The post Episode 49 – Mentorship (Ad Free) appeared first on Network Collective.
Mentorship can have a significant impact on early career development and in this episode we sit down to talk about what you can expect from the mentorship process, how to find a mentor, and how to be a mentor.
We would like to thank Cumulus Networks for sponsoring this episode of Network Collective. Cumulus Networks makes networking software for the open, modern data center. It’s the only open networking software that allows you to affordably build and efficiently operate your network like the worlds largest data center operators. Cumulus also just launched a brand new certification program offering free resources, on-demand modules, live training, and a certifications exam. If you would like to learn more you can head on over to https://cumulusnetworks.com/certified
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
The post Episode 49 – Mentorship appeared first on Network Collective.
Every time I’m running a data center-related workshop I inevitably get pulled into stretched VLAN and stretched clusters discussion. While I always tell the attendees what the right way of doing this is, and explain the challenges of stretched VLANs from all perspectives (application, database, storage, routing, and broadcast domains) the sad truth is that sometimes there’s nothing you can do.
In those sad cases, I can give the workshop attendees only one advice: face the reality, and figure out how badly you might fail. It’s useless pretending that you won’t get into a split-brain scenario - redundant equipment just makes it less likely unless you over-complicated it in which case adding redundancy reduces availability. It’s also useless pretending you won’t be facing a forwarding loop.
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In the recent G7 outcome document “Combating the use of the Internet for Terrorism and Violent Extremist Purposes“, Ministers of the Interior made commitments on content filtering and “lawful access solutions” for encrypted content, which, if implemented, would greatly weaken the security of the Internet, G7 economies and their citizens.
While there is an urgent need to prevent terrorists and violent extremists from exploiting Internet platforms, facing down terrorist threats and cybercrime requires strong, secure communications. Not the opposite.
We find the commitments in the document cause for alarm.
Rather than encouraging Internet companies to weaken their security, global leaders should be discussing how to increase the use of encryption, make it easier to use, and harder to thwart.
Here’s why:
Encryption: What it is and why it is key to your security
As online threats of cybercrime, mass surveillance, data breaches have grown so has the use of encryption – to protect the confidentiality and the integrity of data that we all depend on.
Every responsible citizen wants to stop terrorism, and “lawful access” sounds like a reasonable way to access potentially crucial intel. The idea is that, under the appropriate legal authorization, legitimate law enforcement agencies Continue reading
Sometimes you will have some L2 domains (Bridge Domains – BD) in your datacenter that will be used with hardware appliances like F5 NLB or something like an additional firewall, WAF or something similar. That is the case where ACI will not route or bridge but the only L3 point of exit from that kind of segment would be on actual hardware appliance outside ACI Fabric – connected to the Leaf port. We will take an example here and use it throughout the article where BIG IP F5 NLB is used as an L3 termination of L2 BD 10.10.10.0/24. F5
The post How to Advertise a Route from ACI Layer2 BD Outside the Fabric? appeared first on How Does Internet Work.
On today's Heavy Networking we explore how to build a source of truth for networking devices as a foundation for automation. Our guests Damien Garros and Adam Mills of Roblox share their real-world experiences developing sources of truth using Netbox and Git as part of a company-wide automation effort.
The post Heavy Networking 442: The Source Of Truth Shall Set You Free (To Automate) appeared first on Packet Pushers.
The promise of the AMP (Accelerated Mobile Pages) project was that it would make the web, and, in particular, the mobile web, much more pleasant to surf. The AMP HTML framework was designed to make web pages load quickly, and not distract the user with extraneous content that took them away from focusing on the web page’s content.
It was particularly aimed at publishers (such as news organizations) that wanted to provide the best, fastest web experience for readers catching up on news stories and in depth articles while on the move. It later became valuable for any site which values their mobile performance including e-commerce stores, job boards, and media sites.
As well as the AMP HTML framework, AMP also made use of caches that store copies of AMP content close to end users so that they load as quickly as possible. Although this cache make loading web pages much, much faster they introduce a problem: An AMP page served from Google’s cache has a URL starting with https://google.com/amp/
. This can be incredibly confusing for end users.
Users have become used to looking at the navigation bar in a web browser to see what web site Continue reading
his thread on Reddit/r/networking about building your own branch NFV caught my interest
The post Response: BYO Branch NFV appeared first on EtherealMind.
Klusterkit can work with frameworks like Cluster API and kubeadm to help enterprises use Kubernetes...
Omnitek will join Intel’s Programmable Solutions Group, and will provide video and AI inferencing...
Dave Oran joins Donald and I to talk about the history of DECnet at Digital Equipment—including the venerable IS-IS interior gateway protocol.
Outro Music:
Danger Storm Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/
According to Jody Hagemann, who is developing the Comcast Business ActiveCore platform (starting...
The Chinese juggernaut this week is trying to shift attention to the future by highlighting 5G...
Another great feature supported by DCNM concerns the extension of Layer 3 connection across an external Layer 3 network using VRF-Lite hand-off from the Border leaf node toward the external Edge router.
There are different options to deploy a VRF-Lite connection to the outside of the VXLAN fabric. Either using a manual deployment or leveraging the auto-configuration process that will configure automatically the VRF-lite toward the Layer 3 network.
One of the key reasons for configuring the interfaces manually is when the Layer 3 network is managed by an external service provider, thus the Network team has no control on the configuration which is imposed by the Layer 3 service operator.
The first demo illustrates an end-to-end manual configuration of VRF-Lite connections from the Border leaf node to an external Edge router.
The Border leaf nodes being a vPC domain, the recommendation is to configure a interface per vPC peer device connecting the external Layer 3 network. As a result, I configured 1 “inter-fabric” type link per Border Gateway.
Prior to deploy the external VRF-lite, an external fabric must be created in which the concerned Edge router should be imported. For this particular scenario, because the Network team is not Continue reading
Shared knowledge makes for a stronger ecosystem and with this in mind, I’m going to show you how to set up the CL 3.7.5 campus feature: Multi-Domain Authentication in a 6-part blog series.
We’ll cover it all: Wired MAC Authentication using Aruba ClearPass, Multi-Domain Authentication using Aruba ClearPass, Wired 802.1x using Cisco ISE, Wired MAC Authentication using Cisco ISE, and Multi-Domain Authentication using Cisco ISE.
The first guide I’ll be sharing is how to enable wired 802.1X authentication in Cumulus Linux 3.7.5+ using Aruba ClearPass 6.7.x.
Keep in mind that this step-by-step guide assumes that you have already performed an initial setup of Aruba ClearPass.
1. Add the Cumulus Switch to ClearPass
First, we are going to add this specific Cumulus Network switch to ClearPass. Go to the following:
Configuration > Network > Devices. Click “+Add” in the top right-hand corner
Fill in the appropriate IP Address, Description, and Shared Secrets. For simplicity sake, set the “Vendor Name” to “Cisco.”
2. Adding the Cumulus Switch to a Device Group
Configuration > Network > Device Groups. Click “+Add” in the top right-hand corner
We are Continue reading