Subject: [Rtg-yang-coord] Welcome to join the Yang model work

From: Lizhenbin <[email-masked]>
Date: Thu, 6 Nov 2014 17:34:05 +0000

Hi Folks,

Last year I did the prensentation on draft-zhang-i2rs-mbh-usecases-00 in Vancouver. For the mobile backhaul network, traditionally the whole network solution can be provisioned through network management and it needs to interworking with devices through all kinds of configurations. But it always faces the following challenge:

1. There are different imiplementation for the features from different vendors. That is, the configuration model will be different so that there will be tough work for interworking with devices from multiple vendors.

2. If we hope to unify the models, there are also tough work. It is not only because of multiple verdors, but also because that there are so many features to be taken into account.

But it becomes inevitable to construct an open IP network and every one can see the open source are making rapid progress and will have much effect on our existing network. No matter we like it or not, our standard work has to comply with the trend and take the boil-the-ocean job. My presentation on draft-zhang-i2rs-mbh-usecases-00 tried to remind the complexity of provisioning the complete solution for the IP network. On the other hand, we gain more advantage to define the models. For the past years, defining MIBs is a challenging work since it adopts a "down-top" method as the development of IP features. Now IP applications and protocols becomes more mature that we can adopt a "top-down" design to define all possible models of featues involved into the whole IP network solutions. Based on the top-down design, we organize our colleagues to define the possible configuraition Yang models for LDP, MPLS TE,  MPLS OAM, L2VPN, EVPN, L3VPN, PIM, IGMP, PCE, L2TP, VXLAN, TRILL, etc. and the possible information model/data models based on all kinds of usecases in I2RS WG.  Though we hope to contribute much to define the models for open IP network, we face the challenge that we are not familiar with engouh experts from all parties to be able to work out the well-accepted models through sufficient discussion. These models are just seen as the basic proposal for reference and discussion. I hope Yang folks could propose comments on these models, collaborate on defining these models and even challenge these models. Thus we could work out the well-accepted models fast to benefit the open IP network to faciliate provisioning IP services.

Thanks,

Zhenbin(Robin)