hosts should be able to use resources from the public network, they should not be able to access resources from the infrastructure network (including resources hosted on the hypervisor itself, like a Continue reading