Re:[802.3ae] Wan Interface Sublayer
Mike,
Option (4) is the correct answer. SONET and WIS must
stay on their own network. A network device called
"ELTE" is doing the bridging between the WIS net and
the SONET.
James
--- > -----Original Message-----
> From: Ayers, Mike [mailto:Mike_Ayers@xxxxxxx]
> Sent: Friday, August 24, 2001 3:16 AM
> To: stds-802-3-hssg@xxxxxxxx
> Subject: RE: [802.3ae] Wan Interface Sublayer
>
>
>
>
> > From: Jonathan Thatcher
> > Sent: Thursday, August 23, 2001 04:49 PM
>
> > The entire jitter specification and test
> methodology for
> > SONET is different
> > than in 802.3ae. This is due, in part, to the
> objectives for the two
> > standards organizations and the history of the
> groups. In the
> > case of SONET,
> > a primary objective is to limit jitter propagation
> (yes, this is a
> > simplification); in 802.3ae, the primary objective
> is plug
> > and play (no
> > engineered links; no jitter propagation).
>
> Okay, but what does this translate to in terms of
> interoperability?
> I see four possibilities:
>
> 1.) WIS will always route well over SONET, but
> SONET can not be
> routed over XGBASE(name?) networks.
>
> 2.) WIS and SONET can run on each others'
> networks, but distances
> must be kept relatively short and number of hops
> relatively low to meet
> jitter/clocking specs.
>
> 3.) SONET will always route well over
> XGBASE(name?) networks, but
> WIS can not be routed over SONET networks.
>
> 4.) WIS and SONET must stay on their own networks.
>
> Which would it be?
>
> Thanks all,
>
>
> /|/|ike
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