Recently I had a chance to try using Cisco’s Data Center Network Manager (DCNM) software in anger. I must confess that sometimes anger
was the right word, but at other times it definitely made me smile. Based on the state of the documentation it’s clear that there are a couple of areas where very few people have spent time digging in (if they had, the same errors wouldn’t be in the documentation for at least 5 releases of DCNM), so on that basis I’m using this post—and more to follow—to document some of the fun things I have discovered along the way. For reference, I am running DCNM version 10, so there have been nine previous versions of DCNM in which the behavior can be perfected, and I gather that version 10 is a big step up from version 9.
To put my testing in context, I have a specific FabricPath Leaf-Spine topology already designed, and I am only using the aspects of DCNM pertinent to my particular needs for an Ethernet LAN fabric. I say this up front because I know that I am not using all of DCNM’s functionality, and perhaps I’m missing out on some of the fabric automation Continue reading
Here are six technologies paving the way to more fully autonomous data center operations.
When the government owns the fibre and copper cabling but leaves the operation and revenue extraction to commercial companies you get competitive telecoms
Openreach’s DFA product will allow rival internet service providers (ISPs) access to the company’s fibre-optic cables, which technically means that they can install their own equipment at either end of the optical fibre, within Openreach’s cable ducts.
BT Openreach to trial Dark Fibre Access in August 2017 : https://www.telegeography.com/products/commsupdate/articles/2017/01/24/bt-openreach-to-trial-dark-fibre-access-in-august-2017/
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Do you need an LSP for MPLS ? In this post, I will go through below topics. This is one of the points which network engineers struggle to understand as I have seen. What is an LSP (Label Switched Path) ? What was the purpose of having LSP in the first place? Do we need […]
The post MPLS over IP Encapsulations and Comparison between MPLS over LSP appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.
Ansible (or Python+Paramiko/Netmiko) seems to be the tool used in most do-it-yourself network automation presentations and videos. Did you know there’s a scripting/automation alternative that’s hugely popular in parts of sysadmin and virtualization universe that almost nobody talks about in networking (because everyone is focused on huge data center fabrics and unicorns) – PowerShell (now also available on OSX and Linux).
Read more ...The company is already using the startup's tools to help provide a service called Flexible Capacity.
The deal includes former GE CIO Gary Reiner joining its board.