Re: Discovering IP address to use for uBFD sessions

[Glen Kent <[e-mail]>]

Hi Manav,

We did have a discussion around this more than a year back here:
http://www.ietf.org/mail-archive/web/rtg-bfd/current/msg01294.html

There clearly was interest in pursuing something like this.

I agree that we should have some mechanism to discover the remote IP
addresses.

Glen


On Thu, Jun 20, 2013 at 10:39 AM, Bhatia, Manav (Manav) <
[e-mail]> wrote:

> Hi,
>
> draft-ietf-bfd-on-lags is silent on how the IP address used for micro BFD
> sessions is derived/learnt/discovered.
>
> It wisely assumes that an out-of-band mechanism exists which arms the
> routers with the knowledge about the remote IP address that it must use to
> establish the micro BFD session.
>
> Some time back few of us wrote a short draft -
> draft-mmsn-bfd-on-lags-address-00, that describes how routers can
> obtain/discover remote IP addresses required for establishing uBFD sessions.
>
> I would like the WG members to go through the above draft and discuss
> whether we need a draft that describes alternate ways to discover remote IP
> addresses or can we all assume that the remote IP addresses MUST be
> statically configured.
>
> The problem with implicitly assuming that the remote IP addresses MUST be
> configured is that as more folks start implementing this, they would
> stumble upon this issue and would be left clueless on how the IP addresses
> have to be derived. In case the WG decides that its premature to work on an
> autodiscovery mechanism, I would still like us to publish a draft that says
> that addresses MUST be statically configured and an Appendix where
> alternate mechanisms are listed along with their pros and cons (mostly for
> the sake of posterity).
>
> Cheers, Manav
>
>
>
>
>