August 2018
Intermediate to advanced
466 pages
10h 23m
English
Content preview from Mastering Python Networking - Second Edition
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The Cisco and YANG models
Earlier in this chapter, we looked at the possibility of expressing the network by using the data modeling language YANG. Let's look into it a little bit more with examples.
First off, we should know that the YANG model only defines the type of data sent over the NETCONF protocol without dictating what the data should be. Secondly, it is worth pointing out that NETCONF exists as a standalone protocol, as we saw in the NX-API section. YANG, being relatively new, has a spotty supportability across vendors and product lines. For example, if we run the same capability exchange script that we have used before for a Cisco 1000v running IOS-XE, this is what we will see:
urn:cisco:params:xml:ns:yang:cisco-virtual-service?module=cisco- ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.