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Re: [Rtg-yang-coord] issue :R03: assignment of interfaces to routing instances

"Acee Lindem (acee)" <acee@cisco.com> Tue, 13 January 2015 01:11 UTC

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>
Thread-Topic: [Rtg-yang-coord] issue :R03: assignment of interfaces to routing instances
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Date: Tue, 13 Jan 2015 01:11:45 +0000
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Subject: Re: [Rtg-yang-coord] issue :R03: assignment of interfaces to routing instances
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Hi, 

Lada and I have been discussing this issue for some time and were hoping
for some comments from the routing community. The question is basically
whether to have a list of interfaces in routing-instance that reference
the RFC 7223 interfaces:

        container interfaces {
           description
             "Configuration of the routing instance's interfaces.";
           list interface {
             key "name";
             description
               "List of network layer interfaces assigned to the routing
                instance.";
             leaf name {
               type if:interface-ref;
               description
                 "A reference to the name of a configured network layer
                  interface.";
             }
           }
         }



Or to augment the RFC 7223 interfaces to point to the routing-instance.


Thanks,
Acee

On 11/25/14, 8:16 AM, "Ladislav Lhotka" <lhotka@nic.cz> wrote:

>Hi,
>
>this issue refers the YANG module "ietf-routing" contained in
>
>http://tools.ietf.org/html/draft-ietf-netmod-routing-cfg-16
>
>Please indicate your preference or add comments.
>
>***** :R03: assignment of interfaces to routing instances
>      In -16 it is done by including a network-layer interface in the
>      list rt:interface under rt:routing-instance. An advantage of
>      this organization is that the rt:interface list should contain
>      only network layer interfaces for which the assignment makes
>      sense. A drawback is that the assignment is detached from the
>      specification of IP addresses in if:interface.
>
>****** Solution R03-1
>       No change.
>
>****** Solution R03-2
>       Do the assignment of an interface to a routing instance inside
>       the if:interface entry.
>
>-- 
>Ladislav Lhotka, CZ.NIC Labs
>PGP Key ID: E74E8C0C
>
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