[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [OPSAWG] [OPS-AREA] Present day reality of COPS-PR
We can write a short cal for input about implementations and deployments
of COPS-PR on the general IETF list, pointing to the discussion going on
in OPSAWG. Certainly such input may also arrive at the time of the IETF
LC but it would be better to know about it earlier.
Dan
> -----Original Message-----
> From: David Harrington [mailto:ietfdbh at comcast.net]
> Sent: Wednesday, September 30, 2009 2:22 PM
> To: Romascanu, Dan (Dan); paduffy at cisco.com
> Cc: opsawg at ietf.org
> Subject: RE: [OPS-AREA] Present day reality of COPS-PR
>
> Hi,
>
> These claims were gathered by me from co-workers familiar
> with COPS-PR.
> I have not checked any of the claims.
>
> The most interesting to me are the claims of deployment in
> FIOS, FT-Orange, and Comcast.
> We should seek out people knowledgeable about the
> technologies used in these networks, and ask about COPS-PR.
> Does anybody have contacts within the IT departments of these
> companies?
>
> dbh
>
> > -----Original Message-----
> > From: Romascanu, Dan (Dan) [mailto:dromasca at avaya.com]
> > Sent: Wednesday, September 30, 2009 7:14 AM
> > To: David Harrington; paduffy at cisco.com
> > Cc: opsawg at ietf.org
> > Subject: RE: [OPS-AREA] Present day reality of COPS-PR
> >
> >
> > (moving the discussion to OPSAWG).
> >
> > > -----Original Message-----
> > > From: ops-area-bounces at ietf.org
> > > [mailto:ops-area-bounces at ietf.org] On Behalf Of David Harrington
> > >
> > > >
> > > > - there are few, if any, significant deployments.
> > > >
> > > > AFAIK, there is minimal commercial or open source support.
> > >
> > > I have not been able to research these claims, but I am told that
> > > COPS-PR is actually in use in a number of places. Here
> are some of
> > > the claims I have heard:
> > >
> > > 1) Juniper uses COPS-PR for their resource allocation, using both
> > > push and pull methods, at least in the access and aggregation
> > > network.
> > > 2) COPS-PR may be deployed in the Verizon FIOS (FTTH)
> access network
> > > in the US.
> > > 3) COPS-PR may be deployed in the FT-Orange IPTV access
> > network in UK.
> > > 4) Comcast uses a mix of COPS and COPS-PR in cable TV video QoS
> > > control.
> > > 5) COPS-PR is in DOCSIS 1.0 QoS, which may still be used in cable
> > > deployments
> > > 6) Huawei uses both COPS and COPS-PR in their Quidway RM9000
> > > Resource Manager and their Multi-Service Control Gateway solution
> > > (public documents show COPS, but I have not found
> explicit mention
> > > of COPS-PR; I am checking further)
> > > 7) ITU-T has a proposal being considered that is based on COPS-PR
> > >
> > > Searching the Web I found some additional information that might
> > > bear further research (many items have no associated dates):
> > > 8) MultiService Forum has an Implementation Agreement for Dynamic
> > > Policy Control Using COPS-PR (2005)
> > >
> >
> http://www.msforum.org/techinfo/approved/MSF-IA-COPS-PR.001-FINAL.pdf
> > > 9) IEEE Xplore has a paper that apparently was presented
> at ICT 2008
> > > comparing the performance of COPS-PR and Netconf.
> > > The paper might identify some equipment that has COPS-PR support.
> > > 10) A 2006 paper was published in the Proceedings of the IEEE
> > > International Workshop on Policies for Distributed Systems and
> > > Networks. The paper considers substituting Netconf and/or
> SOAP for
> > > COPS-PR
> > > 11) I found discussion of COPS-PR in JUNOSe and the SAE
> on the web,
> > > apparently for the SDX line (dated 2008). Was this from
> the Juniper
> > > acquisition of netscreen and neoteris?
> > > 12) Sejong University apparently has developed a COPS-PR lite
> > >
> http://ietcom.oxfordjournals.org/cgi/content/abstract/E90-B/11/3024
> > > 13) EION has an implementation
> > > http://www.eion.com/protocols/protocols_traffic_cops.html
> > > 14) Cisco Catalyst has an implementation
> > > 15) Wireshark apparently implements it
> > > 16) ACSE Networks implements COPS-PR in their NeuTrans product
> line
> > > 17) ZNYX Networks implements COPS-PR in the ZX4900
> > > 18) libsmi implemented it
> > > 19) Operax AB implemented it
> > > 20) MIB Smithy implemented it
> > > 21) GridNet has implemented it in its products for managing
> utility
> > > (power) grids
> > > 22) GE apparently embeds the GridNet implementation in its WiMax
> > > SmartMeter and SmartGrid Router family of products
> > > 23) COPS-PR has been the subject of a tremendous number
> of academic
> > > papers
> > >
> >
> > There claims need to be examined carefully. We need to
> differentiate
> > between academic papers, code implementation and deployment. It is
> > probably true that a number of open source packages and tools
> > implemented COPS-PR after it was put on standards track, but the
> > question is to what extent this code was also used and deployed.
> Same
> > for the vendors implementations - was COPS-PR deployed and how? In
> > the absence of standards PIBs I suspect that the majority
> or all the
> > deployments use one vendor tools and agents, but we need to give
> > enough time for these vendors to step ahead and explain in case
> > interoperability is impacted by the proposed standards action.
> >
> > Dan
> >
>
>