[L2sm] draft-ietf-l2sm-l2vpn-service-model

Ashish Mittal <Ashish.Mittal@aricent.com> Mon, 08 January 2018 07:31 UTC

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From: Ashish Mittal <Ashish.Mittal@aricent.com>
To: "l2sm@ietf.org" <l2sm@ietf.org>
Thread-Topic: draft-ietf-l2sm-l2vpn-service-model
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Date: Mon, 8 Jan 2018 07:31:31 +0000
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Subject: [L2sm] draft-ietf-l2sm-l2vpn-service-model
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Hello,

The way contains are organized in this service model will cause problems for software implementation.

To identify Sites associated with a service, implementation shall iterate all the sites list. Also VPLS kind of services when orchestrator is sending service creation request to SDN Controller Application, then when shall application assume that all Sites have been received.

A slightly modified organization shall help getting rid of above problems. Please suggest.

Current Organization of Yang:

container l2vpn-svc {
container vpn-profiles {
uses vpn-profile-cfg;
}
container vpn-services {
list vpn-svc {
key "vpn-id";
leaf vpn-id {
type svc-id;
description
"Defining a service id.";
}
leaf vpn-svc-type {
type identityref {
base service-type;
}
description
"Service type";
}
leaf customer-name {
type string;
description
"Customer name";
}
leaf svc-topo {
type identityref {
base vpn-topology;
}
....
}
}

container sites {
list site {
key "site-id site-type";
leaf site-id {
type string;
description
"Site id";
}
...
}
}
}

Proposed Organization of Yang:

container l2vpn-svcs
{
               list l2vpn-svc
               {
key "vpn-id";
leaf vpn-id {
type svc-id;
description
"Defining a service id.";
}
               container vpn-services {
               leaf vpn-svc-type {
type identityref {
base service-type;
}
description
"Service type";
}
leaf customer-name {
type string;
description
"Customer name";
}
leaf svc-topo {
type identityref {
base vpn-topology;
}
....
               }
               container sites
               {
list site {
key "site-id site-type";
leaf site-id {
type string;
description
"Site id";
}
...
}
               }
}

Regards

Ashish Mittal

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