Re: [PWE3] WG last call requested for draft-ietf-pwe3-fcs-retenti on-01.txt

[Stewart Bryant <stbryant at cisco.com>]

Andrew G. Malis wrote:
> Stewart,
>
> Did you see the reply I sent on the list about this on Saturday?
>
> Cheers,
> Andy

Just found it.

- Stewart

> At 5/24/2004 10:44 AM +0100, Stewart Bryant wrote:
>
> > Sasha
> >
> > Good point.
> >
> > Stewart
> >
> > Sasha Vainshtein wrote:
> >
> > > Andy and all,
> > > A brief pre-LC comment on the draft in question:
> > > In its present form the draft only indicates whether the FCS is 
> > > retained or not  as the corresponding Interface Parameter does not 
> > > carry any value,just ID.
> > > This is OK when dealing with Ethernet and ATM AAL5 PWs.
> > > However, if you want to retain FCS in HDLC or FR PWs, FCS retention 
> > > only makes sense if the two ACs use the same FCS size (2 or 4 bytes). 
> > > If the sizes are different, FCS retenation cannot function. However, 
> > > the draft does not allow signaling of the expected FCS size and hence 
> > > does not prevent successful setup of non-operational PWs.
> > > Hopefully this comment will be helpful.


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