Source-Specific Multicast Configuration
In SSM, Source-Specific Multicast, things are done differently from standard multicast forwarding. SSM is specifying a group of hosts that are receiving same multicast stream using group IP address and…
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I Became Cisco Champion for 2018
I just received an e-mail from Cisco with the notice that I was elected Cisco Champion for 2018. As Cisco says: “Cisco Champions are a group of highly influential technical…
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Cisco Champion for 2019
Again I made it to the list of Cisco Champions, making this the second year in a row! I am so glad that my effort to give back to the community…
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CLOS Topology
Edson Erwin invented this highly scalable and optimized way of connecting network nodes in the 1930s and Charles Clos made the telephone nodes interconnection design using that solution. It was even…
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Setting up Cisco ACI From Scratch
This Cisco ACI article describes the first few things you will do when getting ACI Fabric components in your datacenter. Cisco ACI 3.2 version was used to try the stuff…
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Cisco ACI – API Calls vs JSON POST
API Calls method The fancy way of configuring Cisco ACI Fabric is by using Python script for generating API calls. Those API calls are then used to configure Cisco ACI…
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Software-defined data center and what’s the way to do it
SDDC – Software-Defined Data Centers Times of Software Defined everything has long since arrived, the need to implement many appliances, two or more for each network function, is not so…
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New ACI deployment? Watch out when connecting APICs to Leafs
It’s one of those articles aimed at the people with Cisco ACI experience who don’t bother with reading all the install and other guides again while going through n’th time…
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Packet Tracer labs – Practical Networking .net
Packet Tracer labs In an effort to continue helping CCNA candidates, I’ve taken to doing packet tracer labs on a live stream on YouTube. During the streams I will: Discuss…
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Missing good old ‘wr’ command on N9K? let’s bring it back!
Doing a lot on Nexus 9000 series datacenter boxes (N9K) lately? Sure you’re missing the good old ‘wr’ command to save your last startup-config into running-config. NXOS architecture guys decided…
