Re: [manet] I-D Action: draft-ietf-manet-dlep-lid-extension-01.txt

[Rick Taylor <[e-mail]>]

Hi All,

Comments inline

On Mon, 2018-02-05 at 11:01 +0100, Henning Rogge wrote:
> Hi,
> 
> I think I like the new text two, its easy to read and introduce the
> new concept quickly.

Thank you (and Georg as well) very much!

> 
> The only thing I am concerned about is the "empty" flags field... do
> we already have an usecase for this?

I must admit, I copy and pasted the text from elsewhere, and then
realized I had no flags.

However, one possible flag could used to distinguish between Links to
Destinations with an IP address (addressable destinations/ Layer 3
radio net) and Links to  Infrastructure (no IP address, just a subnet).
 Although this extension doesn't need to differentiate, it might be
useful for the router to know the difference when used with other
extensions (hop control perhaps).

> 
> If not, we could remove it and introduce it (if necessary) in an
> extension... we could discover the existence of an (optional) flags
> field by comparing the length of the link-id TLV with the (known)
> value of the link-id-length TLV.

Yes, if a flags field was needed later, a 'Link Identifiers Flags'
extension could introduce it legitimately.