RE: 10GE data rate and OAMP issues

["Bill St. Arnaud" <Bill.St.Arnaud@xxxxxxxxxx>]

>
> Roy:
> I wanted to get your expert opinion on a few issues that would be of
> interest to me as we go forward in the standard:
>
> 1) do you really believe that we need to support all the WAN OAMP
> features in 10GE?  I would rather prefer a light-weight 10ge protocol
> that guarantees the lowest cost in the LAN, but make sure that it can be
> wrapped easily into a WAN envelope to support all the WAN features.

As far as I know in the SONET/DWDM world there does not yet exist any OAMP
standards.  These are all proprietary to the various manufacturers.  Yes,
there does exist numerous bytes in the SONET header for signalling of
protection switching, etc.  But interoperability at the transport level
remains a challenge, never mind OAMP interoperability.  The Optical Internet
Forum (OIF) has been working very hard to develop standards in this area.

In my opinion it would be unwise at this time for HSSG to venture into this
area as so there so many complexities and conflicting priorities.

Traditional carriers have very demanding requirements for OAMP which may be
significantly more stringent than that required for non-traditional carriers
who may want to deploy low cost medium haul GbE links.  I don't know of a
single traditional carrier who plans to deploy native GbE on medium or long
haul links.  I suspect traditional carriers, in most cases, will map 10GbE
to SONET for long haul (and even short haul) applications where they can
take advantage of  well known OAMP tools.  A number of vendors are already
offering products that map GbE ( and soon 10GbE) to SONET

Non-traditional carriers such as regional networks, ISPs, etc have 2
choices:

1. Carrying GbE on data transparent networks and using OAMP tools at the
optical level (a couple of products are already on the market in this area)

2. Carrying native GbE on dark fiber and using proprietary OAMP techniques
combined with SNMP

Bill


>
> 2) at the last meeting, Paul Bottorff as well as Mike Salzman presented
> approaches to a serial 10GE standard based on scrambling as opposed to
> block coding.  Both of these could be used for a low-cost serial LAN
> standard, and wrapped into WAN envelopes like SONET to provide WAN OAMP
> features.  The 10GE data rate would have to be kept to around 9.6 Gb/s
> to make that possible at the lowest cost.  Presumably, that would
> accelerate the acceptance of 10GE in the WAN.
>
> 3) Alternatively, we could propose to allow for additional control
> fields in the 10GE standard that duplicate the functions most important
> for WAN apps.  This may be the cleanest solution, but it will require
> 802.3 to venture into an area that it has not worried about before...
>
> Any thoughts?
>
> Martin