Re: MS-SPring

[dimitri papadimitriou <dpapadimitriou@psg.com>]

Huub,

[snip]

> > ok, btw, is there a reason to restrict to MS/line protection ring ?
>
> If you refer to the APS protocol, this can be used in ring
> protection and linear protection, because it operates between
> source and sink of a trail or LSP.
> In its most simple form it provides 1:1 protection, and more
> general N:M protection

i was referring to the scope of the document - should it be restricted 
to MS/line shared protection ring or include other types (e.g. path 
protection ring) - note: in my view not

> > > The reconfiguration of the ring after this first switch is controlplane
> > > driven and concerns all nodes in the ring.
> >
> > ok with this - like for other linear protection schemes the control 
> > plane would be involved in the provisioning
> >
> > also, what about the (informational) notification to maintain the 
> > control plane aware about the data plane status after failure 
> > detection and/or after the APS operation
>
> Maybe it is a good idea to include a description in the document
> Diego is preparing (in the book on functional modeling I need
> six pages to describe this protection mechanism).

imho, an overview should be enough to skim the ring protection scheme 
and the APS operation (no need to include full details that can be found 
elsewhere)

> Have a nice weekend, Huub.