Re: Enhanced protection

[Fabio Ricciato <fabiolinous@yahoo.com>]

Hi,

this mail is in the same track about "Enhanced
protection".

We made some work about dual-fault protection,
assuming path-based (-->E2E protection) schemes.
In other words, an active LSP (say Ps) is associated
to *two* backup LSP, Pr1 and Pr2, and they are
opportunely disjoint (i.e. they do not share link /
node / SRLGs).

We also investigated the possibility of applying
sharing of backup bandwdith for such dual-fault
protection scheme.

Could this be considered a form of "enhanced
protection" w.r.t to 1+1 ? 

Fabio Ricciato
University of Rome




--- Samer Lahoud <samer.lahoud@enst-bretagne.fr>
wrote:
> Hi,
> I want to have more information about the ENHANCED
> protection level defined in the GMPLS context : 
> RFC 3471 specifies that it "indicates that a
> protection scheme that is more reliable than
> dedicated 1+1 should be used, 
> e.g., 4 fiber BLSR/MS-SPRING". What do you
> precisesly mean buy this expression (when could we
> confirm that we have enhanced protection level) and
> could i have more examples?
> 
>                                                     
>                                                     
>                                        Regards
> 


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