« Return to Thread: Re: pwe3 Digest, Vol 95, Issue 11

Re: pwe3 Digest, Vol 95, Issue 11

by Lizhong Jin :: Rate this Message:

The ICCP draft does assume the use of the pw-redundancy-bit draft. Section
9.1.3 describes two modes of operation (depending on configuration):

- When an external AC redundancy mechanism is in use, and is being
synchronized among the PEs via ICCP. In this mode, PW state is not
synchronized via ICCP and the Independent Mode of operation is used for PW
state signaling. This guarantees that the AC and PW states are always in
sync for a given PE (to avoid deadlock).

- When an external AC redundancy mechanism is not in use, then PW state is
synchronized via ICCP. In this mode, either the Independent mode or the
Master/Slave mode could be used for PW state signaling.

[Lizhong] and if independent mode is applied, the the operator MUST be care to configure same high/low PW priority at two end-points of active/standby PW, otherwise, will result two standby PW. More details are in draft-liu-l2vpn-vpls-inter-domain-redundancy-02 section 5.

Regards

Lizhong

We will add clarifications to that effect in a future revision.

Regards,
Samer

On 12-03-15 4:38 AM, "Daniel Cohn" <DanielC@...> wrote:

> Hi draft-ietf-pwe3-iccp authors and list at large,
>
> Is there a reason why the ICCP draft does not explicit reference the pw
> redundancy draft? It does mention active/standby signaling for the PWs, so
> implicitly it seems to assume that the other endpoint is implementing
> draft-pw-redundancy-bit, but in that case some details are missing such as
> which pw redundancy mode should be used (e.g. master/slave), how PW precedence
> should be configured, etc.

>
> Is this something you plan to add in future revisions?
>
> Thanks,
>
> Daniel
>
>
>
> _______________________________________________

> pwe3 mailing list
> pwe3@...
> https://www.ietf.org/mailman/listinfo/pwe3

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.ietf.org/mail-archive/web/pwe3/attachments/20120315/91462e58/attachment.htm>

------------------------------

_______________________________________________
pwe3 mailing list
pwe3@...
https://www.ietf.org/mailman/listinfo/pwe3

« Return to Thread: Re: pwe3 Digest, Vol 95, Issue 11