Re: [netmod] YANG model for netowrk configuration of a device's management interface
Martin Bjorklund <mbj@tail-f.com> Wed, 01 November 2017 09:05 UTC
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Date: Wed, 01 Nov 2017 10:03:41 +0100
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To: jan.kundrat@cesnet.cz
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From: Martin Bjorklund <mbj@tail-f.com>
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Subject: Re: [netmod] YANG model for netowrk configuration of a device's management interface
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Hi, Jan Kundrát <jan.kundrat@cesnet.cz> wrote: > Hi, > I'm working on adding NETCONF support for configuring network on a few > management interfaces of our product, a random network appliance. I > would prefer not to reinvent this particular wheel, so I started > searching for existing models. I was surprised that it seems that all > vendors essentially go creative and appear to hack together something > proprietary. > > Our product has a pretty modern Linux system inside. It has three > network interfaces -- two gigabit RJ-45 ethernets, and one SFP > port. My goal is to offer an intuitive way of assigning static IPv4 or > IPv6 addresses, control whether DHCP/SLAAC are enabled, and perhaps > configuring one static VLAN on each of them. It would be amazing if I > could bridge them together, or if there was a way of configuring, say, > OSPF, but that comes secondary to getting basic stuff done. > > So far, I was able to find the following building blocks: > > - RFC 7223. Perfect -- I can simply leave out the arbitrary-names and > - pre-provisioning features. > - RFC 7277, so that I can assign IPv4 and IPv6 addresses by hand. Good. > - RFC 8022 for static route definitions. > > However, I would also like to offer one toggle which enables an IPv4 > DHCP client on a given interface. This is where stuff starts to get > interesting: > > - https://tools.ietf.org/html/draft-liu-dhc-dhcp-yang-model-06 and its > - IPv6 brother, > - https://tools.ietf.org/html/draft-ietf-dhc-dhcpv6-yang-04 . Wow. Why > - is the DHCP client configuration done outside of the /if:interfaces > - tree? So to summarize, it seems that you found published modules for what you were looking for, except for DHCP client configuration, for which you found one individual draft and one WG draft. I agree with your comment re. /if:interfaces. Since these documents are developed in the DHC WG, I suggest you send your comments to them, and hopefully you will be able to contribute to better models! /martin > > - https://tools.ietf.org/html/draft-faq-netmod-cpe-yang-profile-01 > - refers to the above, so it seems that I'm looking in a right > - direction. > > - https://tools.ietf.org/html/draft-ietf-rtgwg-device-model-02 looks > - nice because it mentions a "dhcp-client" within the /if:interfaces > - tree. However, it does not define how that node looks like! > > At this point I begin to understand why vendors unleash their > creativity when it comes to assigning IP addresses to management > interfaces of their boxes :(. However, I would prefer to just use > whatever is most common here, and focus on the application-specific > YANG model. Is there something that I can use as-is? I would hate to > implement 1000th version of this task... > > With kind regards, > Jan > > _______________________________________________ > netmod mailing list > netmod@ietf.org > https://www.ietf.org/mailman/listinfo/netmod >
- [netmod] YANG model for netowrk configuration of … Jan Kundrát
- Re: [netmod] YANG model for netowrk configuration… Martin Bjorklund
- Re: [netmod] YANG model for netowrk configuration… Vladimir Vassilev