On Sun, Nov 1, 2015 at 4:29 PM, fengchong (C) <frank.fengch...@huawei.com>
wrote:
>
>
> Hi,
>
> I prefer A.
>
>
>
This would be OK with me.
That way the default will be safe in all server variants.
Andy
> Otherwise, if ‘option1’ is supported, the default value should be
> ‘option1’ and ‘option2’ is supported ,the default value should be
> ‘option2’, B cannot express it.
>
>
>
> Or more default stmts can be allowed.
>
>
>
> leaf broken {
>
> type enumeration {
>
> enum option1 {
>
> if-feature option1;
>
> }
>
> enum option2 {
>
> if-feature option2;
>
> }
>
> enum option3;
>
> }
>
> default "option1" {
>
> if-feature option1;
>
> }
>
> default "option2" {
>
> if-feature option2;
>
> }
>
> }
>
>
> ------------------------------
>
> 冯冲
> 华为技术有限公司 Huawei Technologies Co., Ltd.
> [image: Company_logo]
>
> Phone:
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>
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> *发件人:* netmod [mailto:netmod-boun...@ietf.org] *代表 *Andy Bierman
> *发送时间:* 2015年11月2日 1:16
> *收件人:* netmod@ietf.org
> *主题:* [netmod] if-feature and default
>
>
>
> Hi,
>
>
>
> I started a separate thread for this issue.
>
> The current YANG 1.1 text is incomplete wrt/ default-stmt.
>
>
>
> leaf broken {
>
> type enumeration {
>
> enum option1 {
>
> if-feature option1;
>
> }
>
> enum option2 {
>
> if-feature option2;
>
> }
>
> enum option3;
>
> }
>
> default "option2";
>
> }
>
>
>
>
>
> What happens if the server does not advertise the option2 feature?
>
>
>
> I see 2 options:
>
> (A) add text that says a default-stmt MUST NOT include any conditional
>
> values
>
> (B) allow if-feature as a sub-statement of the default-stmt
>
>
>
> (BTW, customers have asked for (B), so it may be a feature and a bugfix)
>
>
>
>
>
> Andy
>
>
>
>
>
>
>
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