First look at Cisco NSO – Network programmability stream 16
The recording of the network programmability stream which occurred on 2018/06/24
On this stream I started playing with Cisco NSO – network configuration state automation tool. We went through the first example in the documentation which covers basic usage of netsim (network operating system CLI simulator), configuration of network devices through NSO, device groups and templates as well as synchronization between the individual device configuration and NSO configuration database (CDB)
During the stream we also discussed how NSO works and its building blocks as well as how it is different comparing to tools like DNA Center on one side and tools like Ansible, Salt on another side.
At the beginning of the stream we spent some time discussing my Cisco Live US experience and some updates to my website
Timecode:
0:00 - Introduction, news and announcements
1:36 - Cisco Live US 2018 impressions
10:12 - Updates to my website
14:20 - Questions about NSO
18:15 - Differences between DNA-C, NSO and tools like Ansible, NAPALM
31:45 - Why I think that Ansible is not the right automation tool for network configuration management
47:48 - Questions about Nornir, Fabric, tandem NSO + Ansible
56:26 - Introducing Cisco NSO
1:24:00 - Installation files, process and docs
1:38:50 - Getting Started
1:39:55 - NSO Netsim - simulation of CLI parser
1:58:23 - Running NSO and exploring NSO CLI
2:25:46 - NSO CLI: configuration change, commit, rollback
2:39:38 - Device groups
2:44:46 - Device templates
2:51:30 - Network Element Driver (NED) package: exploring yang model and Java code behind them
3:04:20 - Device templates advanced: different tags (merge, replace, delete, create, etc.) and variables
3:22:09 - Out-of-band change, desynchronization, restoration to managed state
3:30:58 - Stream summary, closing and final questions
Resources:
NSO developer hub: https://communities.cisco.com/communi...
DevNet NSO page: https://developer.cisco.com/site/nso/
DevNet NSO learning labs: https://learninglabs.cisco.com/module...
D-cloud NSO sandbox: https://dcloud2-lon.cisco.com/content...
NSO developer GitHub: https://github.com/NSO-developer
Please note that this content is stream-first and it is slow-paced by design. I recommend increasing playback speed in the player settings.
Don't miss my upcoming streams at / dmfigol
The code is on my github: https://github.com/dmfigol/network-pr...
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Blog: https://dmfigol.me
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