Re: [PWE3] Flow Label in fat-pw

[Lucy Yong <lucyyong at huawei.com>]

Stewart,

You catch my point. S/N is per PW not per flow label. 

Lucy

> -----Original Message-----
> From: Stewart Bryant [mailto:stbryant at cisco.com]
> Sent: Friday, March 27, 2009 6:10 PM
> To: Yaakov Stein
> Cc: Lucy Yong; pwe3 at ietf.org
> Subject: Re: [PWE3] Flow Label in fat-pw
> 
> Yaakov Stein wrote:
> > Stewart
> >
> > There are two correct ways of using sequencing with inverse muxing.
> >
> > One is to define identifiable flows (fat PWs) and to use SN per flow.
> >
> > The other is to not bother about flows and USE the SN per PW
(PW-bonding).
> >
> 
> I agree there are two ways, but I think the flow method is more suitable
> for 100G than
> bonding.
> 
> BTW 100G is kind of too close, what number do I need to use to describe
> two generations
> time.
> 
> Stewart
> > Y(J)S
> >
> > -----Original Message-----
> > From: Stewart Bryant [mailto:stbryant at cisco.com]
> > Sent: Friday, March 27, 2009 09:11
> > To: Yaakov Stein
> > Cc: Lucy Yong; pwe3 at ietf.org
> > Subject: Re: [PWE3] Flow Label in fat-pw
> >
> > Lucy is correct, we need to turn off s/n or we will have problems.
> >
> > This is because the s/n is defined per pw not per flow.
> >
> > Stewart
> >
> > Yaakov Stein wrote:
> >
> >> Lucy
> >>
> >>
> >>
> >> Can you explain why you believe there will be misordering ?
> >>
> >>
> >>
> >> Y(J)S
> >>
> >>
> >>
> >> *From:* pwe3-bounces at ietf.org [mailto:pwe3-bounces at ietf.org] *On
> >> Behalf Of *Lucy Yong
> >> *Sent:* Friday, March 27, 2009 03:39
> >> *To:* pwe3 at ietf.org
> >> *Subject:* [PWE3] Flow Label in fat-pw
> >>
> >>
> >>
> >> Hi Bryant,
> >>
> >>
> >>
> >> One comment about using flow label over a pseudowire is:  if the
> >> control word is used in a pseudowire and non-zero sequence number is
> >> inserted, when using flow labels, it may cause the egress PE burden to
> >> perform packet sequencing and increase the possibility of packet out
> >> of order. Therefore, it is better to mention in the draft that when
> >> the control word presents and non-zero sequence number is used, the
> >> flow label should not be used or if it is used, the constant flow
> >> label should be used.
> >>
> >>
> >>
> >> Regards,
> >>
> >> Lucy
> >>
> >>
> >>
> >>
------------------------------------------------------------------------
> >>
> >> _______________________________________________
> >> pwe3 mailing list
> >> pwe3 at ietf.org
> >> https://www.ietf.org/mailman/listinfo/pwe3
> >>
> >>
> >
> >
> >
> >